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-rw-r--r--erts/doc/src/erlang.xml102
-rw-r--r--erts/emulator/beam/bif.c235
-rw-r--r--erts/emulator/beam/bif.tab7
-rw-r--r--erts/emulator/beam/big.c247
-rw-r--r--erts/emulator/beam/big.h3
-rw-r--r--erts/emulator/beam/binary.c92
-rw-r--r--erts/emulator/test/hash_SUITE.erl88
-rw-r--r--erts/emulator/test/num_bif_SUITE.erl551
-rw-r--r--erts/preloaded/src/erlang.erl133
9 files changed, 1064 insertions, 394 deletions
diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml
index 5a63aaadc6..06fefa8efb 100644
--- a/erts/doc/src/erlang.xml
+++ b/erts/doc/src/erlang.xml
@@ -300,6 +300,44 @@
</desc>
</func>
<func>
+ <name name="binary_to_float" arity="1"/>
+ <fsummary>Convert from text representation to a float</fsummary>
+ <desc>
+ <p>Returns the float whose text representation is <c><anno>Binary</anno></c>.</p>
+ <pre>
+> <input>binary_to_float(&lt;&lt;"2.2017764e+0">>).</input>
+2.2017764</pre>
+ <p>Failure: <c>badarg</c> if <c><anno>Binary</anno></c> contains a bad
+ representation of a float.</p>
+ </desc>
+ </func>
+ <func>
+ <name name="binary_to_integer" arity="1"/>
+ <fsummary>Convert from text representation to an integer</fsummary>
+ <desc>
+ <p>Returns an integer whose text representation is
+ <c><anno>Binary</anno></c>.</p>
+ <pre>
+> <input>binary_to_integer(&lt;&lt;"123"&gt;&gt;).</input>
+123</pre>
+ <p>Failure: <c>badarg</c> if <c><anno>Binary</anno></c> contains a bad
+ representation of an integer.</p>
+ </desc>
+ </func>
+ <func>
+ <name name="binary_to_integer" arity="2"/>
+ <fsummary>Convert from text representation to an integer</fsummary>
+ <desc>
+ <p>Returns an integer whose text representation in base
+ <c><anno>Base</anno></c> is <c><anno>Binary</anno></c>.</p>
+ <pre>
+> <input>binary_to_integer(&lt;&lt;"3FF"&gt;&gt;, 16).</input>
+1023</pre>
+ <p>Failure: <c>badarg</c> if <c><anno>Binary</anno></c> contains a bad
+ representation of an integer.</p>
+ </desc>
+ </func>
+ <func>
<name name="binary_to_list" arity="1"/>
<fsummary>Convert a binary to a list</fsummary>
<desc>
@@ -961,26 +999,38 @@ true
</desc>
</func>
<func>
- <name name="float_to_list" arity="1"/>
+ <name name="float_to_binary" arity="1"/>
<fsummary>Text representation of a float</fsummary>
<desc>
- <p>Returns a string which corresponds to the text
- representation of <c><anno>Float</anno></c>.</p>
+ <p>The same as <c>float_to_binary(<anno>Float</anno>,[{scientific,20}])</c>.</p>
+ </desc>
+ </func>
+ <func>
+ <name name="float_to_binary" arity="2"/>
+ <fsummary>Text representation of a float formatted using given options</fsummary>
+ <desc>
+ <p>Returns a binary which corresponds to the text
+ representation of <c><anno>Float</anno></c> using fixed decimal
+ point formatting. The <c><anno>Options</anno></c> behave in the same
+ way as <seealso marker="#float_to_list/2">float_to_list/2</seealso>.
+ </p>
<pre>
-> <input>float_to_list(7.0).</input>
-"7.00000000000000000000e+00"</pre>
+> <input>float_to_binary(7.12, [{decimals, 4}]).</input>
+&lt;&lt;"7.1200">>
+> <input>float_to_binary(7.12, [{decimals, 4}, compact]).</input>
+&lt;&lt;"7.12">></pre>
</desc>
</func>
<func>
- <name>float_to_list(Float, Options) -> string()</name>
+ <name name="float_to_list" arity="1"/>
+ <fsummary>Text representation of a float</fsummary>
+ <desc>
+ <p>The same as <c>float_to_list(<anno>Float</anno>,[{scientific,20}])</c>.</p>
+ </desc>
+ </func>
+ <func>
+ <name name="float_to_list" arity="2"/>
<fsummary>Text representation of a float formatted using given options</fsummary>
- <type>
- <v>Float = float()</v>
- <v>Options = [Option]</v>
- <v>Option = {decimals, Decimals::0..253} |
- {scientific, Decimals::0..249} |
- compact</v>
- </type>
<desc>
<p>Returns a string which corresponds to the text
representation of <c>Float</c> using fixed decimal point formatting.
@@ -993,7 +1043,8 @@ true
only meaningful together with the <c>decimals</c> option). When
<c>scientific</c> option is provided, the float will be formatted using
scientific notation with <c>Decimals</c> digits of precision. If
- <c>Options</c> is <c>[]</c> the function behaves like <c>float_to_list/1</c>.
+ <c>Options</c> is <c>[]</c> the function behaves like
+ <c><seealso marker="#float_to_list/1">float_to_list/1</seealso></c>.
</p>
<pre>
> <input>float_to_list(7.12, [{decimals, 4}]).</input>
@@ -1429,7 +1480,28 @@ os_prompt% </pre>
{one,new,two,three}</pre>
</desc>
</func>
-
+ <func>
+ <name name="integer_to_binary" arity="1"/>
+ <fsummary>Text representation of an integer</fsummary>
+ <desc>
+ <p>Returns a binary which corresponds to the text
+ representation of <c><anno>Integer</anno></c>.</p>
+ <pre>
+> <input>integer_to_binary(77).</input>
+&lt;&lt;"77">></pre>
+ </desc>
+ </func>
+ <func>
+ <name name="integer_to_binary" arity="2"/>
+ <fsummary>Text representation of an integer</fsummary>
+ <desc>
+ <p>Returns a binary which corresponds to the text
+ representation of <c><anno>Integer</anno></c> in base <c><anno>Base</anno></c>.</p>
+ <pre>
+> <input>integer_to_binary(1023, 16).</input>
+&lt;&lt;"3FF">></pre>
+ </desc>
+ </func>
<func>
<name name="integer_to_list" arity="1"/>
<fsummary>Text representation of an integer</fsummary>
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index df084e1185..5adcf6d5c7 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -39,6 +39,7 @@
#include "erl_thr_progress.h"
#define ERTS_PTAB_WANT_BIF_IMPL__
#include "erl_ptab.h"
+#include "erl_bits.h"
static Export* flush_monitor_message_trap = NULL;
static Export* set_cpu_topology_trap = NULL;
@@ -2895,45 +2896,69 @@ BIF_RETTYPE string_to_integer_1(BIF_ALIST_1)
BIF_RET(TUPLE2(hp, res, tail));
}
}
-
BIF_RETTYPE list_to_integer_1(BIF_ALIST_1)
-{
+ {
+ /* Using do_list_to_integer is about twice as fast as using
+ erts_chars_to_integer because we do not have to copy the
+ entire list */
Eterm res;
Eterm dummy;
/* must be a list */
-
if (do_list_to_integer(BIF_P,BIF_ARG_1,&res,&dummy) != LTI_ALL_INTEGER) {
BIF_ERROR(BIF_P,BADARG);
}
BIF_RET(res);
}
-/**********************************************************************/
+BIF_RETTYPE list_to_integer_2(BIF_ALIST_2)
+{
-/* convert a float to a list of ascii characters */
+ /* Bif implementation is about 50% faster than pure erlang,
+ and since we have erts_chars_to_integer now it is simpler
+ as well. This could be optmized further if we did not have to
+ copy the list to buf. */
+ int i;
+ Eterm res;
+ char *buf = NULL;
+ int base;
-BIF_RETTYPE float_to_list_1(BIF_ALIST_1)
-{
- int i;
- Uint need;
- Eterm* hp;
- FloatDef f;
- char fbuf[30];
+ i = list_length(BIF_ARG_1);
+ if (i < 0)
+ BIF_ERROR(BIF_P, BADARG);
+
+ base = signed_val(BIF_ARG_2);
+
+ if (base < 2 || base > 36)
+ BIF_ERROR(BIF_P, BADARG);
+
+ /* Take fast path if base it 10 */
+ if (base == 10)
+ return list_to_integer_1(BIF_P,&BIF_ARG_1);
+
+ buf = (char *) erts_alloc(ERTS_ALC_T_TMP, i + 1);
+
+ if (intlist_to_buf(BIF_ARG_1, buf, i) < 0)
+ goto list_to_integer_1_error;
+ buf[i] = '\0'; /* null terminal */
+
+ if ((res = erts_chars_to_integer(BIF_P,buf,i,base)) == THE_NON_VALUE)
+ goto list_to_integer_1_error;
+
+ erts_free(ERTS_ALC_T_TMP, (void *) buf);
+ BIF_RET(res);
+
+ list_to_integer_1_error:
+ erts_free(ERTS_ALC_T_TMP, (void *) buf);
+ BIF_ERROR(BIF_P, BADARG);
- /* check the arguments */
- if (is_not_float(BIF_ARG_1))
- BIF_ERROR(BIF_P, BADARG);
- GET_DOUBLE(BIF_ARG_1, f);
- if ((i = sys_double_to_chars(f.fd, fbuf, sizeof(fbuf))) <= 0)
- BIF_ERROR(BIF_P, EXC_INTERNAL_ERROR);
- need = i*2;
- hp = HAlloc(BIF_P, need);
- BIF_RET(buf_to_intlist(&hp, fbuf, i, NIL));
-}
+ }
+
+/**********************************************************************/
+
+static int do_float_to_charbuf(Process *p, Eterm efloat, Eterm list,
+ char *fbuf, int sizeof_fbuf) {
