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commit 8b915921fbf4d32bf68fc3d637413cf96236b3fd
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Author: Andreas Schwab <schwab@suse.de>
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Date: Mon Aug 29 15:05:40 2022 +0200
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Add test for bug 29530
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This tests for a bug that was introduced in commit edc1686af0 ("vfprintf:
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Reuse work_buffer in group_number") and fixed as a side effect of commit
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6caddd34bd ("Remove most vfprintf width/precision-dependent allocations
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(bug 14231, bug 26211).").
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(cherry picked from commit ca6466e8be32369a658035d69542d47603e58a99)
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diff --git a/stdio-common/Makefile b/stdio-common/Makefile
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index d76b47bd5f932f69..ac61093660ef9063 100644
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--- a/stdio-common/Makefile
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+++ b/stdio-common/Makefile
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@@ -64,7 +64,9 @@ tests := tstscanf test_rdwr test-popen tstgetln test-fseek \
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tst-scanf-round \
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tst-renameat2 \
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tst-printf-bz25691 \
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- tst-vfprintf-width-prec-alloc
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+ tst-vfprintf-width-prec-alloc \
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+ tst-grouping2 \
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+ # tests
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test-srcs = tst-unbputc tst-printf tst-printfsz-islongdouble
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@@ -91,6 +93,7 @@ $(objpfx)bug14.out: $(gen-locales)
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$(objpfx)scanf13.out: $(gen-locales)
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$(objpfx)test-vfprintf.out: $(gen-locales)
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$(objpfx)tst-grouping.out: $(gen-locales)
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+$(objpfx)tst-grouping2.out: $(gen-locales)
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$(objpfx)tst-sprintf.out: $(gen-locales)
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$(objpfx)tst-sscanf.out: $(gen-locales)
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$(objpfx)tst-swprintf.out: $(gen-locales)
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diff --git a/stdio-common/tst-grouping2.c b/stdio-common/tst-grouping2.c
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new file mode 100644
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index 0000000000000000..3024c942a60e51bf
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--- /dev/null
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+++ b/stdio-common/tst-grouping2.c
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@@ -0,0 +1,39 @@
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+/* Test printf with grouping and large width (bug 29530)
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+ Copyright (C) 2022 Free Software Foundation, Inc.
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+ This file is part of the GNU C Library.
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+
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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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+
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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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+
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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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+
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+#include <locale.h>
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+#include <stdio.h>
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+#include <support/check.h>
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+#include <support/support.h>
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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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+ const int field_width = 1000;
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+ char buf[field_width + 1];
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+
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+ xsetlocale (LC_NUMERIC, "de_DE.UTF-8");
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+
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+ /* This used to crash in group_number. */
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+ TEST_COMPARE (sprintf (buf, "%'*d", field_width, 1000), field_width);
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+ TEST_COMPARE_STRING (buf + field_width - 6, " 1.000");
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+
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+ return 0;
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+}
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+
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+#include <support/test-driver.c>
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