diff options
Diffstat (limited to 'stdio-common/tst-printf-binary-main.c')
| -rw-r--r-- | stdio-common/tst-printf-binary-main.c | 130 |
1 files changed, 130 insertions, 0 deletions
diff --git a/stdio-common/tst-printf-binary-main.c b/stdio-common/tst-printf-binary-main.c new file mode 100644 index 0000000000..02698f65ba --- /dev/null +++ b/stdio-common/tst-printf-binary-main.c @@ -0,0 +1,130 @@ +/* Test binary printf formats. + Copyright (C) 2021 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#include <limits.h> +#include <stdio.h> +#include <string.h> +#include <wchar.h> + +#include <libc-diag.h> +#include <support/check.h> + +/* GCC does not know the %b or %B formats before GCC 12. */ +DIAG_PUSH_NEEDS_COMMENT; +#if !__GNUC_PREREQ (12, 0) +DIAG_IGNORE_NEEDS_COMMENT (11, "-Wformat"); +DIAG_IGNORE_NEEDS_COMMENT (11, "-Wformat-extra-args"); +#endif + +#define CHECK_PRINTF(EXPECTED, FMT, ...) \ + do \ + { \ + int ret = SNPRINTF (buf, sizeof buf / sizeof buf[0], L_(FMT), \ + __VA_ARGS__); \ + TEST_COMPARE_STRING_MACRO (buf, L_(EXPECTED)); \ + TEST_COMPARE (ret, STRLEN (L_(EXPECTED))); \ + } \ + while (0) + +static int +do_test (void) +{ + CHAR buf[1024]; + CHECK_PRINTF ("0", "%b", 0u); + CHECK_PRINTF ("0", "%B", 0u); + CHECK_PRINTF ("0", "%#b", 0u); + CHECK_PRINTF ("0", "%#B", 0u); + CHECK_PRINTF ("1", "%b", 1u); + CHECK_PRINTF ("1", "%B", 1u); + CHECK_PRINTF ("10", "%b", 2u); + CHECK_PRINTF ("10", "%B", 2u); + CHECK_PRINTF ("11", "%b", 3u); + CHECK_PRINTF ("11", "%B", 3u); + CHECK_PRINTF ("10000111011001010100001100100001", "%b", 0x87654321); + CHECK_PRINTF ("10000111011001010100001100100001", "%B", 0x87654321); + CHECK_PRINTF ("100001100100001", "%hb", (int) 0x87654321); + CHECK_PRINTF ("100001100100001", "%hB", (int) 0x87654321); + CHECK_PRINTF ("100001", "%hhb", (int) 0x87654321); + CHECK_PRINTF ("100001", "%hhB", (int) 0x87654321); + CHECK_PRINTF ("10000111011001010100001100100001", "%lb", 0x87654321ul); + CHECK_PRINTF ("10000111011001010100001100100001", "%lB", 0x87654321ul); + CHECK_PRINTF ("11111110110111001011101010011001" + "10000111011001010100001100100001", "%llb", + 0xfedcba9987654321ull); + CHECK_PRINTF ("11111110110111001011101010011001" + "10000111011001010100001100100001", "%llB", + 0xfedcba9987654321ull); +#if LONG_WIDTH >= 64 + CHECK_PRINTF ("11111110110111001011101010011001" + "10000111011001010100001100100001", "%lb", + 0xfedcba9987654321ul); + CHECK_PRINTF ("11111110110111001011101010011001" + "10000111011001010100001100100001", "%lB", + 0xfedcba9987654321ul); +#endif + CHECK_PRINTF (" 1010", "%5b", 10u); + CHECK_PRINTF (" 1010", "%5B", 10u); + CHECK_PRINTF ("01010", "%05b", 10u); + CHECK_PRINTF ("01010", "%05B", 10u); + CHECK_PRINTF ("1011 ", "%-5b", 11u); + CHECK_PRINTF ("1011 ", "%-5B", 11u); + CHECK_PRINTF ("0b10011", "%#b", 19u); + CHECK_PRINTF ("0B10011", "%#B", 19u); + CHECK_PRINTF (" 0b10011", "%#10b", 19u); + CHECK_PRINTF (" 0B10011", "%#10B", 19u); + CHECK_PRINTF ("0b00010011", "%0#10b", 19u); + CHECK_PRINTF ("0B00010011", "%0#10B", 19u); + CHECK_PRINTF ("0b00010011", "%#010b", 19u); + CHECK_PRINTF ("0B00010011", "%#010B", 19u); + CHECK_PRINTF ("0b10011 ", "%#-10b", 19u); + CHECK_PRINTF ("0B10011 ", "%#-10B", 19u); + CHECK_PRINTF ("00010011", "%.8b", 19u); + CHECK_PRINTF ("00010011", "%.8B", 19u); + CHECK_PRINTF ("0b00010011", "%#.8b", 19u); + CHECK_PRINTF ("0B00010011", "%#.8B", 19u); + CHECK_PRINTF (" 00010011", "%15.8b", 19u); + CHECK_PRINTF (" 00010011", "%15.8B", 19u); + CHECK_PRINTF ("00010011 ", "%-15.8b", 19u); + CHECK_PRINTF ("00010011 ", "%-15.8B", 19u); + CHECK_PRINTF (" 0b00010011", "%#15.8b", 19u); + CHECK_PRINTF (" 0B00010011", "%#15.8B", 19u); + CHECK_PRINTF ("0b00010011 ", "%-#15.8b", 19u); + CHECK_PRINTF ("0B00010011 ", "%-#15.8B", 19u); + /* GCC diagnoses ignored flags. */ + DIAG_PUSH_NEEDS_COMMENT; + DIAG_IGNORE_NEEDS_COMMENT (12, "-Wformat"); + /* '0' flag ignored with '-'. */ + CHECK_PRINTF ("1011 ", "%0-5b", 11u); + CHECK_PRINTF ("1011 ", "%0-5B", 11u); + CHECK_PRINTF ("0b10011 ", "%#0-10b", 19u); + CHECK_PRINTF ("0B10011 ", "%#0-10B", 19u); + /* '0' flag ignored with precision. */ + CHECK_PRINTF (" 00010011", "%015.8b", 19u); + CHECK_PRINTF (" 00010011", "%015.8B", 19u); + CHECK_PRINTF (" 0b00010011", "%0#15.8b", 19u); + CHECK_PRINTF (" 0B00010011", "%0#15.8B", 19u); + DIAG_POP_NEEDS_COMMENT; + /* Test positional argument handling. */ + CHECK_PRINTF ("test 1011 test2 100010001000100010001000100010001", + "%2$s %1$b %4$s %3$llb", 11u, "test", 0x111111111ull, "test2"); + return 0; +} + +DIAG_POP_NEEDS_COMMENT; + +#include <support/test-driver.c> |