-BIF_RETTYPE float_to_list_2(BIF_ALIST_2)
-{
const static int arity_two = make_arityval(2);
int decimals = SYS_DEFAULT_FLOAT_DECIMALS;
int compact = 0;
@@ -2942,16 +2967,11 @@ BIF_RETTYPE float_to_list_2(BIF_ALIST_2)
FMT_FIXED,
FMT_SCIENTIFIC
} fmt_type = FMT_LEGACY;
- Eterm list = BIF_ARG_2;
Eterm arg;
- int i;
- Uint need;
- Eterm* hp;
FloatDef f;
- char fbuf[256];
/* check the arguments */
- if (is_not_float(BIF_ARG_1))
+ if (is_not_float(efloat))
goto badarg;
for(; is_list(list); list = CDR(list_val(list))) {
@@ -2979,22 +2999,64 @@ BIF_RETTYPE float_to_list_2(BIF_ALIST_2)
goto badarg;
}
- GET_DOUBLE(BIF_ARG_1, f);
+ GET_DOUBLE(efloat, f);
if (fmt_type == FMT_FIXED) {
- if ((i = sys_double_to_chars_fast(f.fd, fbuf, sizeof(fbuf),
- decimals, compact)) <= 0)
- goto badarg;
+ return sys_double_to_chars_fast(f.fd, fbuf, sizeof_fbuf,
+ decimals, compact);
} else {
- if ((i = sys_double_to_chars_ext(f.fd, fbuf, sizeof(fbuf), decimals)) <= 0)
- goto badarg;
+ return sys_double_to_chars_ext(f.fd, fbuf, sizeof_fbuf, decimals);
}
- need = i*2;
- hp = HAlloc(BIF_P, need);
- BIF_RET(buf_to_intlist(&hp, fbuf, i, NIL));
badarg:
+ return -1;
+}
+
+/* convert a float to a list of ascii characters */
+
+static BIF_RETTYPE do_float_to_list(Process *BIF_P, Eterm arg, Eterm opts) {
+ int used;
+ Eterm* hp;
+ char fbuf[256];
+
+ if ((used = do_float_to_charbuf(BIF_P,arg,opts,fbuf,sizeof(fbuf))) <= 0) {
+ BIF_ERROR(BIF_P, BADARG);
+ }
+ hp = HAlloc(BIF_P, (Uint)used*2);
+ BIF_RET(buf_to_intlist(&hp, fbuf, (Uint)used, NIL));
+}
+
+
+BIF_RETTYPE float_to_list_1(BIF_ALIST_1)
+{
+ return do_float_to_list(BIF_P,BIF_ARG_1,NIL);
+}
+
+BIF_RETTYPE float_to_list_2(BIF_ALIST_2)
+{
+ return do_float_to_list(BIF_P,BIF_ARG_1,BIF_ARG_2);
+}
+
+/* convert a float to a binary of ascii characters */
+
+static BIF_RETTYPE do_float_to_binary(Process *BIF_P, Eterm arg, Eterm opts) {
+ int used;
+ char fbuf[256];
+
+ if ((used = do_float_to_charbuf(BIF_P,arg,opts,fbuf,sizeof(fbuf))) <= 0) {
BIF_ERROR(BIF_P, BADARG);
+ }
+ BIF_RET(new_binary(BIF_P, (byte*)fbuf, (Uint)used));
+}
+
+BIF_RETTYPE float_to_binary_1(BIF_ALIST_1)
+{
+ return do_float_to_binary(BIF_P,BIF_ARG_1,NIL);
+}
+
+BIF_RETTYPE float_to_binary_2(BIF_ALIST_2)
+{
+ return do_float_to_binary(BIF_P,BIF_ARG_1,BIF_ARG_2);
}
/**********************************************************************/
@@ -3179,36 +3241,101 @@ BIF_RETTYPE string_to_float_1(BIF_ALIST_1)
BIF_RET(tup);
}
+static BIF_RETTYPE do_charbuf_to_float(Process *BIF_P,char *buf) {
+ FloatDef f;
+ Eterm res;
+ Eterm* hp;
+
+ if (sys_chars_to_double(buf, &f.fd) != 0)
+ BIF_ERROR(BIF_P, BADARG);
+
+ hp = HAlloc(BIF_P, FLOAT_SIZE_OBJECT);
+ res = make_float(hp);
+ PUT_DOUBLE(f, hp);
+ BIF_RET(res);
+
+}
BIF_RETTYPE list_to_float_1(BIF_ALIST_1)
{
int i;
- FloatDef f;
Eterm res;
- Eterm* hp;
char *buf = NULL;
i = list_length(BIF_ARG_1);
- if (i < 0) {
- badarg:
- if (buf)
- erts_free(ERTS_ALC_T_TMP, (void *) buf);
- BIF_ERROR(BIF_P, BADARG);
- }
-
+ if (i < 0)
+ BIF_ERROR(BIF_P, BADARG);
+
buf = (char *) erts_alloc(ERTS_ALC_T_TMP, i + 1);
if (intlist_to_buf(BIF_ARG_1, buf, i) < 0)
- goto badarg;
+ goto list_to_float_1_error;
buf[i] = '\0'; /* null terminal */
+
+ if ((res = do_charbuf_to_float(BIF_P,buf)) == THE_NON_VALUE)
+ goto list_to_float_1_error;
+
+ erts_free(ERTS_ALC_T_TMP, (void *) buf);
+ BIF_RET(res);
+
+ list_to_float_1_error:
+ erts_free(ERTS_ALC_T_TMP, (void *) buf);
+ BIF_ERROR(BIF_P, BADARG);
+
+}
+
+BIF_RETTYPE binary_to_float_1(BIF_ALIST_1)
+{
+ Eterm res;
+ Eterm binary = BIF_ARG_1;
+ Sint size;
+ byte* bytes, *buf;
+ Eterm* real_bin;
+ Uint offs = 0;
+ Uint bit_offs = 0;
+
+ if (is_not_binary(binary) || (size = binary_size(binary)) == 0)
+ BIF_ERROR(BIF_P, BADARG);
+
+ /*
+ * Unfortunately we have to copy the binary because we have to insert
+ * the '\0' at the end of the binary for strtod to work
+ * (there is no nstrtod :( )
+ */
+
+ buf = erts_alloc(ERTS_ALC_T_TMP, size + 1);
+
+ real_bin = binary_val(binary);
+ if (*real_bin == HEADER_SUB_BIN) {
+ ErlSubBin* sb = (ErlSubBin *) real_bin;
+ if (sb->bitsize) {
+ goto binary_to_float_1_error;
+ }
+ offs = sb->offs;
+ bit_offs = sb->bitoffs;
+ real_bin = binary_val(sb->orig);
+ }
+ if (*real_bin == HEADER_PROC_BIN) {
+ bytes = ((ProcBin *) real_bin)->bytes + offs;
+ } else {
+ bytes = (byte *)(&(((ErlHeapBin *) real_bin)->data)) + offs;
+ }
+ if (bit_offs)
+ erts_copy_bits(bytes, bit_offs, 1, buf, 0, 1, size*8);
+ else
+ memcpy(buf, bytes, size);
+
+ buf[size] = '\0';
+
+ if ((res = do_charbuf_to_float(BIF_P,(char*)buf)) == THE_NON_VALUE)
+ goto binary_to_float_1_error;
- if (sys_chars_to_double(buf, &f.fd) != 0)
- goto badarg;
- hp = HAlloc(BIF_P, FLOAT_SIZE_OBJECT);
- res = make_float(hp);
- PUT_DOUBLE(f, hp);
erts_free(ERTS_ALC_T_TMP, (void *) buf);
BIF_RET(res);
+
+ binary_to_float_1_error:
+ erts_free(ERTS_ALC_T_TMP, (void *) buf);
+ BIF_ERROR(BIF_P, BADARG);
}
/**********************************************************************/
diff --git a/erts/emulator/beam/bif.tab b/erts/emulator/beam/bif.tab
index e313188901..b74dc5c3fe 100644
--- a/erts/emulator/beam/bif.tab
+++ b/erts/emulator/beam/bif.tab
@@ -561,6 +561,13 @@ bif erlang:prepare_loading/2
bif erlang:finish_loading/1
bif erlang:insert_element/3
bif erlang:delete_element/2
+bif erlang:binary_to_integer/1
+bif erlang:binary_to_integer/2
+bif erlang:integer_to_binary/1
+bif erlang:list_to_integer/2
+bif erlang:float_to_binary/1
+bif erlang:float_to_binary/2
+bif erlang:binary_to_float/1
#
# Obsolete
diff --git a/erts/emulator/beam/big.c b/erts/emulator/beam/big.c
index 5a5b162b9c..acfcc845e4 100644
--- a/erts/emulator/beam/big.c
+++ b/erts/emulator/beam/big.c
@@ -1674,26 +1674,26 @@ int big_decimal_estimate(Wterm x)
** Convert a bignum into a string of decimal numbers
*/
-static void write_big(Wterm x, void (*write_func)(void *, char), void *arg)
+static Uint write_big(Wterm x, void (*write_func)(void *, char), void *arg)
{
Eterm* xp = big_val(x);
ErtsDigit* dx = BIG_V(xp);
dsize_t xl = BIG_SIZE(xp);
short sign = BIG_SIGN(xp);
ErtsDigit rem;
+ Uint n = 0;
if (xl == 1 && *dx < D_DECIMAL_BASE) {
rem = *dx;
- if (rem == 0)
- (*write_func)(arg, '0');
- else {
+ if (rem == 0) {
+ (*write_func)(arg, '0'); n++;
+ } else {
while(rem) {
- (*write_func)(arg, (rem % 10) + '0');
+ (*write_func)(arg, (rem % 10) + '0'); n++;
rem /= 10;
}
}
- }
- else {
+ } else {
ErtsDigit* tmp = (ErtsDigit*) erts_alloc(ERTS_ALC_T_TMP,
sizeof(ErtsDigit)*xl);
dsize_t tmpl = xl;
@@ -1704,15 +1704,14 @@ static void write_big(Wterm x, void (*write_func)(void *, char), void *arg)
tmpl = D_div(tmp, tmpl, D_DECIMAL_BASE, tmp, &rem);
if (tmpl == 1 && *tmp == 0) {
while(rem) {
- (*write_func)(arg, (rem % 10)+'0');
+ (*write_func)(arg, (rem % 10)+'0'); n++;
rem /= 10;
}
break;
- }
- else {
+ } else {
int i = D_DECIMAL_EXP;
while(i--) {
- (*write_func)(arg, (rem % 10)+'0');
+ (*write_func)(arg, (rem % 10)+'0'); n++;
rem /= 10;
}
}
@@ -1720,8 +1719,10 @@ static void write_big(Wterm x, void (*write_func)(void *, char), void *arg)
erts_free(ERTS_ALC_T_TMP, (void *) tmp);
}
- if (sign)
- (*write_func)(arg, '-');
+ if (sign) {
+ (*write_func)(arg, '-'); n++;
+ }
+ return n;
}
struct big_list__ {
@@ -1762,6 +1763,20 @@ char *erts_big_to_string(Wterm x, char *buf, Uint buf_sz)
return big_str;
}
+/* Bignum to binary bytes
+ * e.g. 1 bsl 64 -> "18446744073709551616"
+ */
+
+Uint erts_big_to_binary_bytes(Eterm x, char *buf, Uint buf_sz)
+{
+ char *big_str = buf + buf_sz;
+ Uint n;
+ n = write_big(x, write_string, (void *) &big_str);
+ ASSERT(buf <= big_str && big_str <= buf + buf_sz);
+ return n;
+}
+
+
/*
** Normalize a bignum given thing pointer length in digits and a sign
** patch zero if odd length
@@ -2467,3 +2482,209 @@ int term_equals_2pow32(Eterm x)
return 0;
}
