diff options
Diffstat (limited to 'src/numeric.c')
| -rw-r--r-- | src/numeric.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/src/numeric.c b/src/numeric.c index c309abf89..1cb47a8f2 100644 --- a/src/numeric.c +++ b/src/numeric.c @@ -710,7 +710,11 @@ int_to_i(mrb_state *mrb, mrb_value num) static mrb_value fix_succ(mrb_state *mrb, mrb_value num) { - return mrb_fixnum_value(mrb_fixnum(num)+1); + mrb_int x = mrb_fixnum(num); + + if (x == MRB_INT_MAX) /* fixnum overflow */ + return mrb_float_value(mrb, (double)x + 1.0); + return mrb_fixnum_value(x+1); } /* 15.2.8.3.19 */ |