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build: replace big/little endianess check to WORDS_BIGENDIAN macro

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This commit is contained in:
Alexander Alekhin
2018-08-12 21:52:41 +00:00
parent fc1aeac93e
commit acad7bbee5
1 changed files with 4 additions and 3 deletions
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7
modules/surface_matching/src/hash_murmur86.hpp
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@@ -8,6 +8,8 @@
* with support for progressive processing. * with support for progressive processing.
*/ */
#include "cvconfig.h"
/* ------------------------------------------------------------------------- */ /* ------------------------------------------------------------------------- */
/* Determine what native type to use for uint32_t */ /* Determine what native type to use for uint32_t */
@@ -89,10 +91,9 @@ void hashMurmurx86 ( const void * key, const int len, const uint seed, void * ou
#endif #endif
/* Now find best way we can to READ_UINT32 */ /* Now find best way we can to READ_UINT32 */
#if (defined(_M_IX86) || defined(__i386__) || defined(__i386) || defined(i386)) \ #ifndef WORDS_BIGENDIAN
|| (defined(__BYTE_ORDER__) && defined(__ORDER_LITTLE_ENDIAN__) && __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__)
# define READ_UINT32(ptr) (*((uint32_t*)(ptr))) # define READ_UINT32(ptr) (*((uint32_t*)(ptr)))
#elif (defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__) #elif defined(WORDS_BIGENDIAN)
&& defined(__GNUC__) && (__GNUC__>4 || (__GNUC__==4 && __GNUC_MINOR__>=3)) && defined(__GNUC__) && (__GNUC__>4 || (__GNUC__==4 && __GNUC_MINOR__>=3))
# define READ_UINT32(ptr) (__builtin_bswap32(*((uint32_t*)(ptr)))) # define READ_UINT32(ptr) (__builtin_bswap32(*((uint32_t*)(ptr))))
#endif #endif