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c2f959ed5f
The format string can request positional parameters, instead of relying on the order in which they appear as arguments. Since this has an effect on how the type of each argument is determined, this patch extends the test cases to use positional parameters with mixed double and long double types, to verify that the IEEE long double implementations of *printf work correctly in this scenario. Tested for powerpc64le. Reviewed-By: Paul E. Murphy <murphyp@linux.ibm.com>
123 lines
3.8 KiB
C
123 lines
3.8 KiB
C
/* Test for the long double variants of *w*printf_chk functions.
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Copyright (C) 2019 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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<http://www.gnu.org/licenses/>. */
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#define _FORTIFY_SOURCE 2
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#include <stdarg.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <wchar.h>
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#include <support/capture_subprocess.h>
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#include <support/check.h>
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static void
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do_test_call_varg (FILE *stream, const wchar_t *format, ...)
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{
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wchar_t string[128];
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va_list args;
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wprintf (L"%20Ls", L"__vfwprintf_chk: ");
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va_start (args, format);
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__vfwprintf_chk (stream, 1, format, args);
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va_end (args);
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wprintf (L"\n");
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wprintf (L"%20Ls", L"__vswprintf_chk: ");
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va_start (args, format);
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__vswprintf_chk (string, 79, 1, 127, format, args);
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va_end (args);
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wprintf (L"%Ls", string);
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wprintf (L"\n");
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wprintf (L"%20Ls", L"__vwprintf_chk: ");
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va_start (args, format);
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__vwprintf_chk (1, format, args);
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va_end (args);
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wprintf (L"\n");
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}
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static void
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do_test_call_rarg (FILE *stream, const wchar_t *format, long double ld,
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double d)
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{
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wchar_t string[128];
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wprintf (L"%20Ls", L"__fwprintf_chk: ");
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__fwprintf_chk (stream, 1, format, ld, d);
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wprintf (L"\n");
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wprintf (L"%20Ls", L"__swprintf_chk: ");
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__swprintf_chk (string, 79, 1, 127, format, ld, d);
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wprintf (L"%Ls", string);
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wprintf (L"\n");
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wprintf (L"%20Ls", L"__wprintf_chk: ");
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__wprintf_chk (1, format, ld, d);
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wprintf (L"\n");
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}
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static void
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do_test_call (void)
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{
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long double ld = -1;
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double d = -1;
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/* Print in decimal notation. */
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do_test_call_rarg (stdout, L"%.10Lf, %.10f", ld, d);
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do_test_call_varg (stdout, L"%.10Lf, %.10f", ld, d);
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/* Print in hexadecimal notation. */
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do_test_call_rarg (stdout, L"%.10La, %.10a", ld, d);
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do_test_call_varg (stdout, L"%.10La, %.10a", ld, d);
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/* Test positional parameters. */
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do_test_call_varg (stdout, L"%3$Lf, %2$Lf, %1$f",
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(double) 1, (long double) 2, (long double) 3);
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}
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static int
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do_test (void)
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{
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struct support_capture_subprocess result;
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result = support_capture_subprocess ((void *) &do_test_call, NULL);
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/* Compare against the expected output. */
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const char *expected =
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" __fwprintf_chk: -1.0000000000, -1.0000000000\n"
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" __swprintf_chk: -1.0000000000, -1.0000000000\n"
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" __wprintf_chk: -1.0000000000, -1.0000000000\n"
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" __vfwprintf_chk: -1.0000000000, -1.0000000000\n"
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" __vswprintf_chk: -1.0000000000, -1.0000000000\n"
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" __vwprintf_chk: -1.0000000000, -1.0000000000\n"
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" __fwprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
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" __swprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
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" __wprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
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" __vfwprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
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" __vswprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
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" __vwprintf_chk: -0x1.0000000000p+0, -0x1.0000000000p+0\n"
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" __vfwprintf_chk: 3.000000, 2.000000, 1.000000\n"
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" __vswprintf_chk: 3.000000, 2.000000, 1.000000\n"
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" __vwprintf_chk: 3.000000, 2.000000, 1.000000\n";
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TEST_COMPARE_STRING (expected, result.out.buffer);
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return 0;
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}
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#include <support/test-driver.c>
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