1N/A/***********************************************************************
1N/A* *
1N/A* This software is part of the ast package *
1N/A* Copyright (c) 1985-2011 AT&T Intellectual Property *
1N/A* and is licensed under the *
1N/A* Common Public License, Version 1.0 *
1N/A* by AT&T Intellectual Property *
1N/A* *
1N/A* A copy of the License is available at *
1N/A* http://www.opensource.org/licenses/cpl1.0.txt *
1N/A* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) *
1N/A* *
1N/A* Information and Software Systems Research *
1N/A* AT&T Research *
1N/A* Florham Park NJ *
1N/A* *
1N/A* Glenn Fowler <gsf@research.att.com> *
1N/A* David Korn <dgk@research.att.com> *
1N/A* Phong Vo <kpv@research.att.com> *
1N/A* *
1N/A***********************************************************************/
1N/A#pragma prototyped
1N/A/*
1N/A * Glenn Fowler
1N/A * AT&T Research
1N/A *
1N/A * internal representation conversion support
1N/A */
1N/A
1N/A#include <ast.h>
1N/A#include <swap.h>
1N/A
1N/A/*
1N/A * get int_n from b according to op
1N/A */
1N/A
1N/Aintmax_t
1N/Aswapget(int op, const void* b, int n)
1N/A{
1N/A register unsigned char* p;
1N/A register unsigned char* d;
1N/A intmax_t v;
1N/A unsigned char tmp[sizeof(intmax_t)];
1N/A
1N/A if (n > sizeof(intmax_t))
1N/A n = sizeof(intmax_t);
1N/A if (op) swapmem(op, b, d = tmp, n);
1N/A else d = (unsigned char*)b;
1N/A p = d + n;
1N/A v = 0;
1N/A while (d < p)
1N/A {
1N/A v <<= CHAR_BIT;
1N/A v |= *d++;
1N/A }
1N/A return v;
1N/A}