1*4661abc7SAntonio Nino Diaz /* 2*4661abc7SAntonio Nino Diaz * Copyright (c) 2013-2018, ARM Limited and Contributors. All rights reserved. 3*4661abc7SAntonio Nino Diaz * 4*4661abc7SAntonio Nino Diaz * SPDX-License-Identifier: BSD-3-Clause 5*4661abc7SAntonio Nino Diaz */ 6*4661abc7SAntonio Nino Diaz 7*4661abc7SAntonio Nino Diaz #include <stddef.h> 8*4661abc7SAntonio Nino Diaz 9*4661abc7SAntonio Nino Diaz int memcmp(const void *s1, const void *s2, size_t len) 10*4661abc7SAntonio Nino Diaz { 11*4661abc7SAntonio Nino Diaz const unsigned char *s = s1; 12*4661abc7SAntonio Nino Diaz const unsigned char *d = s2; 13*4661abc7SAntonio Nino Diaz unsigned char sc; 14*4661abc7SAntonio Nino Diaz unsigned char dc; 15*4661abc7SAntonio Nino Diaz 16*4661abc7SAntonio Nino Diaz while (len--) { 17*4661abc7SAntonio Nino Diaz sc = *s++; 18*4661abc7SAntonio Nino Diaz dc = *d++; 19*4661abc7SAntonio Nino Diaz if (sc - dc) 20*4661abc7SAntonio Nino Diaz return (sc - dc); 21*4661abc7SAntonio Nino Diaz } 22*4661abc7SAntonio Nino Diaz 23*4661abc7SAntonio Nino Diaz return 0; 24*4661abc7SAntonio Nino Diaz } 25