memcpy.h

   1 /* Header for optimized implementations of memcpy() */
   2
   3 #ifndef MEMCPY_H_
   4 #define MEMCPY_H_
   5
   6 #ifdef __cplusplus
   7 #include <cstring>
   8 #define BEGIN_C_DECL extern "C" {
   9 #define END_C_DECL }
  10 #else
  11 #include <string.h>
  12 #define BEGIN_C_DECL
  13 #define END_C_DECL
  14 #endif
  15
  16 BEGIN_C_DECL
  17
  18 #if defined(WITH_X86_MMX)
  19
  20 #undef memcpy
  21 #define memcpy(a, b, c) mmx_memcpy(a, b, c)
  22 extern void mmx_memcpy(void *, void *, size_t);
  23
  24 #elif defined(WITH_X86_ASM)
  25
  26 #undef memcpy
  27 #define memcpy(a, b, c) asm_memcpy(a, b, c)
  28 extern void asm_memcpy(void *, void *, size_t);
  29
  30 #endif
  31
  32 END_C_DECL
  33
  34 #endif /* MEMCPY_H_ */