NetBSD-5.0.2/regress/include/bitstring/bitstring_test.c
/* $NetBSD: bitstring_test.c,v 1.9 2008/04/28 20:23:04 martin Exp $ */
/*-
* Copyright (c) 1993 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* this is a simple program to test bitstring.h
* inspect the output, you should notice problems
* choose the ATT or BSD flavor
*/
#if 0
#define ATT
#else
#define BSD /*-*/
#endif
/* include the following define if you want the
* program to link. this corrects a misspeling
* in bitstring.h
*/
#define _bitstr_size bitstr_size
#include <stdio.h>
#include <stdlib.h>
/* #ifdef NOTSOGOOD */
#include "bitstring.h"
/* #else */
/* #include "gbitstring.h" */
/* #endif */
int TEST_LENGTH;
#define DECL_TEST_LENGTH 37 /* a mostly random number */
main(int argc, char *argv[])
{
void clearbits();
void printbits();
int b, i;
bitstr_t *bs;
bitstr_t bit_decl(bss, DECL_TEST_LENGTH);
if (argc > 1)
TEST_LENGTH = atoi(argv[1]);
else
TEST_LENGTH = DECL_TEST_LENGTH;
if (TEST_LENGTH < 4) {
fprintf(stderr, "TEST_LENGTH must be at least 4, but it is %d\n",
TEST_LENGTH);
exit(1);
}
(void) printf("Testing with TEST_LENGTH = %d\n\n", TEST_LENGTH);
(void) printf("test _bit_byte, _bit_mask, and bitstr_size\n");
(void) printf(" i _bit_byte(i) _bit_mask(i) bitstr_size(i)\n");
for (i=0; i<TEST_LENGTH; i++) {
(void) printf("%3d%15d%15d%15d\n",
i, _bit_byte(i), _bit_mask(i), bitstr_size(i));
}
bs = bit_alloc(TEST_LENGTH);
clearbits(bs, TEST_LENGTH);
(void) printf("\ntest bit_alloc, clearbits, bit_ffc, bit_ffs\n");
(void) printf("be: 0 -1 ");
for (i=0; i < TEST_LENGTH; i++)
(void) putchar('0');
(void) printf("\nis: ");
printbits(bs, TEST_LENGTH);
(void) printf("\ntest bit_set\n");
for (i=0; i<TEST_LENGTH; i+=3) {
bit_set(bs, i);
}
(void) printf("be: 1 0 ");
for (i=0; i < TEST_LENGTH; i++)
(void) putchar(*("100" + (i % 3)));
(void) printf("\nis: ");
printbits(bs, TEST_LENGTH);
(void) printf("\ntest bit_clear\n");
for (i=0; i<TEST_LENGTH; i+=6) {
bit_clear(bs, i);
}
(void) printf("be: 0 3 ");
for (i=0; i < TEST_LENGTH; i++)
(void) putchar(*("000100" + (i % 6)));
(void) printf("\nis: ");
printbits(bs, TEST_LENGTH);
(void) printf("\ntest bit_test using previous bitstring\n");
(void) printf(" i bit_test(i)\n");
for (i=0; i<TEST_LENGTH; i++) {
(void) printf("%3d%15d\n",
i, bit_test(bs, i));
}
clearbits(bs, TEST_LENGTH);
(void) printf("\ntest clearbits\n");
(void) printf("be: 0 -1 ");
for (i=0; i < TEST_LENGTH; i++)
(void) putchar('0');
(void) printf("\nis: ");
printbits(bs, TEST_LENGTH);
(void) printf("\ntest bit_nset and bit_nclear\n");
bit_nset(bs, 1, TEST_LENGTH - 2);
(void) printf("be: 0 1 0");
for (i=0; i < TEST_LENGTH - 2; i++)
(void) putchar('1');
(void) printf("0\nis: ");
printbits(bs, TEST_LENGTH);
bit_nclear(bs, 2, TEST_LENGTH - 3);
(void) printf("be: 0 1 01");
for (i=0; i < TEST_LENGTH - 4; i++)
(void) putchar('0');
(void) printf("10\nis: ");
printbits(bs, TEST_LENGTH);
bit_nclear(bs, 0, TEST_LENGTH - 1);
(void) printf("be: 0 -1 ");
for (i=0; i < TEST_LENGTH; i++)
(void) putchar('0');
(void) printf("\nis: ");
printbits(bs, TEST_LENGTH);
bit_nset(bs, 0, TEST_LENGTH - 2);
(void) printf("be: %3d 0 ",TEST_LENGTH - 1);
for (i=0; i < TEST_LENGTH - 1; i++)
(void) putchar('1');
putchar('0');
(void) printf("\nis: ");
printbits(bs, TEST_LENGTH);
bit_nclear(bs, 0, TEST_LENGTH - 1);
(void) printf("be: 0 -1 ");
for (i=0; i < TEST_LENGTH; i++)
(void) putchar('0');
(void) printf("\nis: ");
printbits(bs, TEST_LENGTH);
(void) printf("\n");
(void) printf("first 1 bit should move right 1 position each line\n");
for (i=0; i<TEST_LENGTH; i++) {
bit_nclear(bs, 0, TEST_LENGTH - 1);
bit_nset(bs, i, TEST_LENGTH - 1);
(void) printf("%3d ", i); printbits(bs, TEST_LENGTH);
}
(void) printf("\n");
(void) printf("first 0 bit should move right 1 position each line\n");
for (i=0; i<TEST_LENGTH; i++) {
bit_nset(bs, 0, TEST_LENGTH - 1);
bit_nclear(bs, i, TEST_LENGTH - 1);
(void) printf("%3d ", i); printbits(bs, TEST_LENGTH);
}
(void) printf("\n");
(void) printf("first 0 bit should move left 1 position each line\n");
for (i=0; i<TEST_LENGTH; i++) {
bit_nclear(bs, 0, TEST_LENGTH - 1);
bit_nset(bs, 0, TEST_LENGTH - 1 - i);
(void) printf("%3d ", i); printbits(bs, TEST_LENGTH);
}
(void) printf("\n");
(void) printf("first 1 bit should move left 1 position each line\n");
for (i=0; i<TEST_LENGTH; i++) {
bit_nset(bs, 0, TEST_LENGTH - 1);
bit_nclear(bs, 0, TEST_LENGTH - 1 - i);
(void) printf("%3d ", i); printbits(bs, TEST_LENGTH);
}
(void) printf("\n");
(void) printf("0 bit should move right 1 position each line\n");
for (i=0; i<TEST_LENGTH; i++) {
bit_nset(bs, 0, TEST_LENGTH - 1);
bit_nclear(bs, i, i);
(void) printf("%3d ", i); printbits(bs, TEST_LENGTH);
}
(void) printf("\n");
(void) printf("1 bit should move right 1 position each line\n");
for (i=0; i<TEST_LENGTH; i++) {
bit_nclear(bs, 0, TEST_LENGTH - 1);
bit_nset(bs, i, i);
(void) printf("%3d ", i); printbits(bs, TEST_LENGTH);
}
(void)free(bs);
(void)exit(0);
}
void
clearbits(b, n)
bitstr_t *b;
int n;
{
int i = bitstr_size(n);
while(i--)
*(b + i) = 0;
}
void
printbits(b, n)
bitstr_t *b;
int n;
{
int i;
int jc, js;
bit_ffc(b, n, &jc);
bit_ffs(b, n, &js);
(void) printf("%3d %3d ", jc, js);
for (i=0; i< n; i++) {
(void) putchar((bit_test(b, i) ? '1' : '0'));
}
(void)putchar('\n');
}