}
+
+
+#define IS_VALID_CHARACTER(CHAR,BASE) \
+ (CHAR < '0' \
+ || (CHAR > ('0' + BASE - 1) \
+ && !(BASE > 10 \
+ && ((CHAR >= 'a' && CHAR < ('a' + BASE - 10)) \
+ || (CHAR >= 'A' && CHAR < ('A' + BASE - 10))))))
+#define CHARACTER_FROM_BASE(CHAR) \
+ ((CHAR <= '9') ? CHAR - '0' : 10 + ((CHAR <= 'Z') ? CHAR - 'A' : CHAR - 'a'))
+#define D_BASE_EXP(BASE) (d_base_exp_lookup[BASE-2])
+#define D_BASE_BASE(BASE) (d_base_base_lookup[BASE-2])
+#define LG2_LOOKUP(BASE) (lg2_lookup[base-2])
+
+/*
+ * for i in 2..64 do
+ * lg2_lookup[i-2] = log2(i)
+ * end
+ * How many bits are needed to store string of size n
+ */
+const double lg2_lookup[] = { 1.0, 1.58496, 2, 2.32193, 2.58496, 2.80735, 3.0,
+ 3.16993, 3.32193, 3.45943, 3.58496, 3.70044, 3.80735, 3.90689, 4.0,
+ 4.08746, 4.16993, 4.24793, 4.32193, 4.39232, 4.45943, 4.52356, 4.58496,
+ 4.64386, 4.70044, 4.75489, 4.80735, 4.85798, 4.90689, 4.9542, 5.0,
+ 5.04439, 5.08746, 5.12928, 5.16993, 5.20945, 5.24793, 5.2854, 5.32193,
+ 5.35755, 5.39232, 5.42626, 5.45943, 5.49185, 5.52356, 5.55459, 5.58496,
+ 5.61471, 5.64386, 5.67243, 5.70044, 5.72792, 5.75489, 5.78136, 5.80735,
+ 5.83289, 5.85798, 5.88264, 5.90689, 5.93074, 5.9542, 5.97728, 6.0 };
+
+/*
+ * for i in 2..64 do
+ * d_base_exp_lookup[i-2] = 31 / lg2_lookup[i-2];
+ * end
+ * How many characters can fit in 31 bits
+ */
+const byte d_base_exp_lookup[] = { 31, 19, 15, 13, 11, 11, 10, 9, 9, 8, 8, 8, 8,
+ 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5,
+ 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5,
+ 5, 5 };
+
+/*
+ * for i in 2..64 do
+ * d_base_base_lookup[i-2] = pow(i,d_base_exp_lookup[i-2]);
+ * end
+ * How much can the characters which fit in 31 bit represent
+ */
+const Uint d_base_base_lookup[] = { 2147483648, 1162261467, 1073741824,
+ 1220703125, 362797056, 1977326743, 1073741824, 387420489, 1000000000,
+ 214358881, 429981696, 815730721, 1475789056, 170859375, 268435456,
+ 410338673, 612220032, 893871739, 1280000000, 1801088541, 113379904,
+ 148035889, 191102976, 244140625, 308915776, 387420489, 481890304,
+ 594823321, 729000000, 887503681, 1073741824, 1291467969, 1544804416,
+ 1838265625, 60466176, 69343957, 79235168, 90224199, 102400000,
+ 115856201, 130691232, 147008443, 164916224, 184528125, 205962976,
+ 229345007, 254803968, 282475249, 312500000, 345025251, 380204032,
+ 418195493, 459165024, 503284375, 550731776, 601692057, 656356768,
+ 714924299, 777600000, 844596301, 916132832, 992436543, 1073741824 };
+
+Eterm erts_chars_to_integer(Process *BIF_P, char *bytes,
+ Uint size, const int base) {
+ Eterm res;
+ Sint i = 0;
+ int n = 0;
+ int neg = 0;
+ byte b;
+ Eterm *hp, *hp_end;
+ int m;
+ int lg2;
+
+ if (size == 0)
+ goto bytebuf_to_integer_1_error;
+
+ if (bytes[0] == '-') {
+ neg = 1;
+ bytes++;
+ size--;
+
+ } else if (bytes[0] == '+') {
+ bytes++;
+ size--;
+ }
+
+ if (size < SMALL_DIGITS && base <= 10) {
+ /* *
+ * Take shortcut if we know that all chars are '0' < b < '9' and
+ * fit in a small. This improves speed by about 10% over the generic
+ * small case.
+ * */
+ while (size--) {
+ b = *bytes++;
+
+ if (b < '0' || b > ('0'+base-1))
+ goto bytebuf_to_integer_1_error;
+
+ i = i * base + b - '0';
+ }
+
+ if (neg)
+ i = -i;
+ res = make_small(i);
+ goto bytebuf_to_integer_1_done;
+ }
+
+ /*
+ * Calculate the maximum number of bits which will
+ * be needed to represent the binary
+ */
+ lg2 = ((size+2)*LG2_LOOKUP(base)+1);
+
+ if (lg2 < SMALL_BITS) {
+ /* Take shortcut if we know it will fit in a small.
+ * This improves speed by about 30%.
+ */
+ while (size) {
+ b = *bytes++;
+ size--;
+
+ if (IS_VALID_CHARACTER(b,base))
+ goto bytebuf_to_integer_1_error;
+
+ i = i * base + CHARACTER_FROM_BASE(b);
+
+ }
+
+ if (neg)
+ i = -i;
+ res = make_small(i);
+ goto bytebuf_to_integer_1_done;
+
+ }
+
+ /* Start calculating bignum */
+ m = (lg2 + D_EXP-1)/D_EXP;
+ m = BIG_NEED_SIZE(m);
+
+ hp = HAlloc(BIF_P, m);
+ hp_end = hp + m;
+
+ if ((i = (size % D_BASE_EXP(base))) == 0)
+ i = D_BASE_EXP(base);
+
+ n = size - i;
+ m = 0;
+
+ while (i--) {
+ b = *bytes++;
+
+ if (IS_VALID_CHARACTER(b,base)) {
+ HRelease(BIF_P, hp_end, hp);
+ goto bytebuf_to_integer_1_error;
+ }
+
+ m = base * m + CHARACTER_FROM_BASE(b);
+ }
+
+ res = small_to_big(m, hp);
+
+ while (n) {
+ i = D_BASE_EXP(base);
+ n -= D_BASE_EXP(base);
+ m = 0;
+ while (i--) {
+ b = *bytes++;
+
+ if (IS_VALID_CHARACTER(b,base)) {
+ HRelease(BIF_P, hp_end, hp);
+ goto bytebuf_to_integer_1_error;
+ }
+
+ m = base * m + CHARACTER_FROM_BASE(b);
+ }
+ if (is_small(res)) {
+ res = small_to_big(signed_val(res), hp);
+ }
+ res = big_times_small(res, D_BASE_BASE(base), hp);
+ if (is_small(res)) {
+ res = small_to_big(signed_val(res), hp);
+ }
+ res = big_plus_small(res, m, hp);
+ }
+
+ if (is_big(res)) /* check if small */
+ res = big_plus_small(res, 0, hp); /* includes conversion to small */
+
+ if (neg) {
+ if (is_small(res))
+ res = make_small(-signed_val(res));
+ else {
+ Uint *big = big_val(res); /* point to thing */
+ *big = bignum_header_neg(*big);
+ }
+ }
+
+ if (is_big(res)) {
+ hp += (big_arity(res) + 1);
+ }
+ HRelease(BIF_P, hp_end, hp);
+ goto bytebuf_to_integer_1_done;
+
+bytebuf_to_integer_1_error:
+ return THE_NON_VALUE;
+
+bytebuf_to_integer_1_done:
+ return res;
+
+}
diff --git a/erts/emulator/beam/big.h b/erts/emulator/beam/big.h
index 7eb1e5afe2..c74283b9e5 100644
--- a/erts/emulator/beam/big.h
+++ b/erts/emulator/beam/big.h
@@ -117,6 +117,7 @@ typedef Uint dsize_t; /* Vector size type */
int big_decimal_estimate(Wterm);
Eterm erts_big_to_list(Eterm, Eterm**);
char *erts_big_to_string(Wterm x, char *buf, Uint buf_sz);
+Uint erts_big_to_binary_bytes(Eterm x, char *buf, Uint buf_sz);
Eterm small_times(Sint, Sint, Eterm*);
@@ -165,5 +166,7 @@ int term_equals_2pow32(Eterm);
Eterm erts_uint64_to_big(Uint64, Eterm **);
Eterm erts_sint64_to_big(Sint64, Eterm **);
+Eterm erts_chars_to_integer(Process *, char*, Uint, const int);
+
#endif
diff --git a/erts/emulator/beam/binary.c b/erts/emulator/beam/binary.c
index dad13f1067..33abac2f3d 100644
--- a/erts/emulator/beam/binary.c
+++ b/erts/emulator/beam/binary.c
@@ -240,6 +240,98 @@ erts_bin_bytes_to_list(Eterm previous, Eterm* hp, byte* bytes, Uint size, Uint b
return previous;
}
+BIF_RETTYPE binary_to_integer_1(BIF_ALIST_1)
+{
+ byte *temp_alloc = NULL;
+ char *bytes;
+ Uint size;
+ Eterm res;
+
+ if ((bytes = (char*)erts_get_aligned_binary_bytes(BIF_ARG_1, &temp_alloc))
+ == NULL )
+ goto binary_to_integer_1_error;
+
+ size = binary_size(BIF_ARG_1);
+
+ if ((res = erts_chars_to_integer(BIF_P,bytes,size,10)) != THE_NON_VALUE) {
+ erts_free_aligned_binary_bytes(temp_alloc);
+ return res;
+ }
+
+ binary_to_integer_1_error:
+ erts_free_aligned_binary_bytes(temp_alloc);
+ BIF_ERROR(BIF_P, BADARG);
+}
+
+BIF_RETTYPE binary_to_integer_2(BIF_ALIST_2)
+{
+ byte *temp_alloc = NULL;
+ char *bytes;
+ Uint size;
+ int base;
+ Eterm res;
+
+ if (!is_small(BIF_ARG_2))
+ BIF_ERROR(BIF_P, BADARG);
+
+ base = signed_val(BIF_ARG_2);
+
+ if (base < 2 || base > 36)
+ BIF_ERROR(BIF_P, BADARG);
+
+ if ((bytes = (char*)erts_get_aligned_binary_bytes(BIF_ARG_1, &temp_alloc))
+ == NULL )
+ goto binary_to_integer_2_error;
+
+ size = binary_size(BIF_ARG_1);
+
+ if ((res = erts_chars_to_integer(BIF_P,bytes,size,base)) != THE_NON_VALUE) {
+ erts_free_aligned_binary_bytes(temp_alloc);
+ return res;
+ }
+
+ binary_to_integer_2_error:
+
+ erts_free_aligned_binary_bytes(temp_alloc);
+ BIF_ERROR(BIF_P, BADARG);
+
+}
+
+BIF_RETTYPE integer_to_binary_1(BIF_ALIST_1)
+{
+ Uint size;
+ Eterm res;
+
+ if (is_not_integer(BIF_ARG_1)) {
+ BIF_ERROR(BIF_P, BADARG);
+ }
+
+ if (is_small(BIF_ARG_1)) {
+ char *c;
+ struct Sint_buf ibuf;
+
+ /* Enhancement: If we can calculate the buffer size exactly
+ * we could avoid an unnecessary copy of buffers.
