diff options
Diffstat (limited to 'numeric.c')
| -rw-r--r-- | numeric.c | 22 |
1 files changed, 18 insertions, 4 deletions
@@ -63,6 +63,20 @@ #define DBL_EPSILON 2.2204460492503131e-16 #endif +#ifdef HAVE_INFINITY +#elif BYTE_ORDER == LITTLE_ENDIAN +const unsigned char rb_infinity[] = "\x00\x00\x00\x00\x00\x00\xf0\x7f"; +#else +const unsigned char rb_infinity[] = "\x7f\xf0\x00\x00\x00\x00\x00\x00"; +#endif + +#ifdef HAVE_NAN +#elif BYTE_ORDER == LITTLE_ENDIAN +const unsigned char rb_nan[] = "\x00\x00\x00\x00\x00\x00\xf8\x7f"; +#else +const unsigned char rb_nan[] = "\x7f\xf8\x00\x00\x00\x00\x00\x00"; +#endif + extern double round(double); #ifndef HAVE_ROUND @@ -2467,8 +2481,6 @@ int_pow(long x, unsigned long y) return LONG2NUM(z); } -#define infinite_value() ruby_div0(1.0) - /* * call-seq: * fix ** numeric -> numeric_result @@ -2496,7 +2508,7 @@ fix_pow(VALUE x, VALUE y) if (b == 1) return x; if (a == 0) { if (b > 0) return INT2FIX(0); - return DBL2NUM(infinite_value()); + return DBL2NUM(INFINITY); } if (a == 1) return INT2FIX(1); if (a == -1) { @@ -2524,7 +2536,7 @@ fix_pow(VALUE x, VALUE y) case T_FLOAT: if (RFLOAT_VALUE(y) == 0.0) return DBL2NUM(1.0); if (a == 0) { - return DBL2NUM(RFLOAT_VALUE(y) < 0 ? infinite_value() : 0.0); + return DBL2NUM(RFLOAT_VALUE(y) < 0 ? INFINITY : 0.0); } if (a == 1) return DBL2NUM(1.0); { @@ -3305,6 +3317,8 @@ Init_Numeric(void) rb_define_const(rb_cFloat, "MIN", DBL2NUM(DBL_MIN)); rb_define_const(rb_cFloat, "MAX", DBL2NUM(DBL_MAX)); rb_define_const(rb_cFloat, "EPSILON", DBL2NUM(DBL_EPSILON)); + rb_define_const(rb_cFloat, "INFINITY", DBL2NUM(INFINITY)); + rb_define_const(rb_cFloat, "NAN", DBL2NUM(NAN)); rb_define_method(rb_cFloat, "to_s", flo_to_s, 0); rb_define_method(rb_cFloat, "coerce", flo_coerce, 1); |