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authorLukas Larsson <[email protected]>2011-08-08 16:13:32 +0200
committerLukas Larsson <[email protected]>2011-10-11 17:19:00 +0200
commit6c1a36a91a0b214d598f845bed2b649a4de8ae3f (patch)
tree3214c519e5a3782d14c13741884598876cfe8ce6 /erts/emulator
parentf99fd21debc8274dbdecd595e1666436ec962ccd (diff)
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Cleanup double_to_bignum conversion code
Diffstat (limited to 'erts/emulator')
-rw-r--r--erts/emulator/beam/big.c15
1 files changed, 7 insertions, 8 deletions
diff --git a/erts/emulator/beam/big.c b/erts/emulator/beam/big.c
index 51e5d2d305..b90ea6b478 100644
--- a/erts/emulator/beam/big.c
+++ b/erts/emulator/beam/big.c
@@ -1584,23 +1584,22 @@ big_to_double(Wterm x, double* resp)
return 0;
}
+/*
+ * Logic has been copied from erl_bif_guard.c and slightly
+ * modified to use a static instead of dynamic heap
+ */
Eterm
double_to_big(double x, Eterm *heap)
{
int is_negative;
int ds;
ErtsDigit* xp;
- Eterm tmp_res;
+ Eterm res;
int i;
size_t sz;
Eterm* hp;
double dbase;
- if ((x < (double) (MAX_SMALL + 1)) && (x > (double) (MIN_SMALL - 1))) {
- Sint xi = x;
- return make_small(xi);
- }
-
if (x >= 0) {
is_negative = 0;
} else {
@@ -1618,7 +1617,7 @@ double_to_big(double x, Eterm *heap)
sz = BIG_NEED_SIZE(ds); /* number of words including arity */
hp = heap;
- tmp_res = make_big(hp);
+ res = make_big(hp);
xp = (ErtsDigit*) (hp + 1);
for (i = ds - 1; i >= 0; i--) {
@@ -1638,7 +1637,7 @@ double_to_big(double x, Eterm *heap)
} else {
*hp = make_pos_bignum_header(sz-1);
}
- return tmp_res;
+ return res;
}