Function ReadBE32

src/simplicity/sha256.h:34–39

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

 * Precondition: unsigned char b[4]
 */
static inline uint32_t ReadBE32(const unsigned char* b) {
  return (uint32_t)(b[0]) << 24
       | (uint32_t)(b[1] & 0xff) << 16
       | (uint32_t)(b[2] & 0xff) << 8
       | (uint32_t)(b[3] & 0xff);
}

/* Unpacks the 8 least significant bytes from a 'uint_fast64_t' into an 'unsigned char' array in "big endian" order.
 *