diff options
Diffstat (limited to 'sal/inc')
| -rw-r--r-- | sal/inc/osl/file.h | 2 | ||||
| -rw-r--r-- | sal/inc/osl/file.hxx | 2 | ||||
| -rw-r--r-- | sal/inc/sal/types.h | 12 |
3 files changed, 14 insertions, 2 deletions
diff --git a/sal/inc/osl/file.h b/sal/inc/osl/file.h index bdb7693f5..b90ea3548 100644 --- a/sal/inc/osl/file.h +++ b/sal/inc/osl/file.h @@ -732,7 +732,7 @@ oslFileError SAL_CALL osl_openFile( rtl_uString *pustrFileURL, oslFileHandle *pH @see osl_getFilePos() */ -oslFileError SAL_CALL osl_setFilePos( oslFileHandle Handle, sal_uInt32 uHow, sal_Int64 uPos ); +oslFileError SAL_CALL osl_setFilePos( oslFileHandle Handle, sal_uInt32 uHow, sal_Int64 uPos ) SAL_WARN_UNUSED_RESULT; /** Retrieve the current position of the internal pointer of an open file. diff --git a/sal/inc/osl/file.hxx b/sal/inc/osl/file.hxx index e75b59160..df57e24ff 100644 --- a/sal/inc/osl/file.hxx +++ b/sal/inc/osl/file.hxx @@ -988,7 +988,7 @@ public: @see getPos() */ - inline RC setPos( sal_uInt32 uHow, sal_Int64 uPos ) + inline RC setPos( sal_uInt32 uHow, sal_Int64 uPos ) SAL_WARN_UNUSED_RESULT { return (RC) osl_setFilePos( _pData, uHow, uPos ); } diff --git a/sal/inc/sal/types.h b/sal/inc/sal/types.h index 1266c9ba7..33ff2d989 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. |