From ff03cea79b710913af1f5decec1952c14ba67812 Mon Sep 17 00:00:00 2001 From: cremno Date: Mon, 5 May 2014 15:22:42 +0200 Subject: temporary macros for checked arithmetic functions --- include/mruby/numeric.h | 15 +++++++++++++++ 1 file changed, 15 insertions(+) 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 -- cgit v1.2.3