t_strpct.c revision 1.1
1 /* $NetBSD: t_strpct.c,v 1.1 2025/05/02 19:52:02 rillig Exp $ */ 2 3 /* 4 * Copyright (c) 2025 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code was contributed to The NetBSD Foundation by Roland Illig. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 19 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 20 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 21 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 22 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 23 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 24 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 25 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 26 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 27 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 28 * POSSIBILITY OF SUCH DAMAGE. 29 */ 30 31 #include <sys/cdefs.h> 32 __COPYRIGHT("@(#) Copyright (c) 2025\ 33 The NetBSD Foundation, inc. All rights reserved."); 34 __RCSID("$NetBSD: t_strpct.c,v 1.1 2025/05/02 19:52:02 rillig Exp $"); 35 36 #include <stdbool.h> 37 #include <stdint.h> 38 #include <stdio.h> 39 #include <string.h> 40 #include <util.h> 41 42 #include <atf-c.h> 43 44 static void 45 check_strspct(const char *file, unsigned line, 46 size_t bufsiz, intmax_t num, intmax_t den, size_t digits, 47 const char *want) 48 { 49 char buf[128]; 50 51 ATF_REQUIRE_MSG(bufsiz < sizeof(buf) - 2, "bufsiz too large"); 52 memset(buf, '>', sizeof(buf)); 53 buf[0] = '<'; 54 buf[sizeof(buf) - 1] = '\0'; 55 56 const char *have = strspct(buf + 1, bufsiz, num, den, digits); 57 58 ATF_REQUIRE_MSG(buf[0] == '<', 59 "out-of-bounds write before"); 60 ATF_REQUIRE_MSG(buf[1 + bufsiz] == '>', 61 "out-of-bounds write after"); 62 ATF_REQUIRE_MSG(have == buf + 1, 63 "have != buf"); 64 ATF_CHECK_MSG(bufsiz > 0 ? strcmp(have, want) == 0 : true, 65 "%s:%u: want \"%s\", have \"%s\"", 66 file, line, want, have); 67 } 68 69 #define h_strspct(bufsiz, num, den, digits, want) \ 70 check_strspct(__FILE__, __LINE__, bufsiz, num, den, digits, want) 71 72 ATF_TC(strspct); 73 ATF_TC_HEAD(strspct, tc) 74 { 75 atf_tc_set_md_var(tc, "descr", "Checks strspct(3)"); 76 } 77 ATF_TC_BODY(strspct, tc) 78 { 79 80 h_strspct(0, 0, 0, 0, ""); 81 h_strspct(1, 0, 0, 0, ""); 82 h_strspct(2, 0, 0, 0, "0"); 83 h_strspct(3, 0, 0, 0, "0"); 84 h_strspct(3, 0, 0, 1, "0."); 85 h_strspct(4, 0, 0, 1, "0.0"); 86 h_strspct(4, 1, 5, 1, "20."); 87 h_strspct(6, 1, 5, 1, "20.0"); 88 h_strspct(100, 1, 5, 5, "20.00000"); 89 90 // Percentages are always rounded towards zero. 91 h_strspct(6, 1, 6, 1, "16.6"); 92 h_strspct(7, -1, 6, 1, "-16.6"); 93 h_strspct(7, 1, -6, 1, "-16.6"); 94 h_strspct(7, -1, -6, 1, "16.6"); 95 96 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 0, "100"); 97 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 1, "100.0"); 98 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 2, "100.00"); 99 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 3, "100.000"); 100 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 4, "100.0000"); 101 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 5, "100.00000"); 102 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 6, "100.000000"); 103 // FIXME: must be 100.0000000 104 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 7, "100.0000003"); 105 // FIXME: must be 100.00000000 106 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 8, "100.00002208"); 107 // FIXME: must be 100.000000000 108 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 9, "100.000781031"); 109 // FIXME: must be 100.0000000000 110 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 10, "100.0040337943"); 111 // FIXME: must be 100.00000000000 112 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 11, "100.03657306783"); 113 // FIXME: must be 100.000000000000 114 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 12, "100.254043878856"); 115 // FIXME: must be 100.0000000000000 116 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 13, "102.4819115206086"); 117 // FIXME: must be 100.00000000000000 118 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 14, "92.23372036854775"); 119 // FIXME: must be 100.000000000000000 120 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 15, "9.223372036854775"); 121 // FIXME: must be 100.0000000000000000 122 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 16, "0.9223372036854775"); 123 // FIXME: must be 100.00000000000000000 124 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 17, "0.09223372036854775"); 125 // FIXME: must be 100.000000000000000000 126 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 18, "0.09223372036854775"); 127 // FIXME: must be 100.0000000000000000000 128 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 19, "0.09223372036854775"); 129 // FIXME: must be 100.00000000000000000000 130 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 20, "0.09223372036854775"); 131 // FIXME: must be 100.000000000000000000000 132 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 21, "0.09223372036854775"); 133 // FIXME: must be 100.0000000000000000000000 134 h_strspct(100, INTMAX_MAX / 1000, INTMAX_MAX / 1000, 22, "0.09223372036854775"); 135 136 // FIXME: must be 100.0 137 h_strspct(100, INTMAX_MIN, INTMAX_MIN, 20, "92.23372036854775808"); 138 // FIXME: must be -100.0 139 h_strspct(100, INTMAX_MIN, INTMAX_MAX, 20, "-92.23372036854775808"); 140 // FIXME: must be -100.0 141 h_strspct(100, INTMAX_MAX, INTMAX_MIN, 20, "-92.23372036854775807"); 142 // FIXME: must be 100.0 143 h_strspct(100, INTMAX_MAX, INTMAX_MAX, 20, "92.23372036854775807"); 144 } 145 146 ATF_TP_ADD_TCS(tp) 147 { 148 149 ATF_TP_ADD_TC(tp, strspct); 150 151 return atf_no_error(); 152 } 153
Indexes created Sun Sep 21 20:09:37 GMT 2025