Function ReadBE64

src/simplicity/sha256.h:19–28

Packs (the 8 least significant bits of) 8 'unsigned char's into a 'uint_fast64_t' in "big endian" order. * * Precondition: unsigned char b[8] */

 * Precondition: unsigned char b[8]
 */
static inline uint_fast64_t ReadBE64(const unsigned char* b) {
  return (uint_fast64_t)(b[0] & 0xff) << 56
       | (uint_fast64_t)(b[1] & 0xff) << 48
       | (uint_fast64_t)(b[2] & 0xff) << 40
       | (uint_fast64_t)(b[3] & 0xff) << 32
       | (uint_fast64_t)(b[4] & 0xff) << 24
       | (uint_fast64_t)(b[5] & 0xff) << 16
       | (uint_fast64_t)(b[6] & 0xff) << 8
       | (uint_fast64_t)(b[7] & 0xff);
}

/* Packs (the 8 least significant bits of) 4 'unsigned char's into a 'uint32_t' in "big endian" order.
 *