diff options
Diffstat (limited to 'src/pulsecore/macro.h')
-rw-r--r-- | src/pulsecore/macro.h | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/pulsecore/macro.h b/src/pulsecore/macro.h index ce88c1b9..bffcc264 100644 --- a/src/pulsecore/macro.h +++ b/src/pulsecore/macro.h @@ -80,6 +80,12 @@ static inline size_t PA_PAGE_ALIGN(size_t l) { #define PA_ELEMENTSOF(x) (sizeof(x)/sizeof((x)[0])) +#if defined(__GNUC__) + #define PA_DECLARE_ALIGNED(n,t,v) t v __attribute__ ((aligned (n))) +#else + #define PA_DECLARE_ALIGNED(n,t,v) t v +#endif + /* The users of PA_MIN and PA_MAX, PA_CLAMP, PA_ROUND_UP should be * aware that these macros on non-GCC executed code with side effects * twice. It is thus considered misuse to use code with side effects @@ -157,6 +163,17 @@ static inline size_t PA_PAGE_ALIGN(size_t l) { #define PA_ROUND_DOWN(a, b) (((a) / (b)) * (b)) #endif +#ifdef __GNUC__ +#define PA_CLIP_SUB(a, b) \ + __extension__ ({ \ + typeof(a) _a = (a); \ + typeof(b) _b = (b); \ + _a > _b ? _a - _b : 0; \ + }) +#else +#define PA_CLIP_SUB(a, b) ((a) > (b) ? (a) - (b) : 0) +#endif + /* This type is not intended to be used in exported APIs! Use classic "int" there! */ #ifdef HAVE_STD_BOOL typedef _Bool pa_bool_t; |