1 /* Test binary printf formats.
2 Copyright (C) 2021-2023 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19 #include <inttypes.h>
20 #include <limits.h>
21 #include <stdio.h>
22 #include <string.h>
23 #include <wchar.h>
24
25 #include <libc-diag.h>
26 #include <support/check.h>
27
28 /* GCC does not know the %b or %B formats before GCC 12. */
29 DIAG_PUSH_NEEDS_COMMENT;
30 #if !__GNUC_PREREQ (12, 0)
31 DIAG_IGNORE_NEEDS_COMMENT (11, "-Wformat");
32 DIAG_IGNORE_NEEDS_COMMENT (11, "-Wformat-extra-args");
33 #endif
34
35 #define CHECK_PRINTF(EXPECTED, FMT, ...) \
36 do \
37 { \
38 int ret = SNPRINTF (buf, sizeof buf / sizeof buf[0], L_(FMT), \
39 __VA_ARGS__); \
40 TEST_COMPARE_STRING_MACRO (buf, L_(EXPECTED)); \
41 TEST_COMPARE (ret, STRLEN (L_(EXPECTED))); \
42 } \
43 while (0)
44
45 static int
46 do_test (void)
47 {
48 CHAR buf[1024];
49 CHECK_PRINTF ("0", "%b", 0u);
50 CHECK_PRINTF ("0", "%B", 0u);
51 CHECK_PRINTF ("0", "%#b", 0u);
52 CHECK_PRINTF ("0", "%#B", 0u);
53 CHECK_PRINTF ("1", "%b", 1u);
54 CHECK_PRINTF ("1", "%B", 1u);
55 CHECK_PRINTF ("10", "%b", 2u);
56 CHECK_PRINTF ("10", "%B", 2u);
57 CHECK_PRINTF ("11", "%b", 3u);
58 CHECK_PRINTF ("11", "%B", 3u);
59 CHECK_PRINTF ("10000111011001010100001100100001", "%b", 0x87654321);
60 CHECK_PRINTF ("10000111011001010100001100100001", "%B", 0x87654321);
61 CHECK_PRINTF ("100001100100001", "%hb", (int) 0x87654321);
62 CHECK_PRINTF ("100001100100001", "%hB", (int) 0x87654321);
63 CHECK_PRINTF ("100001", "%hhb", (int) 0x87654321);
64 CHECK_PRINTF ("100001", "%hhB", (int) 0x87654321);
65 CHECK_PRINTF ("10000111011001010100001100100001", "%lb", 0x87654321ul);
66 CHECK_PRINTF ("10000111011001010100001100100001", "%lB", 0x87654321ul);
67 CHECK_PRINTF ("11111110110111001011101010011001"
68 "10000111011001010100001100100001", "%llb",
69 0xfedcba9987654321ull);
70 CHECK_PRINTF ("11111110110111001011101010011001"
71 "10000111011001010100001100100001", "%llB",
72 0xfedcba9987654321ull);
73 #if LONG_WIDTH >= 64
74 CHECK_PRINTF ("11111110110111001011101010011001"
75 "10000111011001010100001100100001", "%lb",
76 0xfedcba9987654321ul);
77 CHECK_PRINTF ("11111110110111001011101010011001"
78 "10000111011001010100001100100001", "%lB",
79 0xfedcba9987654321ul);
80 #endif
81 CHECK_PRINTF ("0b11", "%#" PRIb8, (uint8_t) 3);
82 CHECK_PRINTF ("0b11", "%#" PRIb16, (uint16_t) 3);
83 CHECK_PRINTF ("0b10000111011001010100001100100001", "%#" PRIb32,
84 (uint32_t) 0x87654321);
85 CHECK_PRINTF ("0b11111110110111001011101010011001"
86 "10000111011001010100001100100001", "%#" PRIb64,
87 (uint64_t) 0xfedcba9987654321ull);
88 CHECK_PRINTF ("0b11", "%#" PRIbLEAST8, (uint_least8_t) 3);
89 CHECK_PRINTF ("0b11", "%#" PRIbLEAST16, (uint_least16_t) 3);
90 CHECK_PRINTF ("0b10000111011001010100001100100001", "%#" PRIbLEAST32,
91 (uint_least32_t) 0x87654321);
92 CHECK_PRINTF ("0b11111110110111001011101010011001"
93 "10000111011001010100001100100001", "%#" PRIbLEAST64,
94 (uint_least64_t) 0xfedcba9987654321ull);
95 CHECK_PRINTF ("0b11", "%#" PRIbFAST8, (uint_fast8_t) 3);
96 CHECK_PRINTF ("0b11", "%#" PRIbFAST16, (uint_fast16_t) 3);
97 CHECK_PRINTF ("0b10000111011001010100001100100001", "%#" PRIbFAST32,
98 (uint_fast32_t) 0x87654321);
99 CHECK_PRINTF ("0b11111110110111001011101010011001"
100 "10000111011001010100001100100001", "%#" PRIbFAST64,
101 (uint_fast64_t) 0xfedcba9987654321ull);
102 CHECK_PRINTF ("0b10000111011001010100001100100001", "%#" PRIbPTR,
103 (uintptr_t) 0x87654321);
104 CHECK_PRINTF ("0b11111110110111001011101010011001"
105 "10000111011001010100001100100001", "%#" PRIbMAX,
