From 9f17fb842d35b109c895ddcda19e03da3d412bc9 Mon Sep 17 00:00:00 2001
From: Martin Ridgers <martin.ridgers@epicgames.com>
Date: Wed, 8 Sep 2021 16:27:28 +0200
Subject: Use endian swapping __builtin_bswap*() with GCC-compatible compilers

---
 zencore/include/zencore/endian.h | 12 ++++++++++++
 1 file changed, 12 insertions(+)

(limited to 'zencore/include')

diff --git a/zencore/include/zencore/endian.h b/zencore/include/zencore/endian.h
index 1f79a59e8..d44a27b01 100644
--- a/zencore/include/zencore/endian.h
+++ b/zencore/include/zencore/endian.h
@@ -7,19 +7,31 @@ namespace zen {
 inline uint16_t
 ByteSwap(uint16_t x)
 {
+#if ZEN_COMPILER_MSC
 	return _byteswap_ushort(x);
+#else
+	return __builtin_bswap16(x);
+#endif
 }
 
 inline uint32_t
 ByteSwap(uint32_t x)
 {
+#if ZEN_COMPILER_MSC
 	return _byteswap_ulong(x);
+#else
+	return __builtin_bswap32(x);
+#endif
 }
 
 inline uint64_t
 ByteSwap(uint64_t x)
 {
+#if ZEN_COMPILER_MSC
 	return _byteswap_uint64(x);
+#else
+	return __builtin_bswap64(x);
+#endif
 }
 
 inline uint16_t
-- 
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