+ * Useful if size determination is faster than a copy.
+ */
+ c = Sint_to_buf(signed_val(BIF_ARG_1), &ibuf);
+ size = sys_strlen(c);
+ res = new_binary(BIF_P, (byte *)c, size);
+ } else {
+ byte* bytes;
+ Uint n = 0;
+
+ /* Here we also have multiple copies of buffers
+ * due to new_binary interface
+ */
+ size = big_decimal_estimate(BIF_ARG_1) - 1; /* remove null */
+ bytes = (byte*) erts_alloc(ERTS_ALC_T_TMP, sizeof(byte)*size);
+ n = erts_big_to_binary_bytes(BIF_ARG_1, (char *)bytes, size);
+ res = new_binary(BIF_P, bytes + size - n, n);
+ erts_free(ERTS_ALC_T_TMP, (void *) bytes);
+ }
+ BIF_RET(res);
+}
BIF_RETTYPE binary_to_list_1(BIF_ALIST_1)
{
diff --git a/erts/emulator/test/hash_SUITE.erl b/erts/emulator/test/hash_SUITE.erl
index 830ed91da9..898eae8c15 100644
--- a/erts/emulator/test/hash_SUITE.erl
+++ b/erts/emulator/test/hash_SUITE.erl
@@ -75,7 +75,7 @@ config(priv_dir,_) ->
test_phash2/1,otp_5292/1,bit_level_binaries/1,otp_7127/1,
end_per_testcase/2,init_per_testcase/2]).
init_per_testcase(_Case, Config) ->
- ?line Dog=test_server:timetrap(test_server:minutes(10)),
+ Dog=test_server:timetrap(test_server:minutes(10)),
[{watchdog, Dog}|Config].
end_per_testcase(_Case, Config) ->
@@ -169,24 +169,24 @@ otp_7127(Config) when is_list(Config) ->
%% define -DSTANDALONE when compiling.
%%
basic_test() ->
- ?line 685556714 = erlang:phash({a,b,c},16#FFFFFFFF),
- ?line 14468079 = erlang:hash({a,b,c},16#7FFFFFF),
- ?line 37442646 = erlang:phash([a,b,c,{1,2,3},c:pid(0,2,3),
+ 685556714 = erlang:phash({a,b,c},16#FFFFFFFF),
+ 14468079 = erlang:hash({a,b,c},16#7FFFFFF),
+ 37442646 = erlang:phash([a,b,c,{1,2,3},c:pid(0,2,3),
16#77777777777777],16#FFFFFFFF),
- ?line Comment = case erlang:hash([a,b,c,{1,2,3},c:pid(0,2,3),
+ Comment = case erlang:hash([a,b,c,{1,2,3},c:pid(0,2,3),
16#77777777777777],16#7FFFFFF) of
102727602 ->
- ?line big = erlang:system_info(endian),
+ big = erlang:system_info(endian),
"Big endian machine";
105818829 ->
- ?line little = erlang:system_info(endian),
+ little = erlang:system_info(endian),
"Little endian machine"
end,
ExternalReference = <<131,114,0,3,100,0,13,110,111,110,111,100,101,64,
110,111,104,111,115,116,0,0,0,0,122,0,0,0,0,0,0,0,0>>,
- ?line 1113403635 = erlang:phash(binary_to_term(ExternalReference),
+ 1113403635 = erlang:phash(binary_to_term(ExternalReference),
16#FFFFFFFF),
- ?line 123 = erlang:hash(binary_to_term(ExternalReference),
+ 123 = erlang:hash(binary_to_term(ExternalReference),
16#7FFFFFF),
ExternalFun = <<131,117,0,0,0,3,103,100,0,13,110,111,110,111,100,101,64,
110,111,104,111,115,116,0,0,0,38,0,0,0,0,0,100,0,8,101,
@@ -204,9 +204,9 @@ basic_test() ->
104,101,108,108,100,0,10,108,111,99,97,108,95,102,117,
110,99,108,0,0,0,1,103,100,0,13,110,111,110,111,100,101,
64,110,111,104,111,115,116,0,0,0,22,0,0,0,0,0,106>>,
- ?line 170987488 = erlang:phash(binary_to_term(ExternalFun),
+ 170987488 = erlang:phash(binary_to_term(ExternalFun),
16#FFFFFFFF),
- ?line 124460689 = erlang:hash(binary_to_term(ExternalFun),
+ 124460689 = erlang:hash(binary_to_term(ExternalFun),
16#7FFFFFF),
case (catch erlang:phash(1,0)) of
{'EXIT',{badarg, _}} ->
@@ -237,23 +237,23 @@ range_test() ->
spread_test(N) ->
- ?line test_fun(N,{erlang,phash},16#50000000000,fun(X) ->
+ test_fun(N,{erlang,phash},16#50000000000,fun(X) ->
X
end),
- ?line test_fun(N,{erlang,phash},0,fun(X) ->
+ test_fun(N,{erlang,phash},0,fun(X) ->
X
end),
- ?line test_fun(N,{erlang,phash},16#123456789ABCDEF123456789ABCDEF,fun(X) ->
+ test_fun(N,{erlang,phash},16#123456789ABCDEF123456789ABCDEF,fun(X) ->
X
end),
- ?line test_fun(N,{erlang,phash},16#50000000000,fun(X) ->
+ test_fun(N,{erlang,phash},16#50000000000,fun(X) ->
integer_to_list(X)
end),
- ?line test_fun(N,{erlang,phash},16#50000000000,fun(X) ->
+ test_fun(N,{erlang,phash},16#50000000000,fun(X) ->
integer_to_bytelist(X,[])
end),
- ?line test_fun(N,{erlang,phash},16#50000000000,fun(X) ->
- integer_to_binary(X)
+ test_fun(N,{erlang,phash},16#50000000000,fun(X) ->
+ integer_to_binary_value(X)
end).
@@ -265,14 +265,14 @@ cmp_test(N) ->
do_cmp_hashes(0,_) ->
ok;
do_cmp_hashes(N,Steps) ->
- ?line R0 = random:uniform(1 bsl Steps - 1) + random:uniform(16#FFFFFFFF),
- ?line R = case random:uniform(2) of
+ R0 = random:uniform(1 bsl Steps - 1) + random:uniform(16#FFFFFFFF),
+ R = case random:uniform(2) of
1 ->
R0;
_ ->
-R0
end,
- ?line NSteps = case N rem 10 of
+ NSteps = case N rem 10 of
0 ->
case (Steps + 8) rem 1024 of
0 ->
@@ -283,9 +283,9 @@ do_cmp_hashes(N,Steps) ->
_ ->
Steps
end,
- ?line X = erlang:phash(R,16#FFFFFFFF),
- ?line Y = make_hash(R,16#FFFFFFFF),
- ?line case X =:= Y of
+ X = erlang:phash(R,16#FFFFFFFF),
+ Y = make_hash(R,16#FFFFFFFF),
+ case X =:= Y of
true ->
do_cmp_hashes(N - 1, NSteps);
_ ->
@@ -469,8 +469,8 @@ phash2_test() ->
SpecFun = fun(S) -> sofs:no_elements(S) > 1 end,
F = sofs:relation_to_family(sofs:converse(sofs:relation(L))),
D = sofs:to_external(sofs:family_specification(SpecFun, F)),
- ?line [] = D,
- ?line [] = [{E,H,H2} || {E,H} <- L, (H2 = erlang:phash2(E, Max)) =/= H],
+ [] = D,
+ [] = [{E,H,H2} || {E,H} <- L, (H2 = erlang:phash2(E, Max)) =/= H],
ok.
-ifdef(FALSE).
@@ -497,17 +497,17 @@ otp_5292_test() ->
end,
S2 = md5([md5(hash_int(S, E, PH)) || {Start, N, Sz} <- d(),
{S, E} <- int(Start, N, Sz)]),
- ?line Comment = case S1 of
+ Comment = case S1 of
<<4,248,208,156,200,131,7,1,173,13,239,173,112,81,16,174>> ->
- ?line big = erlang:system_info(endian),
+ big = erlang:system_info(endian),
"Big endian machine";
<<180,28,33,231,239,184,71,125,76,47,227,241,78,184,176,233>> ->
- ?line little = erlang:system_info(endian),
+ little = erlang:system_info(endian),
"Little endian machine"
end,
- ?line <<124,81,198,121,174,233,19,137,10,83,33,80,226,111,238,99>> = S2,
- ?line 2 = erlang:hash(1, (1 bsl 27) -1),
- ?line {'EXIT', _} = (catch erlang:hash(1, (1 bsl 27))),
+ <<124,81,198,121,174,233,19,137,10,83,33,80,226,111,238,99>> = S2,
+ 2 = erlang:hash(1, (1 bsl 27) -1),
+ {'EXIT', _} = (catch erlang:hash(1, (1 bsl 27))),
{comment, Comment}.
d() ->
@@ -528,21 +528,21 @@ md5(T) ->
erlang:md5(term_to_binary(T)).
