263 lines
7.8 KiB
C
263 lines
7.8 KiB
C
/* Test of POSIX compatible obstack_[v]zprintf() functions.
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Copyright (C) 2007-2024 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible <bruno@clisp.org>, 2024. */
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/* This test exercises only a few POSIX compliance problems that are still
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visible on platforms relevant in 2024. */
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#include <config.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <stddef.h>
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#include <stdlib.h>
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#include <string.h>
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#include "obstack.h"
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#include "macros.h"
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#include "infinity.h"
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#include "nan.h"
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#define obstack_chunk_alloc malloc
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#define obstack_chunk_free free
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/* Test whether string[start_index..end_index-1] is a valid textual
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representation of NaN. */
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static int
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strisnan (const char *string, size_t start_index, size_t end_index, int uppercase)
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{
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if (start_index < end_index)
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{
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if (string[start_index] == '-')
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start_index++;
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if (start_index + 3 <= end_index
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&& memcmp (string + start_index, uppercase ? "NAN" : "nan", 3) == 0)
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{
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start_index += 3;
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if (start_index == end_index
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|| (string[start_index] == '(' && string[end_index - 1] == ')'))
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return 1;
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}
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}
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return 0;
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}
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static void
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test_function (ptrdiff_t (*my_obstack_zprintf) (struct obstack *, const char *, ...))
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{
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struct obstack obs;
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obstack_init (&obs);
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#define RESULT_EQ(expected) \
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(len == strlen (expected) && memcmp (result, expected, len) == 0)
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/* Test the support of the 'a' and 'A' conversion specifier for hexadecimal
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output of floating-point numbers. */
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{ /* This test would fail on Solaris 11.4. */
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ptrdiff_t len =
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my_obstack_zprintf (&obs, "%a %d", 3.1416015625, 33, 44, 55);
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ASSERT (len >= 0);
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char *result = obstack_finish (&obs);
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ASSERT (RESULT_EQ ("0x1.922p+1 33")
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|| RESULT_EQ ("0x3.244p+0 33")
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|| RESULT_EQ ("0x6.488p-1 33")
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|| RESULT_EQ ("0xc.91p-2 33"));
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obstack_free (&obs, result);
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}
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{ /* This test would fail on Solaris 11.4. */
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ptrdiff_t len =
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my_obstack_zprintf (&obs, "%A %d", -3.1416015625, 33, 44, 55);
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ASSERT (len >= 0);
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char *result = obstack_finish (&obs);
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ASSERT (RESULT_EQ ("-0X1.922P+1 33")
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|| RESULT_EQ ("-0X3.244P+0 33")
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|| RESULT_EQ ("-0X6.488P-1 33")
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|| RESULT_EQ ("-0XC.91P-2 33"));
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obstack_free (&obs, result);
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}
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{ /* This test would fail on FreeBSD 6.1, NetBSD 10.0. */
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ptrdiff_t len =
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my_obstack_zprintf (&obs, "%.2a %d", 1.51, 33, 44, 55);
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ASSERT (len >= 0);
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char *result = obstack_finish (&obs);
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ASSERT (RESULT_EQ ("0x1.83p+0 33")
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|| RESULT_EQ ("0x3.05p-1 33")
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|| RESULT_EQ ("0x6.0ap-2 33")
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|| RESULT_EQ ("0xc.14p-3 33"));
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obstack_free (&obs, result);
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}
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{ /* This test would fail on macOS 14, FreeBSD 14.0, OpenBSD 7.5, AIX 7.3,
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Solaris 11.4. */
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ptrdiff_t len =
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my_obstack_zprintf (&obs, "%.0a %d", 1.51, 33, 44, 55);
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ASSERT (len >= 0);
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char *result = obstack_finish (&obs);
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ASSERT (RESULT_EQ ("0x2p+0 33")
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|| RESULT_EQ ("0x3p-1 33")
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|| RESULT_EQ ("0x6p-2 33")
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|| RESULT_EQ ("0xcp-3 33"));
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obstack_free (&obs, result);
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}
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/* Test the support of the %f format directive. */
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{ /* This test would fail on AIX 7.3, Solaris 11.4. */
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ptrdiff_t len =
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my_obstack_zprintf (&obs, "%f %d", Infinityd (), 33, 44, 55);
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ASSERT (len >= 0);
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char *result = obstack_finish (&obs);
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ASSERT (RESULT_EQ ("inf 33")
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|| RESULT_EQ ("infinity 33"));
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obstack_free (&obs, result);
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}
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{ /* This test would fail on AIX 7.3, Solaris 11.4. */
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ptrdiff_t len =
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my_obstack_zprintf (&obs, "%f %d", NaNd (), 33, 44, 55);
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ASSERT (len >= 0);
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char *result = obstack_finish (&obs);
