| /* Simple test of putwc in the C locale. |
| Copyright (C) 2000-2014 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| Contributed by Ulrich Drepper <drepper@cygnus.com>, 2000. |
| |
| 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 |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <errno.h> |
| #include <error.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <wchar.h> |
| |
| static const char outname[] = OBJPFX "tst_putwc.temp"; |
| |
| /* Prototype for our test function. */ |
| int do_test (void); |
| #define TEST_FUNCTION do_test () |
| |
| /* This defines the `main' function and some more. */ |
| #include <test-skeleton.c> |
| |
| int |
| do_test (void) |
| { |
| const wchar_t str[] = L"This is a test of putwc\n"; |
| wchar_t buf[100]; |
| size_t n = 0; |
| FILE *fp; |
| int res = 0; |
| |
| add_temp_file (outname); |
| |
| fp = fopen (outname, "w+"); |
| if (fp == NULL) |
| error (EXIT_FAILURE, errno, "cannot open temporary file"); |
| |
| for (n = 0; str[n] != L'\0'; ++n) |
| putwc (str[n], fp); |
| |
| /* First try reading after rewinding. */ |
| rewind (fp); |
| |
| wmemset (buf, L'\0', sizeof (buf) / sizeof (buf[0])); |
| n = 0; |
| while (! feof (fp) && n < sizeof (buf) - 1) |
| { |
| buf[n] = getwc (fp); |
| if (buf[n] == WEOF) |
| break; |
| ++n; |
| } |
| buf[n] = L'\0'; |
| |
| if (wcscmp (buf, L"This is a test of putwc\n") != 0) |
| { |
| puts ("first comparison failed"); |
| res = 1; |
| } |
| |
| /* Now close the file, open it again, and read again. */ |
| if (fclose (fp) != 0) |
| { |
| printf ("failure during fclose: %m\n"); |
| res = 1; |
| } |
| |
| fp = fopen (outname, "r"); |
| if (fp == NULL) |
| { |
| printf ("cannot reopen file: %m\n"); |
| return 1; |
| } |
| |
| /* We can remove the file now. */ |
| remove (outname); |
| |
| wmemset (buf, L'\0', sizeof (buf) / sizeof (buf[0])); |
| n = 0; |
| while (! feof (fp) && n < sizeof (buf) - 1) |
| { |
| buf[n] = getwc (fp); |
| if (buf[n] == WEOF) |
| break; |
| ++n; |
| } |
| buf[n] = L'\0'; |
| |
| if (wcscmp (buf, L"This is a test of putwc\n") != 0) |
| { |
| puts ("second comparison failed"); |
| res = 1; |
| } |
| |
| if (fclose (fp) != 0) |
| { |
| printf ("failure during fclose: %m\n"); |
| res = 1; |
| } |
| |
| /* Next test: write a bit more than a few bytes. */ |
| fp = fopen (outname, "w"); |
| if (fp == NULL) |
| error (EXIT_FAILURE, errno, "cannot open temporary file"); |
| |
| for (n = 0; n < 4098; ++n) |
| putwc (n & 255, fp); |
| |
| fclose (fp); |
| |
| return res; |
| } |