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author | Bruno Haible <bruno@clisp.org> | 2007-03-04 18:03:19 +0000 |
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committer | Bruno Haible <bruno@clisp.org> | 2007-03-04 18:03:19 +0000 |
commit | 75d8d9a0913c552cb82dc815a8c9685f79317b32 (patch) | |
tree | 3a0595d0ce3467984629de42ce7ba4ab34e62f42 /tests/test-snprintf.c | |
parent | 4f1ef93bb87111c89562d136d07e0278c12dca5b (diff) | |
download | gnulib-75d8d9a0913c552cb82dc815a8c9685f79317b32.tar.gz |
Tests for module 'snprintf'.
Diffstat (limited to 'tests/test-snprintf.c')
-rw-r--r-- | tests/test-snprintf.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/tests/test-snprintf.c b/tests/test-snprintf.c new file mode 100644 index 0000000000..7b3e9b49e8 --- /dev/null +++ b/tests/test-snprintf.c @@ -0,0 +1,60 @@ +/* Test of snprintf() function. + Copyright (C) 2007 Free Software Foundation, Inc. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2, or (at your option) + any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software Foundation, + Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ + +/* Written by Bruno Haible <bruno@clisp.org>, 2007. */ + +#ifdef HAVE_CONFIG_H +# include <config.h> +#endif + +#include <stdio.h> + +#include <stdlib.h> +#include <string.h> + +#define ASSERT(expr) if (!(expr)) abort (); + +int +main (int argc, char *argv[]) +{ + char buf[8]; + int size; + int retval; + + for (size = 0; size <= 8; size++) + { + memcpy (buf, "DEADBEEF", 8); + retval = snprintf (buf, size, "%d", 12345); + if (size < 6) + { + ASSERT (retval < 0 || retval >= size); + if (size > 0) + { + ASSERT (memcmp (buf, "12345", size - 1) == 0); + ASSERT (buf[size - 1] == '\0' || buf[size - 1] == '0' + size); + } + ASSERT (memcmp (buf + size, "DEADBEEF" + size, 8 - size) == 0); + } + else + { + ASSERT (retval == 5); + ASSERT (memcmp (buf, "12345\0EF", 8) == 0); + } + } + + return 0; +} |