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131 lines
4.9 KiB
C
131 lines
4.9 KiB
C
/* Test binary printf formats.
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Copyright (C) 2021-2023 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <limits.h>
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#include <stdio.h>
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#include <string.h>
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#include <wchar.h>
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#include <libc-diag.h>
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#include <support/check.h>
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/* GCC does not know the %b or %B formats before GCC 12. */
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DIAG_PUSH_NEEDS_COMMENT;
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#if !__GNUC_PREREQ (12, 0)
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DIAG_IGNORE_NEEDS_COMMENT (11, "-Wformat");
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DIAG_IGNORE_NEEDS_COMMENT (11, "-Wformat-extra-args");
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#endif
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#define CHECK_PRINTF(EXPECTED, FMT, ...) \
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do \
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{ \
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int ret = SNPRINTF (buf, sizeof buf / sizeof buf[0], L_(FMT), \
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__VA_ARGS__); \
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TEST_COMPARE_STRING_MACRO (buf, L_(EXPECTED)); \
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TEST_COMPARE (ret, STRLEN (L_(EXPECTED))); \
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} \
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while (0)
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static int
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do_test (void)
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{
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CHAR buf[1024];
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CHECK_PRINTF ("0", "%b", 0u);
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CHECK_PRINTF ("0", "%B", 0u);
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CHECK_PRINTF ("0", "%#b", 0u);
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CHECK_PRINTF ("0", "%#B", 0u);
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CHECK_PRINTF ("1", "%b", 1u);
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CHECK_PRINTF ("1", "%B", 1u);
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CHECK_PRINTF ("10", "%b", 2u);
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CHECK_PRINTF ("10", "%B", 2u);
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CHECK_PRINTF ("11", "%b", 3u);
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CHECK_PRINTF ("11", "%B", 3u);
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CHECK_PRINTF ("10000111011001010100001100100001", "%b", 0x87654321);
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CHECK_PRINTF ("10000111011001010100001100100001", "%B", 0x87654321);
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CHECK_PRINTF ("100001100100001", "%hb", (int) 0x87654321);
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CHECK_PRINTF ("100001100100001", "%hB", (int) 0x87654321);
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CHECK_PRINTF ("100001", "%hhb", (int) 0x87654321);
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CHECK_PRINTF ("100001", "%hhB", (int) 0x87654321);
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CHECK_PRINTF ("10000111011001010100001100100001", "%lb", 0x87654321ul);
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CHECK_PRINTF ("10000111011001010100001100100001", "%lB", 0x87654321ul);
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CHECK_PRINTF ("11111110110111001011101010011001"
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"10000111011001010100001100100001", "%llb",
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0xfedcba9987654321ull);
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CHECK_PRINTF ("11111110110111001011101010011001"
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"10000111011001010100001100100001", "%llB",
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0xfedcba9987654321ull);
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#if LONG_WIDTH >= 64
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CHECK_PRINTF ("11111110110111001011101010011001"
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"10000111011001010100001100100001", "%lb",
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0xfedcba9987654321ul);
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CHECK_PRINTF ("11111110110111001011101010011001"
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"10000111011001010100001100100001", "%lB",
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0xfedcba9987654321ul);
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#endif
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CHECK_PRINTF (" 1010", "%5b", 10u);
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CHECK_PRINTF (" 1010", "%5B", 10u);
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CHECK_PRINTF ("01010", "%05b", 10u);
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CHECK_PRINTF ("01010", "%05B", 10u);
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CHECK_PRINTF ("1011 ", "%-5b", 11u);
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CHECK_PRINTF ("1011 ", "%-5B", 11u);
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CHECK_PRINTF ("0b10011", "%#b", 19u);
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CHECK_PRINTF ("0B10011", "%#B", 19u);
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CHECK_PRINTF (" 0b10011", "%#10b", 19u);
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CHECK_PRINTF (" 0B10011", "%#10B", 19u);
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CHECK_PRINTF ("0b00010011", "%0#10b", 19u);
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CHECK_PRINTF ("0B00010011", "%0#10B", 19u);
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CHECK_PRINTF ("0b00010011", "%#010b", 19u);
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CHECK_PRINTF ("0B00010011", "%#010B", 19u);
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CHECK_PRINTF ("0b10011 ", "%#-10b", 19u);
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CHECK_PRINTF ("0B10011 ", "%#-10B", 19u);
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CHECK_PRINTF ("00010011", "%.8b", 19u);
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CHECK_PRINTF ("00010011", "%.8B", 19u);
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CHECK_PRINTF ("0b00010011", "%#.8b", 19u);
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CHECK_PRINTF ("0B00010011", "%#.8B", 19u);
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CHECK_PRINTF (" 00010011", "%15.8b", 19u);
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CHECK_PRINTF (" 00010011", "%15.8B", 19u);
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CHECK_PRINTF ("00010011 ", "%-15.8b", 19u);
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CHECK_PRINTF ("00010011 ", "%-15.8B", 19u);
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CHECK_PRINTF (" 0b00010011", "%#15.8b", 19u);
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CHECK_PRINTF (" 0B00010011", "%#15.8B", 19u);
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CHECK_PRINTF ("0b00010011 ", "%-#15.8b", 19u);
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CHECK_PRINTF ("0B00010011 ", "%-#15.8B", 19u);
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/* GCC diagnoses ignored flags. */
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DIAG_PUSH_NEEDS_COMMENT;
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DIAG_IGNORE_NEEDS_COMMENT (12, "-Wformat");
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/* '0' flag ignored with '-'. */
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CHECK_PRINTF ("1011 ", "%0-5b", 11u);
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CHECK_PRINTF ("1011 ", "%0-5B", 11u);
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CHECK_PRINTF ("0b10011 ", "%#0-10b", 19u);
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CHECK_PRINTF ("0B10011 ", "%#0-10B", 19u);
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/* '0' flag ignored with precision. */
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CHECK_PRINTF (" 00010011", "%015.8b", 19u);
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CHECK_PRINTF (" 00010011", "%015.8B", 19u);
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CHECK_PRINTF (" 0b00010011", "%0#15.8b", 19u);
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CHECK_PRINTF (" 0B00010011", "%0#15.8B", 19u);
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DIAG_POP_NEEDS_COMMENT;
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/* Test positional argument handling. */
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CHECK_PRINTF ("test 1011 test2 100010001000100010001000100010001",
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"%2$s %1$b %4$s %3$llb", 11u, "test", 0x111111111ull, "test2");
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return 0;
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}
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DIAG_POP_NEEDS_COMMENT;
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#include <support/test-driver.c>
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