14887Schin /*********************************************************************** 24887Schin * * 34887Schin * This software is part of the ast package * 4*12068SRoger.Faulkner@Oracle.COM * Copyright (c) 1985-2010 AT&T Intellectual Property * 54887Schin * and is licensed under the * 64887Schin * Common Public License, Version 1.0 * 78462SApril.Chin@Sun.COM * by AT&T Intellectual Property * 84887Schin * * 94887Schin * A copy of the License is available at * 104887Schin * http://www.opensource.org/licenses/cpl1.0.txt * 114887Schin * (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 124887Schin * * 134887Schin * Information and Software Systems Research * 144887Schin * AT&T Research * 154887Schin * Florham Park NJ * 164887Schin * * 174887Schin * Glenn Fowler <gsf@research.att.com> * 184887Schin * David Korn <dgk@research.att.com> * 194887Schin * Phong Vo <kpv@research.att.com> * 204887Schin * * 214887Schin ***********************************************************************/ 224887Schin #pragma prototyped 234887Schin /* 244887Schin * Glenn Fowler 254887Schin * AT&T Research 264887Schin * 274887Schin * internal representation conversion support 284887Schin */ 294887Schin 304887Schin #include <ast.h> 314887Schin #include <swap.h> 324887Schin 334887Schin /* 344887Schin * get int_n from b according to op 354887Schin */ 364887Schin 374887Schin intmax_t swapget(int op,const void * b,int n)384887Schinswapget(int op, const void* b, int n) 394887Schin { 404887Schin register unsigned char* p; 414887Schin register unsigned char* d; 424887Schin intmax_t v; 434887Schin unsigned char tmp[sizeof(intmax_t)]; 444887Schin 454887Schin if (n > sizeof(intmax_t)) 464887Schin n = sizeof(intmax_t); 474887Schin if (op) swapmem(op, b, d = tmp, n); 484887Schin else d = (unsigned char*)b; 494887Schin p = d + n; 504887Schin v = 0; 514887Schin while (d < p) 524887Schin { 534887Schin v <<= CHAR_BIT; 544887Schin v |= *d++; 554887Schin } 564887Schin return v; 574887Schin } 58