diff options
Diffstat (limited to 'stdio-common/tst-vfprintf-width-prec-alloc.c')
| -rw-r--r-- | stdio-common/tst-vfprintf-width-prec-alloc.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/stdio-common/tst-vfprintf-width-prec-alloc.c b/stdio-common/tst-vfprintf-width-prec-alloc.c new file mode 100644 index 0000000000..0a74b53a33 --- /dev/null +++ b/stdio-common/tst-vfprintf-width-prec-alloc.c @@ -0,0 +1,41 @@ +/* Test large width or precision does not involve large allocation. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#include <stdio.h> +#include <sys/resource.h> +#include <support/check.h> + +char test_string[] = "test"; + +static int +do_test (void) +{ + struct rlimit limit; + TEST_VERIFY_EXIT (getrlimit (RLIMIT_AS, &limit) == 0); + limit.rlim_cur = 200 * 1024 * 1024; + TEST_VERIFY_EXIT (setrlimit (RLIMIT_AS, &limit) == 0); + FILE *fp = fopen ("/dev/null", "w"); + TEST_VERIFY_EXIT (fp != NULL); + TEST_COMPARE (fprintf (fp, "%1000000000d", 1), 1000000000); + TEST_COMPARE (fprintf (fp, "%.1000000000s", test_string), 4); + TEST_COMPARE (fprintf (fp, "%1000000000d %1000000000d", 1, 2), 2000000001); + TEST_COMPARE (fprintf (fp, "%2$.*1$s", 0x7fffffff, test_string), 4); + return 0; +} + +#include <support/test-driver.c> |