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fwrite_le.c: optimize for FWRITE_LE_NO_MODIFICATION case

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Intel A80486DX2-66 2023-12-31 15:38:28 +03:00
parent ff5608e0d0
commit b3a635076b
Signed by: 80486DX2-66
GPG Key ID: 83631EF27054609B
1 changed files with 5 additions and 0 deletions
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src/fwrite_le.c
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@ -49,9 +49,14 @@ size_t fwrite_le(void* ptr, size_t size, size_t count, FILE* stream) {
const size_t div_size = size >> 1; // divide by 2 const size_t div_size = size >> 1; // divide by 2
for (size_t j = 0; j < div_size; j++) { for (size_t j = 0; j < div_size; j++) {
const size_t old_pos = i + j, new_pos = i + size - j - 1; const size_t old_pos = i + j, new_pos = i + size - j - 1;
#if FWRITE_LE_NO_MODIFICATION
bytes[old_pos] = ptr[new_pos];
bytes[new_pos] = ptr[old_pos];
#else
uint8_t temp = bytes[old_pos]; uint8_t temp = bytes[old_pos];
bytes[old_pos] = bytes[new_pos]; bytes[old_pos] = bytes[new_pos];
bytes[new_pos] = temp; bytes[new_pos] = temp;
#endif
} }
} }