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 /ctype.h | |
| parent | ac27402efa3cb4d2e433a2a2f51e9ac34accf084 (diff) | |
use C2x style header versioning for include guards
Diffstat (limited to 'ctype.h')
| -rw-r--r-- | ctype.h | 10 |
1 files changed, 7 insertions, 3 deletions
@@ -1,5 +1,9 @@ -#ifndef __CTYPE_H__ -#define __CTYPE_H__ +#ifndef __STDC_VERSION_CTYPE_H__ +#if defined __STDC_VERSION__ +#define __STDC_VERSION_CTYPE_H__ __STDC_VERSION__ +#else +#define __STDC_VERSION_CTYPE_H__ 1 +#endif /* UNG's Not GNU @@ -43,7 +47,7 @@ int isxdigit(int); int tolower(int); int toupper(int); -#if (defined __STDC_VERSION__ && 199901L <= __STDC_VERSION__) +#if (199901L <= __STDC_VERSION_CTYPE_H__) int isblank(int); #endif |