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Code Issues Releases Wiki Activity

util: Move build assertion macros to compiler.h.

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Signed-off-by: Ben Warren <ben@skyportsystems.com>
Signed-off-by: Ben Pfaff <blp@ovn.org>
This commit is contained in:
Ben Warren
2016-03-25 14:10:25 -07:00
committed by Ben Pfaff
parent 64c967795b
commit 3467a4d3d3
2 changed files with 30 additions and 28 deletions
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30
include/openvswitch/compiler.h
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@@ -228,4 +228,34 @@
#define OVS_PREFETCH_WRITE(addr)
#endif
/* Build assertions. */
#ifdef __CHECKER__
#define BUILD_ASSERT(EXPR) ((void) 0)
#define BUILD_ASSERT_DECL(EXPR) extern int (*build_assert(void))[1]
#elif !defined(__cplusplus)
/* Build-time assertion building block. */
#define BUILD_ASSERT__(EXPR) \
sizeof(struct { unsigned int build_assert_failed : (EXPR) ? 1 : -1; })
/* Build-time assertion for use in a statement context. */
#define BUILD_ASSERT(EXPR) (void) BUILD_ASSERT__(EXPR)
/* Build-time assertion for use in a declaration context. */
#define BUILD_ASSERT_DECL(EXPR) \
extern int (*build_assert(void))[BUILD_ASSERT__(EXPR)]
#else /* __cplusplus */
#include <boost/static_assert.hpp>
#define BUILD_ASSERT BOOST_STATIC_ASSERT
#define BUILD_ASSERT_DECL BOOST_STATIC_ASSERT
#endif /* __cplusplus */
#ifdef __GNUC__
#define BUILD_ASSERT_GCCONLY(EXPR) BUILD_ASSERT(EXPR)
#define BUILD_ASSERT_DECL_GCCONLY(EXPR) BUILD_ASSERT_DECL(EXPR)
#else
#define BUILD_ASSERT_GCCONLY(EXPR) ((void) 0)
#define BUILD_ASSERT_DECL_GCCONLY(EXPR) ((void) 0)
#endif
#endif /* compiler.h */

28
lib/util.h
View File

@@ -39,34 +39,6 @@
#endif
#endif
#ifdef __CHECKER__
#define BUILD_ASSERT(EXPR) ((void) 0)
#define BUILD_ASSERT_DECL(EXPR) extern int (*build_assert(void))[1]
#elif !defined(__cplusplus)
/* Build-time assertion building block. */
#define BUILD_ASSERT__(EXPR) \
sizeof(struct { unsigned int build_assert_failed : (EXPR) ? 1 : -1; })
/* Build-time assertion for use in a statement context. */
#define BUILD_ASSERT(EXPR) (void) BUILD_ASSERT__(EXPR)
/* Build-time assertion for use in a declaration context. */
#define BUILD_ASSERT_DECL(EXPR) \
extern int (*build_assert(void))[BUILD_ASSERT__(EXPR)]
#else /* __cplusplus */
#include <boost/static_assert.hpp>
#define BUILD_ASSERT BOOST_STATIC_ASSERT
#define BUILD_ASSERT_DECL BOOST_STATIC_ASSERT
#endif /* __cplusplus */
#ifdef __GNUC__
#define BUILD_ASSERT_GCCONLY(EXPR) BUILD_ASSERT(EXPR)
#define BUILD_ASSERT_DECL_GCCONLY(EXPR) BUILD_ASSERT_DECL(EXPR)
#else
#define BUILD_ASSERT_GCCONLY(EXPR) ((void) 0)
#define BUILD_ASSERT_DECL_GCCONLY(EXPR) ((void) 0)
#endif
extern char *program_name;
#define __ARRAY_SIZE_NOCHECK(ARRAY) (sizeof(ARRAY) / sizeof((ARRAY)[0]))