bit_level_binaries() ->
- ?line [3511317,7022633,14044578,28087749,56173436,112344123,90467083|_] =
+ [3511317,7022633,14044578,28087749,56173436,112344123,90467083|_] =
bit_level_all_different(fun erlang:hash/2),
- ?line [3511317,7022633,14044578,28087749,56173436,112344123,90467083|_] =
+ [3511317,7022633,14044578,28087749,56173436,112344123,90467083|_] =
bit_level_all_different(fun erlang:phash/2),
- ?line [102233154,19716,102133857,4532024,123369135,24565730,109558721|_] =
+ [102233154,19716,102133857,4532024,123369135,24565730,109558721|_] =
bit_level_all_different(fun erlang:phash2/2),
- ?line 13233341 = test_hash_phash(<<42:7>>, 16#7FFFFFF),
- ?line 79121243 = test_hash_phash(<<99:7>>, 16#7FFFFFF),
- ?line 95517726 = test_hash_phash(<<16#378ABF73:31>>, 16#7FFFFFF),
+ 13233341 = test_hash_phash(<<42:7>>, 16#7FFFFFF),
+ 79121243 = test_hash_phash(<<99:7>>, 16#7FFFFFF),
+ 95517726 = test_hash_phash(<<16#378ABF73:31>>, 16#7FFFFFF),
- ?line 64409098 = test_phash2(<<99:7>>, 16#7FFFFFF),
- ?line 55555814 = test_phash2(<<123,19:2>>, 16#7FFFFFF),
- ?line 83868582 = test_phash2(<<123,45,6:3>>, 16#7FFFFFF),
- ?line 2123204 = test_phash2(<<123,45,7:3>>, 16#7FFFFFF),
+ 64409098 = test_phash2(<<99:7>>, 16#7FFFFFF),
+ 55555814 = test_phash2(<<123,19:2>>, 16#7FFFFFF),
+ 83868582 = test_phash2(<<123,45,6:3>>, 16#7FFFFFF),
+ 2123204 = test_phash2(<<123,45,7:3>>, 16#7FFFFFF),
ok.
@@ -579,7 +579,7 @@ test_phash2(Bitstr, Rem) ->
otp_7127_test() ->
%% Used to return 2589127136.
- ?line 38990304 = erlang:phash2(<<"Scott9">>),
+ 38990304 = erlang:phash2(<<"Scott9">>),
ok.
%%
@@ -711,7 +711,7 @@ collect_hits() ->
init_table(),
N.
-integer_to_binary(N) ->
+integer_to_binary_value(N) ->
list_to_binary(lists:reverse(integer_to_bytelist(N,[]))).
integer_to_bytelist(0,Acc) ->
diff --git a/erts/emulator/test/num_bif_SUITE.erl b/erts/emulator/test/num_bif_SUITE.erl
index c625e655ce..b92a0e2059 100644
--- a/erts/emulator/test/num_bif_SUITE.erl
+++ b/erts/emulator/test/num_bif_SUITE.erl
@@ -31,24 +31,28 @@
%% list_to_integer/1
%% round/1
%% trunc/1
-
--export([all/0, suite/0,groups/0,init_per_suite/1, end_per_suite/1,
- init_per_group/2,end_per_group/2, t_abs/1, t_float/1,
- t_float_to_list/1, t_integer_to_list/1,
- t_list_to_integer/1,
- t_list_to_float_safe/1, t_list_to_float_risky/1,
- t_round/1, t_trunc/1]).
+%% integer_to_binary/1
+%% integer_to_binary/2
+%% binary_to_integer/1
+
+-export([all/0, suite/0, groups/0, init_per_suite/1, end_per_suite/1,
+ init_per_group/2, end_per_group/2, t_abs/1, t_float/1,
+ t_float_to_string/1, t_integer_to_string/1,
+ t_string_to_integer/1,
+ t_string_to_float_safe/1, t_string_to_float_risky/1,
+ t_round/1, t_trunc/1
+ ]).
suite() -> [{ct_hooks,[ts_install_cth]}].
all() ->
- [t_abs, t_float, t_float_to_list, t_integer_to_list,
- {group, t_list_to_float}, t_list_to_integer, t_round,
+ [t_abs, t_float, t_float_to_string, t_integer_to_string,
+ {group, t_string_to_float}, t_string_to_integer, t_round,
t_trunc].
groups() ->
- [{t_list_to_float, [],
- [t_list_to_float_safe, t_list_to_float_risky]}].
+ [{t_string_to_float, [],
+ [t_string_to_float_safe, t_string_to_float_risky]}].
init_per_suite(Config) ->
Config.
@@ -65,273 +69,382 @@ end_per_group(_GroupName, Config) ->
t_abs(Config) when is_list(Config) ->
%% Floats.
- ?line 5.5 = abs(id(5.5)),
- ?line 0.0 = abs(id(0.0)),
- ?line 100.0 = abs(id(-100.0)),
+ 5.5 = abs(id(5.5)),
+ 0.0 = abs(id(0.0)),
+ 100.0 = abs(id(-100.0)),
%% Integers.
- ?line 5 = abs(id(5)),
- ?line 0 = abs(id(0)),
- ?line 100 = abs(id(-100)),
+ 5 = abs(id(5)),
+ 0 = abs(id(0)),
+ 100 = abs(id(-100)),
%% The largest smallnum. OTP-3190.
- ?line X = id((1 bsl 27) - 1),
- ?line X = abs(X),
- ?line X = abs(X-1)+1,
- ?line X = abs(X+1)-1,
- ?line X = abs(-X),
- ?line X = abs(-X-1)-1,
- ?line X = abs(-X+1)+1,
+ X = id((1 bsl 27) - 1),
+ X = abs(X),
+ X = abs(X-1)+1,
+ X = abs(X+1)-1,
+ X = abs(-X),
+ X = abs(-X-1)-1,
+ X = abs(-X+1)+1,
%% Bignums.
BigNum = id(13984792374983749),
- ?line BigNum = abs(BigNum),
- ?line BigNum = abs(-BigNum),
+ BigNum = abs(BigNum),
+ BigNum = abs(-BigNum),
ok.
t_float(Config) when is_list(Config) ->
- ?line 0.0 = float(id(0)),
- ?line 2.5 = float(id(2.5)),
- ?line 0.0 = float(id(0.0)),
- ?line -100.55 = float(id(-100.55)),
- ?line 42.0 = float(id(42)),
- ?line -100.0 = float(id(-100)),
+ 0.0 = float(id(0)),
+ 2.5 = float(id(2.5)),
+ 0.0 = float(id(0.0)),
+ -100.55 = float(id(-100.55)),
+ 42.0 = float(id(42)),
+ -100.0 = float(id(-100)),
%% Bignums.
- ?line 4294967305.0 = float(id(4294967305)),
- ?line -4294967305.0 = float(id(-4294967305)),
+ 4294967305.0 = float(id(4294967305)),
+ -4294967305.0 = float(id(-4294967305)),
%% Extremly big bignums.
- ?line Big = id(list_to_integer(id(lists:duplicate(2000, $1)))),
- ?line {'EXIT', {badarg, _}} = (catch float(Big)),
-
- %% Invalid types and lists.
- ?line {'EXIT', {badarg, _}} = (catch list_to_integer(id(atom))),
- ?line {'EXIT', {badarg, _}} = (catch list_to_integer(id(123))),
- ?line {'EXIT', {badarg, _}} = (catch list_to_integer(id([$1,[$2]]))),
- ?line {'EXIT', {badarg, _}} = (catch list_to_integer(id("1.2"))),
- ?line {'EXIT', {badarg, _}} = (catch list_to_integer(id("a"))),
- ?line {'EXIT', {badarg, _}} = (catch list_to_integer(id(""))),
+ Big = id(list_to_integer(id(lists:duplicate(2000, $1)))),
+ {'EXIT', {badarg, _}} = (catch float(Big)),
+
ok.
-%% Tests float_to_list/1, float_to_list/2.
