diff options
| author |  Justus Winter <4winter@informatik.uni-hamburg.de> | 2012-09-24 17:21:16 +0200 |
|---|---|---|
| committer |  David Bremner <bremner@debian.org> | 2012-09-27 12:50:22 -0300 |
| commit | 25d97b97914e2bddc1b1d82ac5ebbe8608ad8e74 (patch) | |
| tree | 06aa8feb57533ac964f819722576a2f79db1e0ec /compat | |
| parent | da12807734cc90d8bf78ce5814636aaf5a18827b (diff) | |
Provide a NORETURN_ATTRIBUTE macro similar to PRINTF_ATTRIBUTE
This attribute is understood by gcc since version 2.5. clang provides
support for testing for function attributes using __has_attribute. For
other compilers this macro evaluates to the empty string.
Signed-off-by: Justus Winter <4winter@informatik.uni-hamburg.de>
Diffstat (limited to 'compat')
| -rw-r--r-- | compat/function-attributes.h | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/compat/function-attributes.h b/compat/function-attributes.h index 18f90903..8450a17d 100644 --- a/compat/function-attributes.h +++ b/compat/function-attributes.h @@ -28,4 +28,20 @@ #define __has_attribute(x) 0 #endif +/* Provide a NORETURN_ATTRIBUTE macro similar to PRINTF_ATTRIBUTE from + * talloc. + * + * This attribute is understood by gcc since version 2.5. clang + * provides support for testing for function attributes. + */ +#ifndef NORETURN_ATTRIBUTE +#if (__GNUC__ >= 3 || \ + (__GNUC__ == 2 && __GNUC_MINOR__ >= 5) || \ + __has_attribute (noreturn)) +#define NORETURN_ATTRIBUTE __attribute__ ((noreturn)) +#else +#define NORETURN_ATTRIBUTE +#endif +#endif + #endif |