/*- * Copyright (c) 1979 The Regents of the University of California. * All rights reserved. * * Redistribution and use in source and binary forms are permitted * provided that: (1) source distributions retain this entire copyright * notice and comment, and (2) distributions including binaries display * the following acknowledgement: ``This product includes software * developed by the University of California, Berkeley and its contributors'' * in the documentation or other materials provided with the distribution * and in all advertising materials mentioning features or use of this * software. Neither the name of the University nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ #ifndef lint static char sccsid[] = "@(#)UNPACK.c 1.4 (Berkeley) 4/9/90"; #endif /* not lint */ /* * unpack(z,a,i) * * with: z and a as in pack * * semantics: for j := u to v do * a[j-u+i] := z[j] */ UNPACK(i, a, z, size_a, lb_a, ub_a, size_z) long i; /* subscript into a to begin packing */ char *a; /* pointer to structure a */ char *z; /* pointer to structure z */ long size_a; /* sizeof(a_type) */ long lb_a; /* lower bound of structure a */ long ub_a; /* (upper bound of a) - (lb_a + sizeof(z_type)) */ long size_z; /* sizeof(z_type) */ { int subscr; register char *cp; register char *zp = z; register char *limit; subscr = i - lb_a; if (subscr < 0 || subscr > ub_a) { ERROR("i = %D: Bad i to unpack(z,a,i)\n", i); return; } cp = &a[subscr * size_a]; limit = cp + size_z; do { *cp++ = *zp++; } while (cp < limit); }