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| author | cremno <[email protected]> | 2014-05-05 15:22:42 +0200 |
|---|---|---|
| committer | cremno <[email protected]> | 2014-05-05 15:22:42 +0200 |
| commit | ff03cea79b710913af1f5decec1952c14ba67812 (patch) | |
| tree | df961c6f41e0787fb47d0d83779419bc54497167 | |
| parent | 02cabf8fa7aacb1063d73105dbcf59bccee87470 (diff) | |
| download | mruby-ff03cea79b710913af1f5decec1952c14ba67812.tar.gz mruby-ff03cea79b710913af1f5decec1952c14ba67812.zip | |
temporary macros for checked arithmetic functions
| -rw-r--r-- | include/mruby/numeric.h | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/include/mruby/numeric.h b/include/mruby/numeric.h index 17291c2f2..63a5eb300 100644 --- a/include/mruby/numeric.h +++ b/include/mruby/numeric.h @@ -25,6 +25,21 @@ mrb_value mrb_fixnum_mul(mrb_state *mrb, mrb_value x, mrb_value y); mrb_value mrb_num_div(mrb_state *mrb, mrb_value x, mrb_value y); mrb_float mrb_to_flo(mrb_state *mrb, mrb_value x); +#define MRB_UINT_MAKE2(n) uint ## n ## _t +#define MRB_UINT_MAKE(n) MRB_UINT_MAKE2(n) +#define mrb_uint MRB_UINT_MAKE(MRB_INT_BIT) + +#ifdef MRB_WORD_BOXING +# define MRB_INT_OVERFLOW_MASK ((mrb_uint)1 << (MRB_INT_BIT - 1 - MRB_FIXNUM_SHIFT)) +#else +# define MRB_INT_OVERFLOW_MASK ((mrb_uint)1 << (MRB_INT_BIT - 1)) +#endif + +#undef MRB_INT_OVERFLOW_MASK +#undef mrb_uint +#undef MRB_UINT_MAKE +#undef MRB_UINT_MAKE2 + #if defined(__cplusplus) } /* extern "C" { */ #endif |