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authorLennart Poettering <lennart@poettering.net>2009-09-18 04:05:54 +0200
committerLennart Poettering <lennart@poettering.net>2009-09-18 04:14:37 +0200
commit56f217f3f8b43a02a72bf28e049f9a20738843c8 (patch)
tree882fed5e51da9dd85c0318907abd2a310963e008 /src/pulsecore/macro.h
parentfb4a2a1bbbd35601b5da62037c1cee40be859428 (diff)
macro: introduce PA_INT_TYPE_MIN, PA_INT_TYPE_MAX, PA_INT_TYPE_SIGNED macros
Diffstat (limited to 'src/pulsecore/macro.h')
-rw-r--r--src/pulsecore/macro.h12
1 files changed, 12 insertions, 0 deletions
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 <pulsecore/log.h>