mirror of git://sourceware.org/git/glibc.git
62 lines
1.8 KiB
C
62 lines
1.8 KiB
C
/* Verify multibyte digit extending beyond scanf field width.
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Copyright (C) 2025 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 <locale.h>
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#include <stdio.h>
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#include <string.h>
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#include <libc-diag.h>
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#include <support/check.h>
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#include <support/xstdio.h>
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#define P1 "\xdb\xb1"
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#define P2 "\xdb\xb2"
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static int
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do_test (void)
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{
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if (setlocale (LC_ALL, "fa_IR.UTF-8") == NULL)
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FAIL_EXIT1 ("setlocale (LC_ALL, \"fa_IR.UTF-8\")");
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char s[] = P1 P2;
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FILE *f = xfmemopen (s, strlen (s), "r");
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/* Avoid: "warning: 'I' flag used with '%f' gnu_scanf format [-Wformat=]";
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cf. GCC PR c/119514. */
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DIAG_PUSH_NEEDS_COMMENT;
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DIAG_IGNORE_NEEDS_COMMENT (4.9, "-Wformat");
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/* This should succeed parsing a floating-point number, and leave '\xdb',
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'\xb2' in the input. */
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double d;
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int c;
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TEST_VERIFY_EXIT (fscanf (f, "%I3lf%n", &d, &c) == 1);
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TEST_VERIFY_EXIT (d == 1.0);
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TEST_VERIFY_EXIT (c == 2);
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TEST_VERIFY_EXIT (fgetc (f) == 0xdb);
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TEST_VERIFY_EXIT (fgetc (f) == 0xb2);
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DIAG_POP_NEEDS_COMMENT;
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xfclose (f);
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return 0;
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}
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#include <support/test-driver.c>
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