1/* $OpenBSD: bitstring_test.c,v 1.5 2003/07/31 21:48:02 deraadt Exp $ */ 2/* $NetBSD: bitstring_test.c,v 1.4 1995/04/29 05:44:35 cgd Exp $ */ 3 4/* 5 * this is a simple program to test bitstring.h 6 * inspect the output, you should notice problems 7 * choose the ATT or BSD flavor 8 */ 9/* #define ATT /*- */ 10#define BSD /*-*/ 11 12/* 13 * include the following define if you want the program to link. this 14 * corrects a misspeling in bitstring.h 15 */ 16#define _bitstr_size bitstr_size 17 18#include <stdio.h> 19#include <stdlib.h> 20 21/* #ifdef NOTSOGOOD */ 22#include "bitstring.h" 23/* #else */ 24/* #include "gbitstring.h" */ 25/* #endif */ 26 27int TEST_LENGTH; 28#define DECL_TEST_LENGTH 37 /* a mostly random number */ 29 30static void 31clearbits(bitstr_t *b, int n) 32{ 33 register int i = bitstr_size(n); 34 35 while (i--) 36 *(b + i) = 0; 37} 38 39static void 40printbits(bitstr_t *b, int n) 41{ 42 register int i; 43 int jc, js; 44 45 bit_ffc(b, n, &jc); 46 bit_ffs(b, n, &js); 47 (void) printf("%3d %3d ", jc, js); 48 for (i = 0; i < n; i++) { 49 (void) putchar((bit_test(b, i) ? '1' : '0')); 50 } 51 (void) putchar('\n'); 52} 53 54int 55main(int argc, char *argv[]) 56{ 57 int i; 58 bitstr_t *bs; 59 bitstr_t bit_decl(bss, DECL_TEST_LENGTH); 60 61 if (argc > 1) 62 TEST_LENGTH = atoi(argv[1]); 63 else 64 TEST_LENGTH = DECL_TEST_LENGTH; 65 66 if (TEST_LENGTH < 4) { 67 fprintf(stderr, "TEST_LENGTH must be at least 4, but it is %d\n", 68 TEST_LENGTH); 69 exit(1); 70 } 71 (void) printf("Testing with TEST_LENGTH = %d\n\n", TEST_LENGTH); 72 73 (void) printf("test _bit_byte, _bit_mask, and bitstr_size\n"); 74 (void) printf(" i _bit_byte(i) _bit_mask(i) bitstr_size(i)\n"); 75 for (i = 0; i < TEST_LENGTH; i++) { 76 (void) printf("%3d%15d%15d%15d\n", 77 i, _bit_byte(i), _bit_mask(i), bitstr_size(i)); 78 } 79 80 bs = bit_alloc(TEST_LENGTH); 81 clearbits(bs, TEST_LENGTH); 82 (void) printf("\ntest bit_alloc, clearbits, bit_ffc, bit_ffs\n"); 83 (void) printf("be: 0 -1 "); 84 for (i = 0; i < TEST_LENGTH; i++) 85 (void) putchar('0'); 86 (void) printf("\nis: "); 87 printbits(bs, TEST_LENGTH); 88 89 (void) printf("\ntest bit_set\n"); 90 for (i = 0; i < TEST_LENGTH; i += 3) { 91 bit_set(bs, i); 92 } 93 (void) printf("be: 1 0 "); 94 for (i = 0; i < TEST_LENGTH; i++) 95 (void) putchar(*("100" + (i % 3))); 96 (void) printf("\nis: "); 97 printbits(bs, TEST_LENGTH); 98 99 (void) printf("\ntest bit_clear\n"); 100 for (i = 0; i < TEST_LENGTH; i += 6) { 101 bit_clear(bs, i); 102 } 103 (void) printf("be: 0 3 "); 104 for (i = 0; i < TEST_LENGTH; i++) 105 (void) putchar(*("000100" + (i % 6))); 106 (void) printf("\nis: "); 107 printbits(bs, TEST_LENGTH); 108 109 (void) printf("\ntest bit_test using previous bitstring\n"); 110 (void) printf(" i bit_test(i)\n"); 111 for (i = 0; i < TEST_LENGTH; i++) { 112 (void) printf("%3d%15d\n", 113 i, bit_test(bs, i)); 114 } 115 116 clearbits(bs, TEST_LENGTH); 117 (void) printf("\ntest clearbits\n"); 118 (void) printf("be: 0 -1 "); 119 for (i = 0; i < TEST_LENGTH; i++) 120 (void) putchar('0'); 121 (void) printf("\nis: "); 122 printbits(bs, TEST_LENGTH); 123 124 (void) printf("\ntest bit_nset and bit_nclear\n"); 125 bit_nset(bs, 1, TEST_LENGTH - 2); 126 (void) printf("be: 0 1 0"); 127 for (i = 0; i < TEST_LENGTH - 2; i++) 128 (void) putchar('1'); 129 (void) printf("0\nis: "); 130 printbits(bs, TEST_LENGTH); 131 132 bit_nclear(bs, 2, TEST_LENGTH - 3); 133 (void) printf("be: 0 1 01"); 134 for (i = 0; i < TEST_LENGTH - 4; i++) 135 (void) putchar('0'); 136 (void) printf("10\nis: "); 137 printbits(bs, TEST_LENGTH); 138 139 bit_nclear(bs, 0, TEST_LENGTH - 1); 140 (void) printf("be: 0 -1 "); 141 for (i = 0; i < TEST_LENGTH; i++) 142 (void) putchar('0'); 143 (void) printf("\nis: "); 144 printbits(bs, TEST_LENGTH); 145 bit_nset(bs, 0, TEST_LENGTH - 2); 146 (void) printf("be: %3d 0 ", TEST_LENGTH - 1); 147 for (i = 0; i < TEST_LENGTH - 1; i++) 148 (void) putchar('1'); 149 putchar('0'); 150 (void) printf("\nis: "); 151 printbits(bs, TEST_LENGTH); 152 bit_nclear(bs, 0, TEST_LENGTH - 1); 153 (void) printf("be: 0 -1 "); 154 for (i = 0; i < TEST_LENGTH; i++) 155 (void) putchar('0'); 156 (void) printf("\nis: "); 157 printbits(bs, TEST_LENGTH); 158 159 (void) printf("\n"); 160 (void) printf("first 1 bit should move right 1 position each line\n"); 161 for (i = 0; i < TEST_LENGTH; i++) { 162 bit_nclear(bs, 0, TEST_LENGTH - 1); 163 bit_nset(bs, i, TEST_LENGTH - 1); 164 (void) printf("%3d ", i); 165 printbits(bs, TEST_LENGTH); 166 } 167 168 (void) printf("\n"); 169 (void) printf("first 0 bit should move right 1 position each line\n"); 170 for (i = 0; i < TEST_LENGTH; i++) { 171 bit_nset(bs, 0, TEST_LENGTH - 1); 172 bit_nclear(bs, i, TEST_LENGTH - 1); 173 (void) printf("%3d ", i); 174 printbits(bs, TEST_LENGTH); 175 } 176 177 (void) printf("\n"); 178 (void) printf("first 0 bit should move left 1 position each line\n"); 179 for (i = 0; i < TEST_LENGTH; i++) { 180 bit_nclear(bs, 0, TEST_LENGTH - 1); 181 bit_nset(bs, 0, TEST_LENGTH - 1 - i); 182 (void) printf("%3d ", i); 183 printbits(bs, TEST_LENGTH); 184 } 185 186 (void) printf("\n"); 187 (void) printf("first 1 bit should move left 1 position each line\n"); 188 for (i = 0; i < TEST_LENGTH; i++) { 189 bit_nset(bs, 0, TEST_LENGTH - 1); 190 bit_nclear(bs, 0, TEST_LENGTH - 1 - i); 191 (void) printf("%3d ", i); 192 printbits(bs, TEST_LENGTH); 193 } 194 195 (void) printf("\n"); 196 (void) printf("0 bit should move right 1 position each line\n"); 197 for (i = 0; i < TEST_LENGTH; i++) { 198 bit_nset(bs, 0, TEST_LENGTH - 1); 199 bit_nclear(bs, i, i); 200 (void) printf("%3d ", i); 201 printbits(bs, TEST_LENGTH); 202 } 203 204 (void) printf("\n"); 205 (void) printf("1 bit should move right 1 position each line\n"); 206 for (i = 0; i < TEST_LENGTH; i++) { 207 bit_nclear(bs, 0, TEST_LENGTH - 1); 208 bit_nset(bs, i, i); 209 (void) printf("%3d ", i); 210 printbits(bs, TEST_LENGTH); 211 } 212 213 (void) free(bs); 214 (void) exit(0); 215} 216