-
-t_float_to_list(Config) when is_list(Config) ->
- test_ftl("0.0e+0", 0.0),
- test_ftl("2.5e+1", 25.0),
- test_ftl("2.5e+0", 2.5),
- test_ftl("2.5e-1", 0.25),
- test_ftl("-3.5e+17", -350.0e15),
- "1.00000000000000000000e+00" = float_to_list(1.0),
- "1.00000000000000000000e+00" = float_to_list(1.0, []),
- "-1.00000000000000000000e+00" = float_to_list(-1.0, []),
- "-1.00000000000000000000" = float_to_list(-1.0, [{decimals, 20}]),
- {'EXIT', {badarg, _}} = (catch float_to_list(1.0, [{decimals, -1}])),
- {'EXIT', {badarg, _}} = (catch float_to_list(1.0, [{decimals, 254}])),
- {'EXIT', {badarg, _}} = (catch float_to_list(1.0, [{scientific, 250}])),
- {'EXIT', {badarg, _}} = (catch float_to_list(1.0e+300, [{decimals, 1}])),
- "1.0e+300" = float_to_list(1.0e+300, [{scientific, 1}]),
- "1.0" = float_to_list(1.0, [{decimals, 249}, compact]),
- "1" = float_to_list(1.0, [{decimals, 0}]),
- "2" = float_to_list(1.9, [{decimals, 0}]),
- "123456789012345680.0" = erlang:float_to_list(
- 123456789012345678.0, [{decimals, 236}, compact]),
- {'EXIT', {badarg, _}} = (catch float_to_list(
- 123456789012345678.0, [{decimals, 237}])),
- Expected = "1." ++ string:copies("0", 249) ++ "e+00",
- Expected = float_to_list(1.0, [{scientific, 249}, compact]),
+%% Tests float_to_list/1, float_to_list/2, float_to_binary/1, float_to_binary/2
+
+t_float_to_string(Config) when is_list(Config) ->
+ test_fts("0.00000000000000000000e+00", 0.0),
+ test_fts("2.50000000000000000000e+01", 25.0),
+ test_fts("2.50000000000000000000e+00", 2.5),
+ test_fts("2.50000000000000000000e-01", 0.25),
+ test_fts("-3.50000000000000000000e+17", -350.0e15),
+ test_fts("1.00000000000000000000e+00",1.0),
+ test_fts("1.00000000000000000000e+00",1.0, []),
+ test_fts("-1.00000000000000000000e+00",-1.0, []),
+ test_fts("-1.00000000000000000000",-1.0, [{decimals, 20}]),
+ {'EXIT', {badarg, _}} = (catch float_to_list(1.0, [{decimals, -1}])),
+ {'EXIT', {badarg, _}} = (catch float_to_list(1.0, [{decimals, 254}])),
+ {'EXIT', {badarg, _}} = (catch float_to_list(1.0, [{scientific, 250}])),
+ {'EXIT', {badarg, _}} = (catch float_to_list(1.0e+300, [{decimals, 1}])),
+ {'EXIT', {badarg, _}} = (catch float_to_binary(1.0, [{decimals, -1}])),
+ {'EXIT', {badarg, _}} = (catch float_to_binary(1.0, [{decimals, 254}])),
+ {'EXIT', {badarg, _}} = (catch float_to_binary(1.0, [{scientific, 250}])),
+ {'EXIT', {badarg, _}} = (catch float_to_binary(1.0e+300, [{decimals, 1}])),
+ test_fts("1.0e+300",1.0e+300, [{scientific, 1}]),
+ test_fts("1.0",1.0, [{decimals, 249}, compact]),
+ test_fts("1",1.0,[{decimals,0}]),
+ test_fts("2",1.9,[{decimals,0}]),
+ test_fts("123456789012345680.0",123456789012345678.0,
+ [{decimals, 236}, compact]),
+ {'EXIT', {badarg, _}} = (catch float_to_list(
+ 123456789012345678.0, [{decimals, 237}])),
+ {'EXIT', {badarg, _}} = (catch float_to_binary(
+ 123456789012345678.0, [{decimals, 237}])),
+ test_fts("1." ++ string:copies("0", 249) ++ "e+00",
+ 1.0, [{scientific, 249}, compact]),
X1 = float_to_list(1.0),
X2 = float_to_list(1.0, [{scientific, 20}]),
X1 = X2,
- "1.000e+00" = float_to_list(1.0, [{scientific, 3}]),
- "1.000" = float_to_list(1.0, [{decimals, 3}]),
- "1.0" = float_to_list(1.0, [{decimals, 1}]),
- "1.0" = float_to_list(1.0, [{decimals, 3}, compact]),
- "1.12" = float_to_list(1.123, [{decimals, 2}]),
- "1.123" = float_to_list(1.123, [{decimals, 3}]),
- "1.123" = float_to_list(1.123, [{decimals, 3}, compact]),
- "1.1230" = float_to_list(1.123, [{decimals, 4}]),
- "1.12300" = float_to_list(1.123, [{decimals, 5}]),
- "1.123" = float_to_list(1.123, [{decimals, 5}, compact]),
- "1.1234" = float_to_list(1.1234,[{decimals, 6}, compact]),
- "1.01" = float_to_list(1.005, [{decimals, 2}]),
- "-1.01" = float_to_list(-1.005,[{decimals, 2}]),
- "0.999" = float_to_list(0.999, [{decimals, 3}]),
- "-0.999" = float_to_list(-0.999,[{decimals, 3}]),
- "1.0" = float_to_list(0.999, [{decimals, 2}, compact]),
- "-1.0" = float_to_list(-0.999,[{decimals, 2}, compact]),
- "0.5" = float_to_list(0.5, [{decimals, 1}]),
- "-0.5" = float_to_list(-0.5, [{decimals, 1}]),
+
+ Y1 = float_to_binary(1.0),
+ Y2 = float_to_binary(1.0, [{scientific, 20}]),
+ Y1 = Y2,
+
+ test_fts("1.000e+00",1.0, [{scientific, 3}]),
+ test_fts("1.000",1.0, [{decimals, 3}]),
+ test_fts("1.0",1.0, [{decimals, 1}]),
+ test_fts("1.0",1.0, [{decimals, 3}, compact]),
+ test_fts("1.12",1.123, [{decimals, 2}]),
+ test_fts("1.123",1.123, [{decimals, 3}]),
+ test_fts("1.123",1.123, [{decimals, 3}, compact]),
+ test_fts("1.1230",1.123, [{decimals, 4}]),
+ test_fts("1.12300",1.123, [{decimals, 5}]),
+ test_fts("1.123",1.123, [{decimals, 5}, compact]),
+ test_fts("1.1234",1.1234,[{decimals, 6}, compact]),
+ test_fts("1.01",1.005, [{decimals, 2}]),
+ test_fts("-1.01",-1.005,[{decimals, 2}]),
+ test_fts("0.999",0.999, [{decimals, 3}]),
+ test_fts("-0.999",-0.999,[{decimals, 3}]),
+ test_fts("1.0",0.999, [{decimals, 2}, compact]),
+ test_fts("-1.0",-0.999,[{decimals, 2}, compact]),
+ test_fts("0.5",0.5, [{decimals, 1}]),
+ test_fts("-0.5",-0.5, [{decimals, 1}]),
"2.333333" = erlang:float_to_list(7/3, [{decimals, 6}, compact]),
"2.333333" = erlang:float_to_list(7/3, [{decimals, 6}]),
- "0.00000000000000000000e+00" = float_to_list(0.0, [compact]),
- "0.0" = float_to_list(0.0, [{decimals, 10}, compact]),
- "123000000000000000000.0" = float_to_list(1.23e20, [{decimals, 10}, compact]),
- "1.2300000000e+20" = float_to_list(1.23e20, [{scientific, 10}, compact]),
- "1.23000000000000000000e+20" = float_to_list(1.23e20, []),
+ <<"2.333333">> = erlang:float_to_binary(7/3, [{decimals, 6}, compact]),
+ <<"2.333333">> = erlang:float_to_binary(7/3, [{decimals, 6}]),
+ test_fts("0.00000000000000000000e+00",0.0, [compact]),
+ test_fts("0.0",0.0, [{decimals, 10}, compact]),
+ test_fts("123000000000000000000.0",1.23e20, [{decimals, 10}, compact]),
+ test_fts("1.2300000000e+20",1.23e20, [{scientific, 10}, compact]),
+ test_fts("1.23000000000000000000e+20",1.23e20, []),
ok.
-test_ftl(Expect, Float) ->
- %% No ?line on the next line -- we want the line number from t_float_to_list.
- Expect = remove_zeros(lists:reverse(float_to_list(Float)), []).
-
-%% Removes any non-significant zeros in a floating point number.
-%% Example: 2.500000e+01 -> 2.5e+1
-
-remove_zeros([$+, $e|Rest], [$0, X|Result]) ->
- remove_zeros([$+, $e|Rest], [X|Result]);
-remove_zeros([$-, $e|Rest], [$0, X|Result]) ->
- remove_zeros([$-, $e|Rest], [X|Result]);
-remove_zeros([$0, $.|Rest], [$e|Result]) ->
- remove_zeros(Rest, [$., $0, $e|Result]);
-remove_zeros([$0|Rest], [$e|Result]) ->
- remove_zeros(Rest, [$e|Result]);
-remove_zeros([Char|Rest], Result) ->
- remove_zeros(Rest, [Char|Result]);
-remove_zeros([], Result) ->
- Result.
-
-%% Tests integer_to_list/1.
-
-t_integer_to_list(Config) when is_list(Config) ->
- ?line "0" = integer_to_list(id(0)),
- ?line "42" = integer_to_list(id(42)),
- ?line "-42" = integer_to_list(id(-42)),
- ?line "32768" = integer_to_list(id(32768)),
- ?line "268435455" = integer_to_list(id(268435455)),
- ?line "-268435455" = integer_to_list(id(-268435455)),
- ?line "123456932798748738738" = integer_to_list(id(123456932798748738738)),
- ?line Big_List = id(lists:duplicate(2000, id($1))),
- ?line Big = list_to_integer(Big_List),
- ?line Big_List = integer_to_list(Big),
- ok.
+test_fts(Expect, Float) ->
+ Expect = float_to_list(Float),
+ BinExpect = list_to_binary(Expect),
+ BinExpect = float_to_binary(Float).
-%% Tests list_to_float/1.
+test_fts(Expect, Float, Args) ->
+ Expect = float_to_list(Float,Args),
+ BinExpect = list_to_binary(Expect),
+ BinExpect = float_to_binary(Float,Args).
-t_list_to_float_safe(Config) when is_list(Config) ->
- ?line 0.0 = list_to_float(id("0.0")),
- ?line 0.0 = list_to_float(id("-0.0")),
- ?line 0.5 = list_to_float(id("0.5")),
- ?line -0.5 = list_to_float(id("-0.5")),
- ?line 100.0 = list_to_float(id("1.0e2")),
- ?line 127.5 = list_to_float(id("127.5")),
- ?line -199.5 = list_to_float(id("-199.5")),
+%% Tests list_to_float/1.
- ?line {'EXIT',{badarg,_}} = (catch list_to_float(id("0"))),
- ?line {'EXIT',{badarg,_}} = (catch list_to_float(id("0..0"))),
- ?line {'EXIT',{badarg,_}} = (catch list_to_float(id("0e12"))),
- ?line {'EXIT',{badarg,_}} = (catch list_to_float(id("--0.0"))),
+t_string_to_float_safe(Config) when is_list(Config) ->
+ test_stf(0.0,"0.0"),
+ test_stf(0.0,"-0.0"),
+ test_stf(0.5,"0.5"),
+ test_stf(-0.5,"-0.5"),
+ test_stf(100.0,"1.0e2"),
+ test_stf(127.5,"127.5"),
+ test_stf(-199.5,"-199.5"),
+
+ {'EXIT',{badarg,_}} = (catch list_to_float(id("0"))),
+ {'EXIT',{badarg,_}} = (catch list_to_float(id("0..0"))),
+ {'EXIT',{badarg,_}} = (catch list_to_float(id("0e12"))),
+ {'EXIT',{badarg,_}} = (catch list_to_float(id("--0.0"))),
+ {'EXIT',{badarg,_}} = (catch binary_to_float(id(<<"0">>))),
+ {'EXIT',{badarg,_}} = (catch binary_to_float(id(<<"0..0">>))),
+ {'EXIT',{badarg,_}} = (catch binary_to_float(id(<<"0e12">>))),
+ {'EXIT',{badarg,_}} = (catch binary_to_float(id(<<"--0.0">>))),
+
+ UBin = <<0:3,(id(<<"0.0">>))/binary,0:5>>,
+ <<_:3,UnAlignedBin:3/binary,0:5>> = id(UBin),
+ 0.0 = binary_to_float(UnAlignedBin),
+
+ ABin = <<0:8,(id(<<"1.0">>))/binary,0:8>>,
+ <<_:8,AlignedBin:3/binary,0:8>> = id(ABin),
+ 1.0 = binary_to_float(AlignedBin),
ok.
%% This might crash the emulator...
%% (Known to crash the Unix version of Erlang 4.4.1)
-t_list_to_float_risky(Config) when is_list(Config) ->
- ?line Many_Ones = lists:duplicate(25000, id($1)),
- ?line id(list_to_float("2."++Many_Ones)),
- ?line {'EXIT', {badarg, _}} = (catch list_to_float("2"++Many_Ones)),
- ok.
-
-%% Tests list_to_integer/1.
