From 56f217f3f8b43a02a72bf28e049f9a20738843c8 Mon Sep 17 00:00:00 2001 From: Lennart Poettering Date: Fri, 18 Sep 2009 04:05:54 +0200 Subject: macro: introduce PA_INT_TYPE_MIN, PA_INT_TYPE_MAX, PA_INT_TYPE_SIGNED macros --- src/pulsecore/macro.h | 12 ++++++++++++ 1 file changed, 12 insertions(+) diff --git a/src/pulsecore/macro.h b/src/pulsecore/macro.h index bffcc264..9a5a2670 100644 --- a/src/pulsecore/macro.h +++ b/src/pulsecore/macro.h @@ -304,6 +304,18 @@ typedef int pa_bool_t; #define pa_memzero(x,l) (memset((x), 0, (l))) #define pa_zero(x) (pa_memzero(&(x), sizeof(x))) +#define PA_INT_TYPE_SIGNED(type) (!!((type) 0 > (type) -1)) + +#define PA_INT_TYPE_MAX(type) \ + ((type) (PA_INT_TYPE_SIGNED(type) \ + ? ~(~(type) 0 << (8*sizeof(type)-1)) \ + : (type) -1)) + +#define PA_INT_TYPE_MIN(type) \ + ((type) (PA_INT_TYPE_SIGNED(type) \ + ? (~(type) 0 << (8*sizeof(type)-1)) \ + : (type) 0)) + /* We include this at the very last place */ #include -- cgit