1 /*---------------------------------------------------------------------------* 2 * pendian.c * 3 * * 4 * Copyright 2007, 2008 Nuance Communciations, Inc. * 5 * * 6 * Licensed under the Apache License, Version 2.0 (the 'License'); * 7 * you may not use this file except in compliance with the License. * 8 * * 9 * You may obtain a copy of the License at * 10 * http://www.apache.org/licenses/LICENSE-2.0 * 11 * * 12 * Unless required by applicable law or agreed to in writing, software * 13 * distributed under the License is distributed on an 'AS IS' BASIS, * 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * 15 * See the License for the specific language governing permissions and * 16 * limitations under the License. * 17 * * 18 *---------------------------------------------------------------------------*/ 19 20 21 22 23 24 25 #include "pendian.h" 26 27 void swap_byte_order(void *buffer, size_t count, size_t itemSize) 28 { 29 char *data = (char *) buffer; 30 register char *p, *q, c; 31 32 /* Process every item */ 33 while (count > 0) 34 { 35 p = data; 36 q = data + itemSize - 1; 37 38 while (p < q) 39 { 40 c = *p; 41 *p++ = *q; 42 *q-- = c; 43 } 44 45 /* Prepare for next pass */ 46 data += itemSize; 47 count--; 48 } 49 } 50