+t_string_to_float_risky(Config) when is_list(Config) ->
+ Many_Ones = lists:duplicate(25000, id($1)),
+ id(list_to_float("2."++Many_Ones)),
+ {'EXIT', {badarg, _}} = (catch list_to_float("2"++Many_Ones)),
-t_list_to_integer(Config) when is_list(Config) ->
- ?line 0 = list_to_integer(id("0")),
- ?line 0 = list_to_integer(id("00")),
- ?line 0 = list_to_integer(id("-0")),
- ?line 1 = list_to_integer(id("1")),
- ?line -1 = list_to_integer(id("-1")),
- ?line 42 = list_to_integer(id("42")),
- ?line -12 = list_to_integer(id("-12")),
- ?line 32768 = list_to_integer(id("32768")),
- ?line 268435455 = list_to_integer(id("268435455")),
- ?line -268435455 = list_to_integer(id("-268435455")),
-
- %% Bignums.
- ?line 123456932798748738738 = list_to_integer(id("123456932798748738738")),
- ?line id(list_to_integer(lists:duplicate(2000, id($1)))),
+ id(binary_to_float(list_to_binary("2."++Many_Ones))),
+ {'EXIT', {badarg, _}} = (catch binary_to_float(
+ list_to_binary("2"++Many_Ones))),
ok.
+test_stf(Expect,List) ->
+ Expect = list_to_float(List),
+ Bin = list_to_binary(List),
+ Expect = binary_to_float(Bin).
+
%% Tests round/1.
t_round(Config) when is_list(Config) ->
- ?line 0 = round(id(0.0)),
- ?line 0 = round(id(0.4)),
- ?line 1 = round(id(0.5)),
- ?line 0 = round(id(-0.4)),
- ?line -1 = round(id(-0.5)),
- ?line 255 = round(id(255.3)),
- ?line 256 = round(id(255.6)),
- ?line -1033 = round(id(-1033.3)),
- ?line -1034 = round(id(-1033.6)),
+ 0 = round(id(0.0)),
+ 0 = round(id(0.4)),
+ 1 = round(id(0.5)),
+ 0 = round(id(-0.4)),
+ -1 = round(id(-0.5)),
+ 255 = round(id(255.3)),
+ 256 = round(id(255.6)),
+ -1033 = round(id(-1033.3)),
+ -1034 = round(id(-1033.6)),
% OTP-3722:
- ?line X = id((1 bsl 27) - 1),
- ?line MX = -X,
- ?line MXm1 = -X-1,
- ?line MXp1 = -X+1,
- ?line F = id(X + 0.0),
- ?line X = round(F),
- ?line X = round(F+1)-1,
- ?line X = round(F-1)+1,
- ?line MX = round(-F),
- ?line MXm1 = round(-F-1),
- ?line MXp1 = round(-F+1),
-
- ?line X = round(F+0.1),
- ?line X = round(F+1+0.1)-1,
- ?line X = round(F-1+0.1)+1,
- ?line MX = round(-F+0.1),
- ?line MXm1 = round(-F-1+0.1),
- ?line MXp1 = round(-F+1+0.1),
-
- ?line X = round(F-0.1),
- ?line X = round(F+1-0.1)-1,
- ?line X = round(F-1-0.1)+1,
- ?line MX = round(-F-0.1),
- ?line MXm1 = round(-F-1-0.1),
- ?line MXp1 = round(-F+1-0.1),
-
- ?line 0.5 = abs(round(F+0.5)-(F+0.5)),
- ?line 0.5 = abs(round(F-0.5)-(F-0.5)),
- ?line 0.5 = abs(round(-F-0.5)-(-F-0.5)),
- ?line 0.5 = abs(round(-F+0.5)-(-F+0.5)),
+ X = id((1 bsl 27) - 1),
+ MX = -X,
+ MXm1 = -X-1,
+ MXp1 = -X+1,
+ F = id(X + 0.0),
+ X = round(F),
+ X = round(F+1)-1,
+ X = round(F-1)+1,
+ MX = round(-F),
+ MXm1 = round(-F-1),
+ MXp1 = round(-F+1),
+
+ X = round(F+0.1),
+ X = round(F+1+0.1)-1,
+ X = round(F-1+0.1)+1,
+ MX = round(-F+0.1),
+ MXm1 = round(-F-1+0.1),
+ MXp1 = round(-F+1+0.1),
+
+ X = round(F-0.1),
+ X = round(F+1-0.1)-1,
+ X = round(F-1-0.1)+1,
+ MX = round(-F-0.1),
+ MXm1 = round(-F-1-0.1),
+ MXp1 = round(-F+1-0.1),
+
+ 0.5 = abs(round(F+0.5)-(F+0.5)),
+ 0.5 = abs(round(F-0.5)-(F-0.5)),
+ 0.5 = abs(round(-F-0.5)-(-F-0.5)),
+ 0.5 = abs(round(-F+0.5)-(-F+0.5)),
%% Bignums.
- ?line 4294967296 = round(id(4294967296.1)),
- ?line 4294967297 = round(id(4294967296.9)),
- ?line -4294967296 = -round(id(4294967296.1)),
- ?line -4294967297 = -round(id(4294967296.9)),
+ 4294967296 = round(id(4294967296.1)),
+ 4294967297 = round(id(4294967296.9)),
+ -4294967296 = -round(id(4294967296.1)),
+ -4294967297 = -round(id(4294967296.9)),
ok.
t_trunc(Config) when is_list(Config) ->
- ?line 0 = trunc(id(0.0)),
- ?line 5 = trunc(id(5.3333)),
- ?line -10 = trunc(id(-10.978987)),
+ 0 = trunc(id(0.0)),
+ 5 = trunc(id(5.3333)),
+ -10 = trunc(id(-10.978987)),
% The largest smallnum, converted to float (OTP-3722):
- ?line X = id((1 bsl 27) - 1),
- ?line F = id(X + 0.0),
+ X = id((1 bsl 27) - 1),
+ F = id(X + 0.0),
io:format("X = ~p/~w/~w, F = ~p/~w/~w, trunc(F) = ~p/~w/~w~n",
[X, X, binary_to_list(term_to_binary(X)),
F, F, binary_to_list(term_to_binary(F)),
trunc(F), trunc(F), binary_to_list(term_to_binary(trunc(F)))]),
- ?line X = trunc(F),
- ?line X = trunc(F+1)-1,
- ?line X = trunc(F-1)+1,
- ?line X = -trunc(-F),
- ?line X = -trunc(-F-1)-1,
- ?line X = -trunc(-F+1)+1,
+ X = trunc(F),
+ X = trunc(F+1)-1,
+ X = trunc(F-1)+1,
+ X = -trunc(-F),
+ X = -trunc(-F-1)-1,
+ X = -trunc(-F+1)+1,
%% Bignums.
- ?line 4294967305 = trunc(id(4294967305.7)),
- ?line -4294967305 = trunc(id(-4294967305.7)),
+ 4294967305 = trunc(id(4294967305.7)),
+ -4294967305 = trunc(id(-4294967305.7)),
ok.
+
+%% Tests integer_to_binary/1.
+
+t_integer_to_string(Config) when is_list(Config) ->
+ test_its("0",0),
+ test_its("42",42),
+ test_its("-42",-42),
+ test_its("32768",32768),
+ test_its("268435455",268435455),
+ test_its("-268435455",-268435455),
+ test_its("123456932798748738738",123456932798748738738),
+
+ %% 1 bsl 33, just beyond 32 bit
+ test_its("8589934592",8589934592),
+ test_its("-8589934592",-8589934592),
+ %% 1 bsl 65, just beyond 64 bit
+ test_its("36893488147419103232",36893488147419103232),
+ test_its("-36893488147419103232",-36893488147419103232),
+
+ %% Bignums.
+ BigBin = id(list_to_binary(lists:duplicate(2000, id($1)))),
+ Big = erlang:binary_to_integer(BigBin),
+ BigBin = erlang:integer_to_binary(Big),
+
+ %% Invalid types
+ lists:foreach(fun(Value) ->
+ {'EXIT', {badarg, _}} =
+ (catch erlang:integer_to_binary(Value)),
+ {'EXIT', {badarg, _}} =
+ (catch erlang:integer_to_list(Value))
+ end,[atom,1.2,0.0,[$1,[$2]]]),
+
+ ok.
+
+test_its(List,Int) ->
+ Int = list_to_integer(List),
+ Int = binary_to_integer(list_to_binary(List)).
+
+%% Tests binary_to_integer/1.
+
+t_string_to_integer(Config) when is_list(Config) ->
+ 0 = erlang:binary_to_integer(id(<<"00">>)),
+ 0 = erlang:binary_to_integer(id(<<"-0">>)),
+ 0 = erlang:binary_to_integer(id(<<"+0">>)),
+
+ test_sti(0),
+ test_sti(1),
+ test_sti(-1),
+ test_sti(42),
+ test_sti(-12),
+ test_sti(32768),
+ test_sti(268435455),
+ test_sti(-268435455),
+
+ %% 1 bsl 28 - 1, just before 32 bit bignum
+ test_sti(1 bsl 28 - 1),
+ %% 1 bsl 28, just beyond 32 bit small
+ test_sti(1 bsl 28),
+ %% 1 bsl 33, just beyond 32 bit
+ test_sti(1 bsl 33),
+ %% 1 bsl 60 - 1, just before 64 bit bignum
+ test_sti(1 bsl 60 - 1),
+ %% 1 bsl 60, just beyond 64 bit small
+ test_sti(1 bsl 60),
+ %% 1 bsl 65, just beyond 64 bit
+ test_sti(1 bsl 65),
+ %% Bignums.
+ test_sti(123456932798748738738,16),
+ test_sti(list_to_integer(lists:duplicate(2000, $1))),
+
+ %% unalign string
+ Str = <<"10">>,
+ UnalignStr = <<0:3, (id(Str))/binary, 0:5>>,
+ <<_:3, SomeStr:2/binary, _:5>> = id(UnalignStr),
+ 10 = erlang:binary_to_integer(SomeStr),
+
+ %% Invalid types
+ lists:foreach(fun(Value) ->
+ {'EXIT', {badarg, _}} =
+ (catch binary_to_integer(Value)),
+ {'EXIT', {badarg, _}} =
+ (catch erlang:list_to_integer(Value))
+ end,[atom,1.2,0.0,[$1,[$2]]]),
+
+ % Default base error cases
+ lists:foreach(fun(Value) ->
+ {'EXIT', {badarg, _}} =
+ (catch erlang:binary_to_integer(
+ list_to_binary(Value))),
+ {'EXIT', {badarg, _}} =
+ (catch erlang:list_to_integer(Value))
+ end,["1.0"," 1"," -1",""]),
+
+ % Custom base error cases
+ lists:foreach(fun({Value,Base}) ->
+ {'EXIT', {badarg, _}} =
+ (catch binary_to_integer(
+ list_to_binary(Value),Base)),
+ {'EXIT', {badarg, _}} =
+ (catch erlang:list_to_integer(Value,Base))
+ end,[{" 1",1},{" 1",37},{"2",2},{"C",11},
+ {"1111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111z",16},
+ {"1z111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111111",16},
+ {"111z11111111",16}]),
+
+ ok.
