Changeset 205577 in webkit

Timestamp:

Sep 7, 2016 5:40:17 PM (8 years ago)

Author:

commit-queue@webkit.org

Message:

bitwise_cast: allow const destination type
​https://bugs.webkit.org/show_bug.cgi?id=161719

Patch by JF Bastien <​jfbastien@apple.com> on 2016-09-07
Reviewed by Saam Barati.

• wtf/StdLibExtras.h:

(WTF::bitwise_cast): allow const To to = bitwise_cast<const To>(from);

Location:

trunk/Source/WTF

Files:

• ChangeLog (modified) (1 diff)
• wtf/StdLibExtras.h (modified) (1 diff)

trunk/Source/WTF/ChangeLog

@@ +1 @@
+2016-09-07  JF Bastien  <jfbastien@apple.com>
+
+        bitwise_cast: allow const destination type
+        https://bugs.webkit.org/show_bug.cgi?id=161719
+
+        Reviewed by Saam Barati.
+
+        * wtf/StdLibExtras.h:
+        (WTF::bitwise_cast): allow `const To to = bitwise_cast<const To>(from);`
+
 2016-09-07  Mark Lam  <mark.lam@apple.com>
 

trunk/Source/WTF/wtf/StdLibExtras.h

@@ -152 +152 @@
     static_assert(__is_trivially_copyable(FromType), "bitwise_cast of non-trivially-copyable type!");
 #endif
-    ToType to{ };
+    typename std::remove_const<ToType>::type to { };
     std::memcpy(&to, &from, sizeof(to));
     return to;