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ASSERT (len >= 3 + 3
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&& strisnan (result, 0, len - 3, 0)
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&& memcmp (result + len - 3, " 33", 3) == 0);
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obstack_free (&obs, result);
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}
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{ /* This test would fail on AIX 7.3, Solaris 11.4. */
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ptrdiff_t len =
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my_obstack_zprintf (&obs, "%010f %d", Infinityd (), 33, 44, 55);
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ASSERT (len >= 0);
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char *result = obstack_finish (&obs);
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ASSERT (RESULT_EQ (" inf 33")
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|| RESULT_EQ (" infinity 33"));
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obstack_free (&obs, result);
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}
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/* Test the support of the %e format directive. */
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{ /* This test would fail on AIX 7.3, Solaris 11.4. */
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ptrdiff_t len =
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my_obstack_zprintf (&obs, "%e %d", Infinityd (), 33, 44, 55);
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ASSERT (len >= 0);
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char *result = obstack_finish (&obs);
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ASSERT (RESULT_EQ ("inf 33")
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|| RESULT_EQ ("infinity 33"));
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obstack_free (&obs, result);
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}
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{ /* This test would fail on AIX 7.3, Solaris 11.4. */
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ptrdiff_t len =
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my_obstack_zprintf (&obs, "%e %d", NaNd (), 33, 44, 55);
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ASSERT (len >= 0);
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char *result = obstack_finish (&obs);
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ASSERT (len >= 3 + 3
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&& strisnan (result, 0, len - 3, 0)
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&& memcmp (result + len - 3, " 33", 3) == 0);
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obstack_free (&obs, result);
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}
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/* Test the support of the %g format directive. */
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{ /* This test would fail on AIX 7.3, Solaris 11.4. */
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ptrdiff_t len =
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my_obstack_zprintf (&obs, "%g %d", Infinityd (), 33, 44, 55);
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ASSERT (len >= 0);
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char *result = obstack_finish (&obs);
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ASSERT (RESULT_EQ ("inf 33")
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|| RESULT_EQ ("infinity 33"));
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obstack_free (&obs, result);
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}
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{ /* This test would fail on AIX 7.3, Solaris 11.4. */
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ptrdiff_t len =
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my_obstack_zprintf (&obs, "%g %d", NaNd (), 33, 44, 55);
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ASSERT (len >= 0);
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char *result = obstack_finish (&obs);
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ASSERT (len >= 3 + 3
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&& strisnan (result, 0, len - 3, 0)
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&& memcmp (result + len - 3, " 33", 3) == 0);
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obstack_free (&obs, result);
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}
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/* Test the support of large precision. */
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{ /* This test would fail on AIX 7.1. */
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ptrdiff_t len =
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my_obstack_zprintf (&obs, "%.4000d %d", 1234567, 99);
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ASSERT (len >= 0);
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char *result = obstack_finish (&obs);
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ASSERT (len == 4000 + 3);
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size_t i;
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for (i = 0; i < 4000 - 7; i++)
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ASSERT (result[i] == '0');
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ASSERT (memcmp (result + 4000 - 7, "1234567 99", 7 + 3) == 0);
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obstack_free (&obs, result);
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}
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/* Test the support of the 'b' conversion specifier for binary output of
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integers. */
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{ /* This test would fail on glibc 2.34, musl libc, macOS 14,
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FreeBSD 13.2, NetBSD 10.0, OpenBSD 7.5, AIX 7.3, Solaris 11.4. */
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ptrdiff_t len =
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my_obstack_zprintf (&obs, "%b %d", 12345, 33, 44, 55);
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ASSERT (len >= 0);
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char *result = obstack_finish (&obs);
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ASSERT (RESULT_EQ ("11000000111001 33"));
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obstack_free (&obs, result);
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}
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obstack_free (&obs, NULL);
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}
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static ptrdiff_t
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my_obstack_zprintf (struct obstack *obs, const char *format, ...)
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{
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va_list args;
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ptrdiff_t ret;
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va_start (args, format);
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ret = obstack_vzprintf (obs, format, args);
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va_end (args);
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return ret;
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}
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static void
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test_obstack_vzprintf ()
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{
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test_function (my_obstack_zprintf);
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}
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static void
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test_obstack_zprintf ()
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{
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test_function (obstack_zprintf);
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}
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int
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main (int argc, char *argv[])
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{
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test_obstack_vzprintf ();
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test_obstack_zprintf ();
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return test_exit_status;
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}
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