InterlockedAdd -> InterlockedExchangeAdd for better portability (InterlockedAdd is not always supported)

2013-07-29 22:46:36 -07:00
parent 663ebf7857
commit fa93cb7d0b
1 changed files with 1 additions and 1 deletions
--- a/examples/tasksys.cpp
+++ b/examples/tasksys.cpp
@@ -365,7 +365,7 @@ lAtomicCompareAndSwap32(volatile int32_t *v, int32_t newValue, int32_t oldValue)
 static inline int32_t 
 lAtomicAdd(volatile int32_t *v, int32_t delta) {
 #ifdef ISPC_IS_WINDOWS
-    return InterlockedAdd((volatile LONG *)v, delta);
+    return InterlockedExchangeAdd((volatile LONG *)v, delta)+delta;
 #else
    return __sync_fetch_and_add(v, delta);
 #endif