diff options
| author | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2002-12-24 08:53:56 +0000 |
|---|---|---|
| committer | matz <matz@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2002-12-24 08:53:56 +0000 |
| commit | ee9d5d41d178c21594891c9d876f228dc509ce0b (patch) | |
| tree | 86e378374a47432b780b795dc8d361a30f60b68c /numeric.c | |
| parent | e274c3ab76ca95dd089b6ef467700b4a0576dfad (diff) | |
021224
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@3207 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'numeric.c')
| -rw-r--r-- | numeric.c | 46 |
1 files changed, 44 insertions, 2 deletions
@@ -22,8 +22,39 @@ #include <float.h> #endif +/* use IEEE 64bit values if not defined */ +#ifndef FLT_RADIX +#define FLT_RADIX 2 +#endif +#ifndef FLT_ROUNDS +#define FLT_ROUNDS 1 +#endif +#ifndef DBL_MIN +#define DBL_MIN 2.2250738585072014e-308 +#endif +#ifndef DBL_MAX +#define DBL_MAX 1.7976931348623157e+308 +#endif +#ifndef DBL_MIN_EXP +#define DBL_MIN_EXP (-1021) +#endif +#ifndef DBL_MAX_EXP +#define DBL_MAX_EXP 1024 +#endif +#ifndef DBL_MIN_10_EXP +#define DBL_MIN_10_EXP (-307) +#endif +#ifndef DBL_MAX_10_EXP +#define DBL_MAN_10_EXP 308 +#endif +#ifndef DBL_DIG +#define DBL_DIG 15 +#endif +#ifndef DBL_MANT_DIG +#define DBL_MANT_DIG 53 +#endif #ifndef DBL_EPSILON -#define DBL_EPSILON 2.2204460492503131E-16 +#define DBL_EPSILON 2.2204460492503131e-16 #endif static ID id_coerce, id_to_i, id_div; @@ -1767,6 +1798,18 @@ Init_Numeric() rb_define_singleton_method(rb_cFloat, "induced_from", rb_flo_induced_from, 1); rb_include_module(rb_cFloat, rb_mPrecision); + rb_define_const(rb_cFloat, "ROUNDS", INT2FIX(FLT_ROUNDS)); + rb_define_const(rb_cFloat, "RADIX", INT2FIX(FLT_RADIX)); + rb_define_const(rb_cFloat, "MANT_DIG", INT2FIX(DBL_MANT_DIG)); + rb_define_const(rb_cFloat, "DIG", INT2FIX(DBL_DIG)); + rb_define_const(rb_cFloat, "MIN_EXP", INT2FIX(DBL_MIN_EXP)); + rb_define_const(rb_cFloat, "MAX_EXP", INT2FIX(DBL_MAX_EXP)); + rb_define_const(rb_cFloat, "MIN_10_EXP", INT2FIX(DBL_MIN_10_EXP)); + rb_define_const(rb_cFloat, "MAX_10_EXP", INT2FIX(DBL_MAX_10_EXP)); + rb_define_const(rb_cFloat, "MIN", rb_float_new(DBL_MIN)); + rb_define_const(rb_cFloat, "MAX", rb_float_new(DBL_MAX)); + rb_define_const(rb_cFloat, "EPSILON", rb_float_new(DBL_EPSILON)); + rb_define_method(rb_cFloat, "to_s", flo_to_s, 0); rb_define_method(rb_cFloat, "coerce", flo_coerce, 1); rb_define_method(rb_cFloat, "-@", flo_uminus, 0); @@ -1801,4 +1844,3 @@ Init_Numeric() rb_define_method(rb_cFloat, "infinite?", flo_is_infinite_p, 0); rb_define_method(rb_cFloat, "finite?", flo_is_finite_p, 0); } - |