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-rw-r--r--erts/emulator/beam/bif.c108
1 files changed, 94 insertions, 14 deletions
diff --git a/erts/emulator/beam/bif.c b/erts/emulator/beam/bif.c
index 46f297fc4d..16df37a0fb 100644
--- a/erts/emulator/beam/bif.c
+++ b/erts/emulator/beam/bif.c
@@ -1,7 +1,7 @@
/*
* %CopyrightBegin%
*
- * Copyright Ericsson AB 1996-2012. All Rights Reserved.
+ * Copyright Ericsson AB 1996-2013. All Rights Reserved.
*
* The contents of this file are subject to the Erlang Public License,
* Version 1.1, (the "License"); you may not use this file except in
@@ -2603,9 +2603,13 @@ BIF_RETTYPE delete_element_2(BIF_ALIST_3)
BIF_RETTYPE atom_to_list_1(BIF_ALIST_1)
{
- Uint need;
- Eterm* hp;
Atom* ap;
+ Uint num_chars, num_built, num_eaten;
+ byte* err_pos;
+ Eterm res;
+#ifdef DEBUG
+ int ares;
+#endif
if (is_not_atom(BIF_ARG_1))
BIF_ERROR(BIF_P, BADARG);
@@ -2614,9 +2618,18 @@ BIF_RETTYPE atom_to_list_1(BIF_ALIST_1)
ap = atom_tab(atom_val(BIF_ARG_1));
if (ap->len == 0)
BIF_RET(NIL); /* the empty atom */
- need = ap->len*2;
- hp = HAlloc(BIF_P, need);
- BIF_RET(buf_to_intlist(&hp,(char*)ap->name,ap->len, NIL));
+
+#ifdef DEBUG
+ ares =
+#endif
+ erts_analyze_utf8(ap->name, ap->len, &err_pos, &num_chars, NULL);
+ ASSERT(ares == ERTS_UTF8_OK);
+
+ res = erts_utf8_to_list(BIF_P, num_chars, ap->name, ap->len, ap->len,
+ &num_built, &num_eaten, NIL);
+ ASSERT(num_built == num_chars);
+ ASSERT(num_eaten == ap->len);
+ BIF_RET(res);
}
/**********************************************************************/
@@ -2626,18 +2639,19 @@ BIF_RETTYPE atom_to_list_1(BIF_ALIST_1)
BIF_RETTYPE list_to_atom_1(BIF_ALIST_1)
{
Eterm res;
- char *buf = (char *) erts_alloc(ERTS_ALC_T_TMP, MAX_ATOM_LENGTH);
- int i = intlist_to_buf(BIF_ARG_1, buf, MAX_ATOM_LENGTH);
+ char *buf = (char *) erts_alloc(ERTS_ALC_T_TMP, MAX_ATOM_CHARACTERS);
+ int i = intlist_to_buf(BIF_ARG_1, buf, MAX_ATOM_CHARACTERS);
if (i < 0) {
erts_free(ERTS_ALC_T_TMP, (void *) buf);
i = list_length(BIF_ARG_1);
- if (i > MAX_ATOM_LENGTH) {
+ if (i > MAX_ATOM_CHARACTERS) {
BIF_ERROR(BIF_P, SYSTEM_LIMIT);
}
BIF_ERROR(BIF_P, BADARG);
}
- res = am_atom_put(buf, i);
+ res = erts_atom_put((byte *) buf, i, ERTS_ATOM_ENC_LATIN1, 1);
+ ASSERT(is_atom(res));
erts_free(ERTS_ALC_T_TMP, (void *) buf);
BIF_RET(res);
}
@@ -2647,16 +2661,16 @@ BIF_RETTYPE list_to_atom_1(BIF_ALIST_1)
BIF_RETTYPE list_to_existing_atom_1(BIF_ALIST_1)
{
int i;
- char *buf = (char *) erts_alloc(ERTS_ALC_T_TMP, MAX_ATOM_LENGTH);
+ char *buf = (char *) erts_alloc(ERTS_ALC_T_TMP, MAX_ATOM_CHARACTERS);
- if ((i = intlist_to_buf(BIF_ARG_1, buf, MAX_ATOM_LENGTH)) < 0) {
+ if ((i = intlist_to_buf(BIF_ARG_1, buf, MAX_ATOM_CHARACTERS)) < 0) {
error:
erts_free(ERTS_ALC_T_TMP, (void *) buf);
BIF_ERROR(BIF_P, BADARG);
} else {
Eterm a;
- if (erts_atom_get(buf, i, &a)) {
+ if (erts_atom_get(buf, i, &a, 1)) {
erts_free(ERTS_ALC_T_TMP, (void *) buf);
BIF_RET(a);
} else {
@@ -2916,7 +2930,73 @@ BIF_RETTYPE float_to_list_1(BIF_ALIST_1)
need = i*2;
hp = HAlloc(BIF_P, need);
BIF_RET(buf_to_intlist(&hp, fbuf, i, NIL));
- }
+}
+
+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;
+ enum fmt_type_ {
+ FMT_LEGACY,
+ 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))
+ goto badarg;
+
+ for(; is_list(list); list = CDR(list_val(list))) {
+ arg = CAR(list_val(list));
+ if (arg == am_compact) {
+ compact = 1;
+ continue;
+ } else if (is_tuple(arg)) {
+ Eterm* tp = tuple_val(arg);
+ if (*tp == arity_two && is_small(tp[2])) {
+ decimals = signed_val(tp[2]);
+ if (decimals > 0 && decimals < sizeof(fbuf) - 6 /* "X." ++ "e+YY" */)
+ switch (tp[1]) {
+ case am_decimals:
+ fmt_type = FMT_FIXED;
+ continue;
+ case am_scientific:
+ fmt_type = FMT_SCIENTIFIC;
+ continue;
+ }
+ }
+ }
+ goto badarg;
+ }
+ if (is_not_nil(list)) {
+ goto badarg;
+ }
+
+ GET_DOUBLE(BIF_ARG_1, f);
+
+ if (fmt_type == FMT_FIXED) {
+ if ((i = sys_double_to_chars_fast(f.fd, fbuf, sizeof(fbuf),
+ decimals, compact)) <= 0)
+ goto badarg;
+ } else {
+ if ((i = sys_double_to_chars_ext(f.fd, fbuf, sizeof(fbuf), decimals)) <= 0)
+ goto badarg;
+ }
+
+ need = i*2;
+ hp = HAlloc(BIF_P, need);
+ BIF_RET(buf_to_intlist(&hp, fbuf, i, NIL));
+badarg:
+ BIF_ERROR(BIF_P, BADARG);
+}
/**********************************************************************/