106 (uintmax_t) 0xfedcba9987654321ull);
107 CHECK_PRINTF ("0B11", "%#" PRIB8, (uint8_t) 3);
108 CHECK_PRINTF ("0B11", "%#" PRIB16, (uint16_t) 3);
109 CHECK_PRINTF ("0B10000111011001010100001100100001", "%#" PRIB32,
110 (uint32_t) 0x87654321);
111 CHECK_PRINTF ("0B11111110110111001011101010011001"
112 "10000111011001010100001100100001", "%#" PRIB64,
113 (uint64_t) 0xfedcba9987654321ull);
114 CHECK_PRINTF ("0B11", "%#" PRIBLEAST8, (uint_least8_t) 3);
115 CHECK_PRINTF ("0B11", "%#" PRIBLEAST16, (uint_least16_t) 3);
116 CHECK_PRINTF ("0B10000111011001010100001100100001", "%#" PRIBLEAST32,
117 (uint_least32_t) 0x87654321);
118 CHECK_PRINTF ("0B11111110110111001011101010011001"
119 "10000111011001010100001100100001", "%#" PRIBLEAST64,
120 (uint_least64_t) 0xfedcba9987654321ull);
121 CHECK_PRINTF ("0B11", "%#" PRIBFAST8, (uint_fast8_t) 3);
122 CHECK_PRINTF ("0B11", "%#" PRIBFAST16, (uint_fast16_t) 3);
123 CHECK_PRINTF ("0B10000111011001010100001100100001", "%#" PRIBFAST32,
124 (uint_fast32_t) 0x87654321);
125 CHECK_PRINTF ("0B11111110110111001011101010011001"
126 "10000111011001010100001100100001", "%#" PRIBFAST64,
127 (uint_fast64_t) 0xfedcba9987654321ull);
128 CHECK_PRINTF ("0B10000111011001010100001100100001", "%#" PRIBPTR,
129 (uintptr_t) 0x87654321);
130 CHECK_PRINTF ("0B11111110110111001011101010011001"
131 "10000111011001010100001100100001", "%#" PRIBMAX,
132 (uintmax_t) 0xfedcba9987654321ull);
133 CHECK_PRINTF (" 1010", "%5b", 10u);
134 CHECK_PRINTF (" 1010", "%5B", 10u);
135 CHECK_PRINTF ("01010", "%05b", 10u);
136 CHECK_PRINTF ("01010", "%05B", 10u);
137 CHECK_PRINTF ("1011 ", "%-5b", 11u);
138 CHECK_PRINTF ("1011 ", "%-5B", 11u);
139 CHECK_PRINTF ("0b10011", "%#b", 19u);
140 CHECK_PRINTF ("0B10011", "%#B", 19u);
141 CHECK_PRINTF (" 0b10011", "%#10b", 19u);
142 CHECK_PRINTF (" 0B10011", "%#10B", 19u);
143 CHECK_PRINTF ("0b00010011", "%0#10b", 19u);
144 CHECK_PRINTF ("0B00010011", "%0#10B", 19u);
145 CHECK_PRINTF ("0b00010011", "%#010b", 19u);
146 CHECK_PRINTF ("0B00010011", "%#010B", 19u);
147 CHECK_PRINTF ("0b10011 ", "%#-10b", 19u);
148 CHECK_PRINTF ("0B10011 ", "%#-10B", 19u);
149 CHECK_PRINTF ("00010011", "%.8b", 19u);
150 CHECK_PRINTF ("00010011", "%.8B", 19u);
151 CHECK_PRINTF ("0b00010011", "%#.8b", 19u);
152 CHECK_PRINTF ("0B00010011", "%#.8B", 19u);
153 CHECK_PRINTF (" 00010011", "%15.8b", 19u);
154 CHECK_PRINTF (" 00010011", "%15.8B", 19u);
155 CHECK_PRINTF ("00010011 ", "%-15.8b", 19u);
156 CHECK_PRINTF ("00010011 ", "%-15.8B", 19u);
157 CHECK_PRINTF (" 0b00010011", "%#15.8b", 19u);
158 CHECK_PRINTF (" 0B00010011", "%#15.8B", 19u);
159 CHECK_PRINTF ("0b00010011 ", "%-#15.8b", 19u);
160 CHECK_PRINTF ("0B00010011 ", "%-#15.8B", 19u);
161 /* GCC diagnoses ignored flags. */
162 DIAG_PUSH_NEEDS_COMMENT;
163 DIAG_IGNORE_NEEDS_COMMENT (12, "-Wformat");
164 /* '0' flag ignored with '-'. */
165 CHECK_PRINTF ("1011 ", "%0-5b", 11u);
166 CHECK_PRINTF ("1011 ", "%0-5B", 11u);
167 CHECK_PRINTF ("0b10011 ", "%#0-10b", 19u);
168 CHECK_PRINTF ("0B10011 ", "%#0-10B", 19u);
169 /* '0' flag ignored with precision. */
170 CHECK_PRINTF (" 00010011", "%015.8b", 19u);
171 CHECK_PRINTF (" 00010011", "%015.8B", 19u);
172 CHECK_PRINTF (" 0b00010011", "%0#15.8b", 19u);
173 CHECK_PRINTF (" 0B00010011", "%0#15.8B", 19u);
174 DIAG_POP_NEEDS_COMMENT;
175 /* Test positional argument handling. */
176 CHECK_PRINTF ("test 1011 test2 100010001000100010001000100010001",
177 "%2$s %1$b %4$s %3$llb", 11u, "test", 0x111111111ull, "test2");
178 return 0;
179 }
180
181 DIAG_POP_NEEDS_COMMENT;
182
183 #include <support/test-driver.c>