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| author | Sebastian Huber <sebastian.huber@embedded-brains.de> | 2023-08-06 13:27:27 +0000 |
|---|---|---|
| committer | Konstantin Belousov <kib@FreeBSD.org> | 2023-08-13 04:35:41 +0000 |
| commit | 4e94219d55824b19693287052edd8a1da76e3541 (patch) | |
| tree | ea10fe44be033d98c40dbf3c406fd266d7707002 | |
| parent | 79757c0a33ca0da0f079c7250b820c81520649d9 (diff) | |
| download | src-4e94219d55824b19693287052edd8a1da76e3541.tar.gz src-4e94219d55824b19693287052edd8a1da76e3541.zip | |
sys/cdefs.h: fix for use __restrict in C++
PR: 272723
(cherry picked from commit 15876d9fd83fdfa7d541ea747eb40faeade975d2)
| -rw-r--r-- | sys/sys/cdefs.h | 16 |
1 files changed, 7 insertions, 9 deletions
diff --git a/sys/sys/cdefs.h b/sys/sys/cdefs.h index 28e464122e58..3fde24f0b9e9 100644 --- a/sys/sys/cdefs.h +++ b/sys/sys/cdefs.h @@ -404,17 +404,15 @@ #endif /* - * GCC 2.95 provides `__restrict' as an extension to C90 to support the - * C99-specific `restrict' type qualifier. We happen to use `__restrict' as - * a way to define the `restrict' type qualifier without disturbing older - * software that is unaware of C99 keywords. + * We use `__restrict' as a way to define the `restrict' type qualifier + * without disturbing older software that is unaware of C99 keywords. + * GCC also provides `__restrict' as an extension to support C99-style + * restricted pointers in other language modes. */ -#if !(__GNUC__ == 2 && __GNUC_MINOR__ == 95) -#if !defined(__STDC_VERSION__) || __STDC_VERSION__ < 199901 -#define __restrict -#else +#if defined(__STDC_VERSION__) && __STDC_VERSION__ >= 199901 #define __restrict restrict -#endif +#elif !__GNUC_PREREQ__(2, 95) +#define __restrict #endif /* |