From 1d2ef7923d28a74e08a4309b6fa3d36481d2df3b Mon Sep 17 00:00:00 2001 From: Arun Raghavan Date: Sat, 9 Oct 2010 22:30:20 +0530 Subject: volume: Use a macro to check if a volume is valid This adds a PA_VOLUME_IS_VALID() macro for checking if a given pa_volume_t is valid. This makes changes to the volume ranges simpler (just change PA_VOLUME_MAX, for example, without needing to modify any other code). --- src/pulse/volume.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'src/pulse/volume.h') diff --git a/src/pulse/volume.h b/src/pulse/volume.h index 594cf91d..9ef26f13 100644 --- a/src/pulse/volume.h +++ b/src/pulse/volume.h @@ -118,6 +118,9 @@ typedef uint32_t pa_volume_t; /** Special 'invalid' volume. \since 0.9.16 */ #define PA_VOLUME_INVALID ((pa_volume_t) UINT32_MAX) +/** Check if volume is valid. \since 0.9.22 */ +#define PA_VOLUME_IS_VALID(v) ((v) <= PA_VOLUME_MAX) + /** A structure encapsulating a per-channel volume */ typedef struct pa_cvolume { uint8_t channels; /**< Number of channels */ -- cgit