diff options
author | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-09-25 07:58:49 +0000 |
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committer | nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2013-09-25 07:58:49 +0000 |
commit | d700d340437a4cfba215e51b9045460900c62c3a (patch) | |
tree | 6eab445cde1fc6e53ff86ba9718180baaeb609e3 /include/ruby | |
parent | b328a43fa6e9d07ee8cfce09aaf5fdf1da7203fd (diff) | |
download | ruby-d700d340437a4cfba215e51b9045460900c62c3a.tar.gz |
internal.h: move inline functions
* internal.h (rb_float_value, rb_float_new): move inline functions
from ruby/ruby.h.
* numeric.c (rb_float_value, rb_float_new): define external functions
for extension libraries.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@43042 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'include/ruby')
-rw-r--r-- | include/ruby/ruby.h | 79 |
1 files changed, 2 insertions, 77 deletions
diff --git a/include/ruby/ruby.h b/include/ruby/ruby.h index cb432538b1..7ab224639a 100644 --- a/include/ruby/ruby.h +++ b/include/ruby/ruby.h @@ -805,85 +805,10 @@ struct RFloat { double float_value; }; +double rb_float_value(VALUE); +VALUE rb_float_new(double); VALUE rb_float_new_in_heap(double); -#if USE_FLONUM -#define RUBY_BIT_ROTL(v, n) (((v) << (n)) | ((v) >> ((sizeof(v) * 8) - n))) -#define RUBY_BIT_ROTR(v, n) (((v) >> (n)) | ((v) << ((sizeof(v) * 8) - n))) - -static inline double -rb_float_value(VALUE v) -{ - if (FLONUM_P(v)) { - if (v != (VALUE)0x8000000000000002) { /* LIKELY */ - union { - double d; - VALUE v; - } t; - - VALUE b63 = (v >> 63); - /* e: xx1... -> 011... */ - /* xx0... -> 100... */ - /* ^b63 */ - t.v = RUBY_BIT_ROTR((2 - b63) | (v & ~0x03), 3); - return t.d; - } - else { - return 0.0; - } - } - else { - return ((struct RFloat *)v)->float_value; - } -} - -static inline VALUE -rb_float_new(double d) -{ - union { - double d; - VALUE v; - } t; - int bits; - - t.d = d; - bits = (int)((VALUE)(t.v >> 60) & 0x7); - /* bits contains 3 bits of b62..b60. */ - /* bits - 3 = */ - /* b011 -> b000 */ - /* b100 -> b001 */ - - if (t.v != 0x3000000000000000 /* 1.72723e-77 */ && - !((bits-3) & ~0x01)) { - return (RUBY_BIT_ROTL(t.v, 3) & ~(VALUE)0x01) | 0x02; - } - else { - if (t.v == (VALUE)0) { - /* +0.0 */ - return 0x8000000000000002; - } - else { - /* out of range */ - return rb_float_new_in_heap(d); - } - } -} - -#else /* USE_FLONUM */ - -static inline double -rb_float_value(VALUE v) -{ - return ((struct RFloat *)v)->float_value; -} - -static inline VALUE -rb_float_new(double d) -{ - return rb_float_new_in_heap(d); -} -#endif - #define RFLOAT_VALUE(v) rb_float_value(v) #define DBL2NUM(dbl) rb_float_new(dbl) |