+
+test_sti(Num) ->
+ [begin
+ io:format("Testing ~p:~p",[Num,Base]),
+ test_sti(Num,Base)
+ end|| Base <- lists:seq(2,36)].
+
+test_sti(Num,Base) ->
+ Num = list_to_integer(int2list(Num,Base),Base),
+ Num = -1*list_to_integer(int2list(Num*-1,Base),Base),
+ Num = binary_to_integer(int2bin(Num,Base),Base),
+ Num = -1*binary_to_integer(int2bin(Num*-1,Base),Base).
+
% Calling this function (which is not supposed to be inlined) prevents
% the compiler from calculating the answer, so we don't test the compiler
% instead of the newest runtime system.
id(X) -> X.
+
+%% Uses the printing library to to integer_to_binary conversions.
+int2bin(Int,Base) when Base < 37 ->
+ iolist_to_binary(int2list(Int,Base)).
+
+int2list(Int,Base) when Base < 37 ->
+ lists:flatten(io_lib:format("~."++integer_to_list(Base)++"B",[Int])).
diff --git a/erts/preloaded/src/erlang.erl b/erts/preloaded/src/erlang.erl
index 115e1b03c4..8e4a471a82 100644
--- a/erts/preloaded/src/erlang.erl
+++ b/erts/preloaded/src/erlang.erl
@@ -36,7 +36,8 @@
-export([set_cookie/2, get_cookie/0]).
-export([nodes/0]).
--export([list_to_integer/2,integer_to_list/2]).
+-export([integer_to_list/2]).
+-export([integer_to_binary/2]).
-export([flush_monitor_message/2]).
-export([set_cpu_topology/1, format_cpu_topology/1]).
-export([await_proc_exit/3]).
@@ -73,7 +74,9 @@
-export([adler32/1, adler32/2, adler32_combine/3, append_element/2]).
-export([atom_to_binary/2, atom_to_list/1, binary_part/2, binary_part/3]).
--export([binary_to_atom/2, binary_to_existing_atom/2, binary_to_list/1]).
+-export([binary_to_atom/2, binary_to_existing_atom/2, binary_to_float/1]).
+-export([binary_to_integer/1,binary_to_integer/2]).
+-export([binary_to_list/1]).
-export([binary_to_list/3, binary_to_term/1, binary_to_term/2]).
-export([bit_size/1, bitsize/1, bitstr_to_list/1, bitstring_to_list/1]).
-export([bump_reductions/1, byte_size/1, call_on_load_function/1]).
@@ -84,18 +87,21 @@
-export([display_nl/0, display_string/1, dist_exit/3, erase/0, erase/1]).
-export([error/1, error/2, exit/1, exit/2, external_size/1]).
-export([external_size/2, finish_after_on_load/2, finish_loading/1, float/1]).
--export([float_to_list/1, float_to_list/2]).
+-export([float_to_binary/1, float_to_binary/2,
+ float_to_list/1, float_to_list/2]).
-export([fun_info/2, fun_to_list/1, function_exported/3]).
-export([garbage_collect/0, garbage_collect/1]).
-export([garbage_collect_message_area/0, get/0, get/1, get_keys/1]).
-export([get_module_info/1, get_stacktrace/0, group_leader/0]).
-export([group_leader/2, halt/0, halt/1, halt/2, hash/2, hibernate/3]).
-export([insert_element/3]).
--export([integer_to_list/1, iolist_size/1, iolist_to_binary/1]).
+-export([integer_to_binary/1, integer_to_list/1]).
+-export([iolist_size/1, iolist_to_binary/1]).
-export([is_alive/0, is_builtin/3, is_process_alive/1, length/1, link/1]).
-export([list_to_atom/1, list_to_binary/1, list_to_bitstr/1]).
-export([list_to_bitstring/1, list_to_existing_atom/1, list_to_float/1]).
--export([list_to_integer/1, list_to_pid/1, list_to_tuple/1, loaded/0]).
+-export([list_to_integer/1, list_to_integer/2]).
+-export([list_to_pid/1, list_to_tuple/1, loaded/0]).
-export([localtime/0, make_ref/0, match_spec_test/3, md5/1, md5_final/1]).
-export([md5_init/0, md5_update/2, module_loaded/1, monitor/2]).
-export([monitor_node/2, monitor_node/3, nif_error/1, nif_error/2
@@ -317,6 +323,25 @@ binary_to_atom(_Binary, _Encoding) ->
binary_to_existing_atom(_Binary, _Encoding) ->
erlang:nif_error(undefined).
+%% binary_to_float/1
+-spec binary_to_float(Binary) -> float() when
+ Binary :: binary().
+binary_to_float(_Binary) ->
+ erlang:nif_error(undefined).
+
+%% binary_to_integer/1
+-spec binary_to_integer(Binary) -> integer() when
+ Binary :: binary().
+binary_to_integer(_Binary) ->
+ erlang:nif_error(undefined).
+
+%% binary_to_integer/2
+-spec binary_to_integer(Binary,Base) -> integer() when
+ Binary :: binary(),
+ Base :: 2..36.
+binary_to_integer(_Binary,_Base) ->
+ erlang:nif_error(undefined).
+
%% binary_to_list/1
-spec binary_to_list(Binary) -> [byte()] when
Binary :: binary().
@@ -706,6 +731,22 @@ finish_after_on_load(_P1, _P2) ->
float(_Number) ->
erlang:nif_error(undefined).
+%% float_to_binary/1
+-spec float_to_binary(Float) -> binary() when
+ Float :: float().
+float_to_binary(_Float) ->
+ erlang:nif_error(undefined).
+
+%% float_to_binary/2
+-spec float_to_binary(Float, Options) -> binary() when
+ Float :: float(),
+ Options :: [Option],
+ Option :: {decimals, Decimals :: 0..253} |
+ {scientific, Decimals :: 0..249} |
+ compact.
+float_to_binary(_Float, _Options) ->
+ erlang:nif_error(undefined).
+
%% float_to_list/1
-spec float_to_list(Float) -> string() when
Float :: float().
@@ -716,8 +757,8 @@ float_to_list(_Float) ->
-spec float_to_list(Float, Options) -> string() when
Float :: float(),
Options :: [Option],
- Option :: {decimals, non_neg_integer()} |
- {scientific, non_neg_integer()} |
+ Option :: {decimals, Decimals :: 0..253} |
+ {scientific, Decimals :: 0..249} |
compact.
float_to_list(_Float, _Options) ->
erlang:nif_error(undefined).
@@ -850,6 +891,12 @@ hibernate(_Module, _Function, _Args) ->
insert_element(_Index, _Tuple1, _Term) ->
erlang:nif_error(undefined).
+%% integer_to_binary/1
+-spec integer_to_binary(Integer) -> binary() when
+ Integer :: integer().
+integer_to_binary(_Integer) ->
+ erlang:nif_error(undefined).
+
%% integer_to_list/1
-spec integer_to_list(Integer) -> string() when
Integer :: integer().
@@ -942,6 +989,13 @@ list_to_float(_String) ->
list_to_integer(_String) ->
erlang:nif_error(undefined).
+%% list_to_integer/2
+-spec list_to_integer(String, Base) -> integer() when
+ String :: string(),
+ Base :: 2..36.
+list_to_integer(_String,_Base) ->
+ erlang:nif_error(undefined).
+
%% list_to_pid/1
-spec list_to_pid(String) -> pid() when
String :: string().
@@ -2838,51 +2892,32 @@ integer_to_list(I0, Base, R0) ->
integer_to_list(I1, Base, R1)
end.
-
--spec list_to_integer(String, Base) -> integer() when
- String :: string(),
+-spec integer_to_binary(Integer, Base) -> binary() when
+ Integer :: integer(),
Base :: 2..36.
-list_to_integer(L, 10) ->
- erlang:list_to_integer(L);
-list_to_integer(L, Base)
- when erlang:is_list(L), erlang:is_integer(Base),
+integer_to_binary(I, 10) ->
+ erlang:integer_to_binary(I);
+integer_to_binary(I, Base)
+ when erlang:is_integer(I), erlang:is_integer(Base),
Base >= 2, Base =< 1+$Z-$A+10 ->
- case list_to_integer_sign(L, Base) of
- I when erlang:is_integer(I) ->
- I;
- Fault ->
- erlang:error(Fault, [L,Base])
- end;
-list_to_integer(L, Base) ->
- erlang:error(badarg, [L,Base]).
-
-list_to_integer_sign([$-|[_|_]=L], Base) ->
- case list_to_integer(L, Base, 0) of
- I when erlang:is_integer(I) ->
- -I;
- I ->
- I
+ if I < 0 ->
+ <<"$-",(integer_to_binary(-I, Base, []))/binary>>;
+ true ->
+ integer_to_binary(I, Base, <<>>)
end;
-list_to_integer_sign([$+|[_|_]=L], Base) ->
- list_to_integer(L, Base, 0);
-list_to_integer_sign([_|_]=L, Base) ->
- list_to_integer(L, Base, 0);
-list_to_integer_sign(_, _) ->
- badarg.
-
-list_to_integer([D|L], Base, I)
- when erlang:is_integer(D), D >= $0, D =< $9, D < Base+$0 ->
- list_to_integer(L, Base, I*Base + D-$0);
-list_to_integer([D|L], Base, I)
- when erlang:is_integer(D), D >= $A, D < Base+$A-10 ->
- list_to_integer(L, Base, I*Base + D-$A+10);
-list_to_integer([D|L], Base, I)
- when erlang:is_integer(D), D >= $a, D < Base+$a-10 ->
- list_to_integer(L, Base, I*Base + D-$a+10);
-list_to_integer([], _, I) ->
- I;
-list_to_integer(_, _, _) ->
- badarg.
+integer_to_binary(I, Base) ->
+ erlang:error(badarg, [I, Base]).
+
+integer_to_binary(0, _Base, R0) ->
+ R0;
+integer_to_binary(I0, Base, R0) ->
+ D = I0 rem Base,
+ I1 = I0 div Base,
+ if D >= 10 ->
+ integer_to_binary(I1,Base,<<(D-10+$A),R0/binary>>);
+ true ->
+ integer_to_binary(I1,Base,<<(D+$0),R0/binary>>)
+ end.
%% erlang:flush_monitor_message/2 is for internal use only!
%%
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-16 16:33:06 +0000