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zlib.c: suppress warning

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* ext/zlib/zlib.c (zlib_mem_alloc): suppress unused-value warning.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@38047 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2012-11-30 09:50:30 +00:00
parent 719e0cd530
commit 578deb65b0
1 changed files with 3 additions and 3 deletions
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6
ext/zlib/zlib.c
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@ -21,8 +21,8 @@
# define VALGRIND_MAKE_MEM_UNDEFINED(p, n) VALGRIND_MAKE_WRITABLE((p), (n))
# endif
#else
# define VALGRIND_MAKE_MEM_DEFINED(p, n) /* empty */
# define VALGRIND_MAKE_MEM_UNDEFINED(p, n) /* empty */
# define VALGRIND_MAKE_MEM_DEFINED(p, n) 0
# define VALGRIND_MAKE_MEM_UNDEFINED(p, n) 0
#endif
#define RUBY_ZLIB_VERSION "0.6.0"
@ -588,7 +588,7 @@ zlib_mem_alloc(voidpf opaque, uInt items, uInt size)
deflate is performing a conditional jump that depends on an
uninitialized value. Isn't that a bug?
http://www.zlib.net/zlib_faq.html#faq36 */
VALGRIND_MAKE_MEM_DEFINED(p, items * size);
(void)VALGRIND_MAKE_MEM_DEFINED(p, items * size);
return p;
}