From fee9f1482c0f593b43f88b2fd589c10d5176e639 Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@musicpd.org>
Date: Thu, 26 Oct 2017 12:28:21 +0200
Subject: [PATCH] pcm/Pack: add "noexcept"

---
 src/pcm/PcmPack.cxx | 12 +++++++-----
 src/pcm/PcmPack.hxx |  9 ++++++---
 2 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/src/pcm/PcmPack.cxx b/src/pcm/PcmPack.cxx
index 47d59b32b..5c9f18fb2 100644
--- a/src/pcm/PcmPack.cxx
+++ b/src/pcm/PcmPack.cxx
@@ -21,7 +21,7 @@
 #include "system/ByteOrder.hxx"
 
 static void
-pack_sample(uint8_t *dest, const int32_t *src0)
+pack_sample(uint8_t *dest, const int32_t *src0) noexcept
 {
 	const uint8_t *src = (const uint8_t *)src0;
 
@@ -34,7 +34,7 @@ pack_sample(uint8_t *dest, const int32_t *src0)
 }
 
 void
-pcm_pack_24(uint8_t *dest, const int32_t *src, const int32_t *src_end)
+pcm_pack_24(uint8_t *dest, const int32_t *src, const int32_t *src_end) noexcept
 {
 	/* duplicate loop to help the compiler's optimizer (constant
 	   parameter to the pack_sample() inline function) */
@@ -49,7 +49,7 @@ pcm_pack_24(uint8_t *dest, const int32_t *src, const int32_t *src_end)
  * Construct a signed 24 bit integer from three bytes into a int32_t.
  */
 static constexpr int32_t
-ConstructS24(uint8_t low, uint8_t mid, uint8_t high)
+ConstructS24(uint8_t low, uint8_t mid, uint8_t high) noexcept
 {
 	return int32_t(low) | (int32_t(mid) << 8) | (int32_t(high) << 16) |
 		/* extend the sign bit */
@@ -87,7 +87,8 @@ ReadS24(const uint8_t *src) noexcept
 }
 
 void
-pcm_unpack_24(int32_t *dest, const uint8_t *src, const uint8_t *src_end)
+pcm_unpack_24(int32_t *dest,
+	      const uint8_t *src, const uint8_t *src_end) noexcept
 {
 	while (src < src_end) {
 		*dest++ = ReadS24(src);
@@ -96,7 +97,8 @@ pcm_unpack_24(int32_t *dest, const uint8_t *src, const uint8_t *src_end)
 }
 
 void
-pcm_unpack_24be(int32_t *dest, const uint8_t *src, const uint8_t *src_end)
+pcm_unpack_24be(int32_t *dest,
+		const uint8_t *src, const uint8_t *src_end) noexcept
 {
 	while (src < src_end) {
 		*dest++ = ReadS24BE(src);
diff --git a/src/pcm/PcmPack.hxx b/src/pcm/PcmPack.hxx
index 9b4d58c08..fe4c0613d 100644
--- a/src/pcm/PcmPack.hxx
+++ b/src/pcm/PcmPack.hxx
@@ -37,7 +37,8 @@
  * @param src the source buffer
  */
 void
-pcm_pack_24(uint8_t *dest, const int32_t *src, const int32_t *src_end);
+pcm_pack_24(uint8_t *dest,
+	    const int32_t *src, const int32_t *src_end) noexcept;
 
 /**
  * Converts packed 24 bit samples (3 bytes per sample) to padded 24
@@ -47,13 +48,15 @@ pcm_pack_24(uint8_t *dest, const int32_t *src, const int32_t *src_end);
  * @param src the source buffer (array of triples)
  */
 void
-pcm_unpack_24(int32_t *dest, const uint8_t *src, const uint8_t *src_end);
+pcm_unpack_24(int32_t *dest,
+	      const uint8_t *src, const uint8_t *src_end) noexcept;
 
 /**
  * Like pcm_unpack_24(), but assume the source byte order is
  * big-endian.  The destination byte order ia always native.
  */
 void
-pcm_unpack_24be(int32_t *dest, const uint8_t *src, const uint8_t *src_end);
+pcm_unpack_24be(int32_t *dest,
+		const uint8_t *src, const uint8_t *src_end) noexcept;
 
 #endif