diff options
| -rw-r--r-- | sal/inc/sal/types.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sal/inc/sal/types.h b/sal/inc/sal/types.h index 1266c9ba7..c1922ea99 100644 --- a/sal/inc/sal/types.h +++ b/sal/inc/sal/types.h @@ -296,6 +296,18 @@ typedef void * sal_Handle; #define SAL_EXCEPTION_DLLPRIVATE #endif +/** Use this as markup for functions and methods whose return value must be + checked. + + Compilers that support a construct of this nature will emit a compile + time warning on unchecked return value. +*/ +#if (__GNUC__ > 3 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4) +# define SAL_WARN_UNUSED_RESULT __attribute__((warn_unused_result)) +#else +# define SAL_WARN_UNUSED_RESULT +#endif + /** Use this for pure virtual classes, e.g. class SAL_NO_VTABLE Foo { ... This hinders the compiler from setting a generic vtable stating that a pure virtual function was called and thus slightly reduces code size. |