Fix Issue 20122 - core.atomic.cas discards result on failure

Added overloads that return the result.
dlang · Aug 13, 2019 · e7c4a82 · e7c4a82
1 parent 7387270
commit e7c4a82
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diff --git a/changelog/atomic_cas.dd b/changelog/atomic_cas.dd
@@ -0,0 +1,4 @@
+Added overloads for `core.atomic.cas` which don't discard their result.
+
+Existing `core.atomic.cas` functions discard the result, which make it impossible to implement certain operations.
+A new set of overloads was added which take `ifThis` by pointer and write the result back to the argument.
diff --git a/src/core/atomic.d b/src/core/atomic.d
@@ -4,7 +4,7 @@
  *
  * Copyright: Copyright Sean Kelly 2005 - 2016.
  * License:   $(LINK2 http://www.boost.org/LICENSE_1_0.txt, Boost License 1.0)
- * Authors:   Sean Kelly, Alex Rønne Petersen
+ * Authors:   Sean Kelly, Alex Rønne Petersen, Manu Evans
  * Source:    $(DRUNTIMESRC core/_atomic.d)
  */