diff options
Diffstat (limited to 'internal.h')
| -rw-r--r-- | internal.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/internal.h b/internal.h index e66b5fd038..6c80427dce 100644 --- a/internal.h +++ b/internal.h @@ -19,6 +19,15 @@ extern "C" { #endif #endif +#define MUL_OVERFLOW_SIGNED_INTEGER_P(a, b, min, max) ( \ + (a) == 0 ? 0 : \ + (a) == -1 ? (b) < -(max) : \ + (a) > 0 ? \ + ((b) > 0 ? (max) / (a) < (b) : (min) / (a) > (b)) : \ + ((b) > 0 ? (min) / (a) < (b) : (max) / (a) > (b))) +#define MUL_OVERFLOW_FIXNUM_P(a, b) MUL_OVERFLOW_SIGNED_INTEGER_P(a, b, FIXNUM_MIN, FIXNUM_MAX) +#define MUL_OVERFLOW_LONG_P(a, b) MUL_OVERFLOW_SIGNED_INTEGER_P(a, b, LONG_MIN, LONG_MAX) + struct rb_deprecated_classext_struct { char conflict[sizeof(VALUE) * 3]; }; |