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-rw-r--r--include/endianness.h30
1 files changed, 30 insertions, 0 deletions
diff --git a/include/endianness.h b/include/endianness.h
index 2d6ad0e..972e51b 100644
--- a/include/endianness.h
+++ b/include/endianness.h
@@ -19,6 +19,13 @@
#endif
#endif
+#ifndef __BYTE_ORDER
+#ifndef _WIN32
+#warning __BYTE_ORDER is not defined, assuming little endian
+#endif
+#define __BYTE_ORDER __LITTLE_ENDIAN
+#endif
+
#ifndef be16toh
#if __BYTE_ORDER == __BIG_ENDIAN
#define be16toh(x) (x)
@@ -31,6 +38,18 @@
#define htobe16 be16toh
#endif
+#ifndef le16toh
+#if __BYTE_ORDER == __BIG_ENDIAN
+#define le16toh(x) ((((x) & 0xFF00) >> 8) | (((x) & 0x00FF) << 8))
+#else
+#define le16toh(x) (x)
+#endif
+#endif
+
+#ifndef htole16
+#define htole16 le16toh
+#endif
+
#ifndef __bswap_32
#define __bswap_32(x) ((((x) & 0xFF000000) >> 24) \
| (((x) & 0x00FF0000) >> 8) \
@@ -97,4 +116,15 @@
#define htole64 le64toh
#endif
+#if (defined(__BIG_ENDIAN__) \
+ && !defined(__FLOAT_WORD_ORDER__)) \
+ || (defined(__FLOAT_WORD_ORDER__) \
+ && __FLOAT_WORD_ORDER__ == __ORDER_BIG_ENDIAN__)
+#define float_bswap64(x) __bswap_64(x)
+#define float_bswap32(x) __bswap_32(x)
+#else
+#define float_bswap64(x) (x)
+#define float_bswap32(x) (x)
+#endif
+
#endif /* ENDIANNESS_H */