diff options
| author | Jakob Kaivo <jkk@ung.org> | 2022-04-26 10:59:50 -0400 |
|---|---|---|
| committer | Jakob Kaivo <jkk@ung.org> | 2022-04-26 10:59:50 -0400 |
| commit | d29196a493b0d63ea543af2cab1db062ae39fce2 (patch) | |
| tree | dbbbbfff7e201a36f98c977e2405fe6a00d8e35d /iso646.h | |
| parent | ac27402efa3cb4d2e433a2a2f51e9ac34accf084 (diff) | |
use C2x style header versioning for include guards
Diffstat (limited to 'iso646.h')
| -rw-r--r-- | iso646.h | 10 |
1 files changed, 7 insertions, 3 deletions
@@ -1,5 +1,9 @@ -#ifndef __ISO646_H__ -#define __ISO646_H__ +#ifndef __STDC_VERSION_ISO646_H__ +#if defined __STDC_VERSION__ +#define __STDC_VERSION_ISO646_H__ __STDC_VERSION__ +#else +#define __STDC_VERSION_ISO646_H__ 1 +#endif /* UNG's Not GNU @@ -27,7 +31,7 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ -#if !(defined __STDC_VERSION__ && 199409L <= __STDC_VERSION__) +#if (__STDC_VERSION_ISO646_H__ < 199409L) # error <iso646.h> requires C95 or higher #endif |