* numeric.c (rb_num_to_uint): fix 32bit logic.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@29481 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
naruse 2010-10-13 05:58:35 +00:00
Родитель a01e628318
Коммит e79fbf3dfe
2 изменённых файлов: 9 добавлений и 2 удалений

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@ -1,3 +1,7 @@
Wed Oct 13 14:58:09 2010 NARUSE, Yui <naruse@ruby-lang.org>
* numeric.c (rb_num_to_uint): fix 32bit logic.
Wed Oct 13 12:53:43 2010 NARUSE, Yui <naruse@ruby-lang.org>
* numeric.c (rb_num_to_uint): added to check the range of arguments.

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@ -122,7 +122,9 @@ rb_num_to_uint(VALUE val, unsigned int *ret)
#define NUMERR_TOOLARGE 3
if (FIXNUM_P(val)) {
long v = FIX2LONG(val);
if (v > UINT_MAX) return NUMERR_TOOLARGE;
#if SIZEOF_INT < SIZEOF_LONG
if (v > (long)UINT_MAX) return NUMERR_TOOLARGE;
#endif
if (v < 0) return NUMERR_NEGATIVE;
*ret = (unsigned int)v;
return 0;
@ -136,7 +138,8 @@ rb_num_to_uint(VALUE val, unsigned int *ret)
return NUMERR_TOOLARGE;
#else
/* long is 32bit */
if (RBIGNUM_LEN(x) > DIGSPERLONG) return NUMERR_TOOLARGE;
#define DIGSPERLONG (SIZEOF_LONG/SIZEOF_BDIGITS)
if (RBIGNUM_LEN(val) > DIGSPERLONG) return NUMERR_TOOLARGE;
*ret = (unsigned int)rb_big2ulong((VALUE)val);
return 0;
#endif