diff options
| author | Gilad Ben-Yossef <giladb@ezchip.com> | 2014-08-22 10:48:15 +0300 |
|---|---|---|
| committer | Maxim Uvarov <maxim.uvarov@linaro.org> | 2014-08-22 12:30:12 +0400 |
| commit | 3ee9b44a2824457992bcafe7705b61d8e3be2b0c (patch) | |
| tree | 3f6ccedb2bd05bfe37d89a73b96c46ffe8ed2677 /include | |
| parent | 26238333b5b0896366c844aeb7253e60abd99f5a (diff) | |
odp_debug.h: backward compatible _Static_assert
Static_assert() support was only added to GCC 4.6.
Provide a weak replcement for GCC users prior to that version,
such as the default RHEL 6.x GCC, as it is better than breaking
the build.
The replacement macro is based on example from the following
email: https://sourceware.org/ml/libc-alpha/2013-12/msg00102.html
by Paul Eggert <eggart@cs.ucla.edu>, hence the CC.
Signed-off-by: Gilad Ben-Yossef <giladb@ezchip.com>
CC: Paul Eggert <eggert@cs.ucla.edu>
CC: Barry Spinney <spinney@tilera.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/odp_debug.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/odp_debug.h b/include/odp_debug.h index 9a5ea2a8..e8f60036 100644 --- a/include/odp_debug.h +++ b/include/odp_debug.h @@ -30,6 +30,17 @@ extern "C" { */ #define ODP_UNUSED __attribute__((__unused__)) +#if __GNUC__ < 4 || (__GNUC__ == 4 && (__GNUC_MINOR__ < 6)) + +/** + * _Static_assert was only added in GCC 4.6. Provide a weak replacement + * for previous versions. + */ +#define _Static_assert(e, s) extern int (*static_assert_checker (void)) \ + [sizeof (struct { unsigned int error_if_negative: (e) ? 1 : -1; })] + +#endif + #else #define ODP_DEPRECATED |