From fdf92c5f3b05c874ba6ae74bb0e1477f1b3ca77f Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@duempel.org>
Date: Mon, 22 Jun 2015 14:47:06 +0200
Subject: pcm/Interleave: add "restrict" keywords

---
 src/pcm/Interleave.cxx | 6 ++++--
 src/pcm/Interleave.hxx | 3 ++-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/pcm/Interleave.cxx b/src/pcm/Interleave.cxx
index 8f2b11bd7..14ca53434 100644
--- a/src/pcm/Interleave.cxx
+++ b/src/pcm/Interleave.cxx
@@ -24,7 +24,8 @@
 #include <string.h>
 
 static void
-GenericPcmInterleave(uint8_t *dest, ConstBuffer<const uint8_t *> src,
+GenericPcmInterleave(uint8_t *gcc_restrict dest,
+		     ConstBuffer<const uint8_t *> src,
 		     size_t n_frames, size_t sample_size)
 {
 	for (size_t frame = 0; frame < n_frames; ++frame) {
@@ -37,7 +38,8 @@ GenericPcmInterleave(uint8_t *dest, ConstBuffer<const uint8_t *> src,
 }
 
 void
-PcmInterleave(void *dest, ConstBuffer<const void *> src,
+PcmInterleave(void *gcc_restrict dest,
+	      ConstBuffer<const void *> src,
 	      size_t n_frames, size_t sample_size)
 {
 	GenericPcmInterleave((uint8_t *)dest,
diff --git a/src/pcm/Interleave.hxx b/src/pcm/Interleave.hxx
index c8acbb3e8..76f1a6216 100644
--- a/src/pcm/Interleave.hxx
+++ b/src/pcm/Interleave.hxx
@@ -21,13 +21,14 @@
 #define MPD_PCM_INTERLEAVE_HXX
 
 #include "check.h"
+#include "Compiler.h"
 #include "util/ConstBuffer.hxx"
 
 /**
  * Interleave planar PCM samples from #src to #dest.
  */
 void
-PcmInterleave(void *dest, ConstBuffer<const void *> src,
+PcmInterleave(void *gcc_restrict dest, ConstBuffer<const void *> src,
 	      size_t n_frames, size_t sample_size);
 
 #endif
-- 
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