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Merge pull request #4612 from dearblue/float-consts

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Add constants for floating point number
This commit is contained in:
Yukihiro "Matz" Matsumoto
2019-08-05 07:29:25 +09:00
committed by GitHub
parent dc11e7f027 eb86340139
commit 0e2e8b79d3
2 changed files with 44 additions and 0 deletions
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include/mruby/numeric.h
+30
View File
@@ -160,6 +160,36 @@ mrb_int_mul_overflow(mrb_int multiplier, mrb_int multiplicand, mrb_int *product)
#endif
#ifndef MRB_WITHOUT_FLOAT
# include <stdint.h>
# include <float.h>
# define MRB_FLT_RADIX FLT_RADIX
# ifdef MRB_USE_FLOAT
# define MRB_FLT_MANT_DIG FLT_MANT_DIG
# define MRB_FLT_EPSILON FLT_EPSILON
# define MRB_FLT_DIG FLT_DIG
# define MRB_FLT_MIN_EXP FLT_MIN_EXP
# define MRB_FLT_MIN FLT_MIN
# define MRB_FLT_MIN_10_EXP FLT_MIN_10_EXP
# define MRB_FLT_MAX_EXP FLT_MAX_EXP
# define MRB_FLT_MAX FLT_MAX
# define MRB_FLT_MAX_10_EXP FLT_MAX_10_EXP
# else /* not MRB_USE_FLOAT */
# define MRB_FLT_MANT_DIG DBL_MANT_DIG
# define MRB_FLT_EPSILON DBL_EPSILON
# define MRB_FLT_DIG DBL_DIG
# define MRB_FLT_MIN_EXP DBL_MIN_EXP
# define MRB_FLT_MIN DBL_MIN
# define MRB_FLT_MIN_10_EXP DBL_MIN_10_EXP
# define MRB_FLT_MAX_EXP DBL_MAX_EXP
# define MRB_FLT_MAX DBL_MAX
# define MRB_FLT_MAX_10_EXP DBL_MAX_10_EXP
# endif /* MRB_USE_FLOAT */
#endif /* MRB_WITHOUT_FLOAT */
MRB_END_DECL
#endif /* MRUBY_NUMERIC_H */
mrbgems/mruby-numeric-ext/src/numeric_ext.c
+14
View File
@@ -1,5 +1,6 @@
#include <limits.h>
#include <mruby.h>
#include <mruby/numeric.h>
static inline mrb_int
to_int(mrb_state *mrb, mrb_value x)
@@ -64,6 +65,19 @@ mrb_mruby_numeric_ext_gem_init(mrb_state* mrb)
mrb_define_method(mrb, i, "allbits?", mrb_int_allbits, MRB_ARGS_REQ(1));
mrb_define_method(mrb, i, "anybits?", mrb_int_anybits, MRB_ARGS_REQ(1));
mrb_define_method(mrb, i, "nobits?", mrb_int_nobits, MRB_ARGS_REQ(1));
#ifndef MRB_WITHOUT_FLOAT
mrb_define_const(mrb, mrb->float_class, "RADIX", mrb_fixnum_value(MRB_FLT_RADIX));
mrb_define_const(mrb, mrb->float_class, "MANT_DIG", mrb_fixnum_value(MRB_FLT_MANT_DIG));
mrb_define_const(mrb, mrb->float_class, "EPSILON", mrb_float_value(mrb, MRB_FLT_EPSILON));
mrb_define_const(mrb, mrb->float_class, "DIG", mrb_fixnum_value(MRB_FLT_DIG));
mrb_define_const(mrb, mrb->float_class, "MIN_EXP", mrb_fixnum_value(MRB_FLT_MIN_EXP));
mrb_define_const(mrb, mrb->float_class, "MIN", mrb_float_value(mrb, MRB_FLT_MIN));
mrb_define_const(mrb, mrb->float_class, "MIN_10_EXP", mrb_fixnum_value(MRB_FLT_MIN_10_EXP));
mrb_define_const(mrb, mrb->float_class, "MAX_EXP", mrb_fixnum_value(MRB_FLT_MAX_EXP));
mrb_define_const(mrb, mrb->float_class, "MAX", mrb_float_value(mrb, MRB_FLT_MAX));
mrb_define_const(mrb, mrb->float_class, "MAX_10_EXP", mrb_fixnum_value(MRB_FLT_MAX_10_EXP));
#endif /* MRB_WITHOUT_FLOAT */
}
void