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* numeric.c: Add description of that the results of the comparing

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operations of two NaNs are undefined.
  [#1720] [ruby-dev:38725] [ruby-core:36966]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@37546 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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mrkn 2012-11-08 00:34:55 +00:00
parent a68cc24a9e
commit 6ea34efab0
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6
ChangeLog
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@ -1,3 +1,9 @@
Thu Nov 8 09:34:00 2012 Kenta Murata <mrkn@cookpad.com>
* numeric.c: Add description of that the results of the comparing
operations of two NaNs are undefined.
[#1720] [ruby-dev:38725] [ruby-core:36966]
Thu Nov 8 04:45:21 2012 Marc-Andre Lafortune <ruby-core@marc-andre.ca>
* include/ruby/intern.h: Restore rb_enumeratorize as it was before

14
numeric.c
View file

@ -1042,6 +1042,8 @@ num_equal(VALUE x, VALUE y)
* Returns <code>true</code> only if <i>obj</i> has the same value
* as <i>flt</i>. Contrast this with <code>Float#eql?</code>, which
* requires <i>obj</i> to be a <code>Float</code>.
* The result of <code>NaN == NaN</code> is undefined, so the
* implementation-dependent value is returned.
*
* 1.0 == 1 #=> true
*
@ -1109,6 +1111,8 @@ rb_dbl_cmp(double a, double b)
* Returns -1, 0, +1 or nil depending on whether <i>flt</i> is less
* than, equal to, or greater than <i>real</i>. This is the basis for
* the tests in <code>Comparable</code>.
* The result of <code>NaN <=> NaN</code> is undefined, so the
* implementation-dependent value is returned.
*/
static VALUE
@ -1153,6 +1157,8 @@ flo_cmp(VALUE x, VALUE y)
* flt > real -> true or false
*
* <code>true</code> if <code>flt</code> is greater than <code>real</code>.
* The result of <code>NaN > NaN</code> is undefined, so the
* implementation-dependent value is returned.
*/
static VALUE
@ -1193,6 +1199,8 @@ flo_gt(VALUE x, VALUE y)
*
* <code>true</code> if <code>flt</code> is greater than
* or equal to <code>real</code>.
* The result of <code>NaN >= NaN</code> is undefined, so the
* implementation-dependent value is returned.
*/
static VALUE
@ -1232,6 +1240,8 @@ flo_ge(VALUE x, VALUE y)
* flt < real -> true or false
*
* <code>true</code> if <code>flt</code> is less than <code>real</code>.
* The result of <code>NaN < NaN</code> is undefined, so the
* implementation-dependent value is returned.
*/
static VALUE
@ -1272,6 +1282,8 @@ flo_lt(VALUE x, VALUE y)
*
* <code>true</code> if <code>flt</code> is less than
* or equal to <code>real</code>.
* The result of <code>NaN <= NaN</code> is undefined, so the
* implementation-dependent value is returned.
*/
static VALUE
@ -1313,6 +1325,8 @@ flo_le(VALUE x, VALUE y)
* Returns <code>true</code> only if <i>obj</i> is a
* <code>Float</code> with the same value as <i>flt</i>. Contrast this
* with <code>Float#==</code>, which performs type conversions.
* The result of <code>NaN.eql?(NaN)</code> is undefined, so the
* implementation-dependent value is returned.
*
* 1.0.eql?(1) #=> false
*/