diff options
Diffstat (limited to 'ext')
| -rw-r--r-- | ext/bigdecimal/bigdecimal.c | 13 |
1 files changed, 11 insertions, 2 deletions
diff --git a/ext/bigdecimal/bigdecimal.c b/ext/bigdecimal/bigdecimal.c index 29240c7da4..e0cd4b006b 100644 --- a/ext/bigdecimal/bigdecimal.c +++ b/ext/bigdecimal/bigdecimal.c @@ -199,14 +199,23 @@ GetVpValueWithPrec(VALUE v, long prec, int must) VALUE num, bg; char szD[128]; VALUE orig = Qundef; + double d; again: switch(TYPE(v)) { case T_FLOAT: if (prec < 0) goto unable_to_coerce_without_prec; if (prec > DBL_DIG+1) goto SomeOneMayDoIt; - v = rb_funcall(v, id_to_r, 0); - goto again; + d = RFLOAT_VALUE(v); + if (d != 0.0) { + v = rb_funcall(v, id_to_r, 0); + goto again; + } + if (1/d < 0.0) { + return VpCreateRbObject(prec, "-0"); + } + return VpCreateRbObject(prec, "0"); + case T_RATIONAL: if (prec < 0) goto unable_to_coerce_without_prec; |