Update of /cvsroot/boost/boost/boost/interprocess/detail
In directory sc8-pr-cvs3.sourceforge.net:/tmp/cvs-serv22745/detail
Modified Files:
atomic.hpp
Log Message:
Fixed bug in atomic_dec32 for intel. Thanks to Harold Pirtle!
Index: atomic.hpp
===================================================================
RCS file: /cvsroot/boost/boost/boost/interprocess/detail/atomic.hpp,v
retrieving revision 1.2
retrieving revision 1.3
diff -u -d -r1.2 -r1.3
--- atomic.hpp 17 Dec 2006 01:22:52 -0000 1.2
+++ atomic.hpp 17 Feb 2007 11:39:41 -0000 1.3
@@ -89,15 +89,15 @@
inline boost::uint32_t atomic_dec32(volatile boost::uint32_t *mem)
{
- boost::uint32_t prev;
+ boost::uint32_t prev;
- // acts like an atomic 'return (*mem)--;'
- asm volatile ("movl $-1, %0;\n\t"
- "lock; xaddl %0, %1"
- : "=r" (prev)
- : "m" (*(mem))
- : "memory", "cc" );
- return prev;
+ // acts like an atomic 'return (*mem)--;'
+ asm volatile ("movl $-1, %0;\n\t"
+ "lock; xaddl %0, %1"
+ : "=r" (prev) //outputs
+ : "m" (*(mem)),"0" (prev) //inputs
+ : "memory", "cc" );
+ return prev;
}
inline boost::uint32_t atomic_read32(volatile boost::uint32_t *mem)
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