Changeset 62426 in vbox

Timestamp:

Jul 22, 2016 11:29:41 AM (9 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

108977

Message:

iprt/cdefs.h: RT_LO_U8,U16,U32: workaround for level 4 MSC warnings when used with constants.

File:

• trunk/include/iprt/cdefs.h (modified) (3 diffs)

trunk/include/iprt/cdefs.h

@@ -2279 +2279 @@
 #ifdef __GNUC__
 # define RT_LO_U8(a)    __extension__ ({ AssertCompile(sizeof((a)) == sizeof(uint16_t)); (uint8_t)(a); })
+#elif defined(_MSC_VER) /* shut up cast truncates constant value warnings */
+# define RT_LO_U8(a)                            ( (uint8_t)(UINT8_MAX & (a)) )
 #else
 # define RT_LO_U8(a)                            ( (uint8_t)(a) )
@@ -2294 +2296 @@
 #ifdef __GNUC__
 # define RT_LO_U16(a)   __extension__ ({ AssertCompile(sizeof((a)) == sizeof(uint32_t)); (uint16_t)(a); })
+#elif defined(_MSC_VER) /* shut up cast truncates constant value warnings */
+# define RT_LO_U16(a)                           ( (uint16_t)(UINT16_MAX & (a)) )
 #else
 # define RT_LO_U16(a)                           ( (uint16_t)(a) )
@@ -2309 +2313 @@
 #ifdef __GNUC__
 # define RT_LO_U32(a)   __extension__ ({ AssertCompile(sizeof((a)) == sizeof(uint64_t)); (uint32_t)(a); })
+#elif defined(_MSC_VER) /* shut up cast truncates constant value warnings */
+# define RT_LO_U32(a)                           ( (uint32_t)(UINT32_MAX & (a)) )
 #else
 # define RT_LO_U32(a)                           ( (uint32_t)(a) )