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Test endianness with compiler built-in #175

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4 changes: 2 additions & 2 deletions CRC.m
Original file line number Diff line number Diff line change
Expand Up @@ -32,7 +32,7 @@ uint32_t XADCalculateCRC(uint32_t prevcrc,const uint8_t *buffer,int length,const
return crc;
}

#if XAD_BYTE_ORDER_BIG_ENDIAN
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
static inline uint32_t swap(uint32_t x)
{
#if defined(__GNUC__) || defined(__clang__)
Expand All @@ -58,7 +58,7 @@ uint32_t XADCalculateCRCFast(uint32_t prevcrc,const uint8_t *buffer,int length,
{
for (size_t unrolling = 0; unrolling < Unroll; unrolling++)
{
#if XAD_BYTE_ORDER_BIG_ENDIAN
#if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
uint32_t a = *pos++ ^ swap(crc);
uint32_t b = *pos++;
uint32_t c = *pos++;
Expand Down