diff options
Diffstat (limited to 'cpukit/include/rtems/score/status.h')
| -rw-r--r-- | cpukit/include/rtems/score/status.h | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/cpukit/include/rtems/score/status.h b/cpukit/include/rtems/score/status.h index fe1f0e87e6..b257ccc5db 100644 --- a/cpukit/include/rtems/score/status.h +++ b/cpukit/include/rtems/score/status.h @@ -49,9 +49,11 @@ typedef enum { /** * @brief Macro to build a status code from Classic and POSIX API parts. + * + * Uses a multiplication to preserve the signedness of the POSIX status. */ #define STATUS_BUILD( classic_status, posix_status ) \ - ( ( ( (unsigned int) ( posix_status ) ) << 8 ) | ( classic_status ) ) + ( ( ( posix_status ) * 256 ) | ( classic_status ) ) /** * @brief Macro to get the Classic API status code. @@ -62,10 +64,10 @@ typedef enum { /** * @brief Macro to get the POSIX API status code. * - * Performs an arithmetic shift to reconstruct a negative POSIX status. + * Uses a division to preserve the signedness of the POSIX status. */ #define STATUS_GET_POSIX( status ) \ - ( ( ( (int) ( status ) ) | 0xff ) >> 8 ) + ( ( status ) / 256 ) /** * @brief Status codes. |