diff options
Diffstat (limited to 'tests/test-ignore-value.c')
-rw-r--r-- | tests/test-ignore-value.c | 78 |
1 files changed, 78 insertions, 0 deletions
diff --git a/tests/test-ignore-value.c b/tests/test-ignore-value.c new file mode 100644 index 0000000..70b3bcc --- /dev/null +++ b/tests/test-ignore-value.c @@ -0,0 +1,78 @@ +/* Test the "ignore-value" module. + + Copyright (C) 2011-2022 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 3 of the License, 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, see <https://www.gnu.org/licenses/>. */ + +/* Written by Eric Blake. */ + +#include <config.h> + +#include "ignore-value.h" + +#include <stdio.h> + +#include "attribute.h" + +struct s { int i; }; +NODISCARD static char doChar (void); +NODISCARD static int doInt (void); +NODISCARD static off_t doOff (void); +NODISCARD static void *doPtr (void); +NODISCARD static struct s doStruct (void); + +static char +doChar (void) +{ + return 0; +} + +static int +doInt (void) +{ + return 0; +} + +static off_t +doOff (void) +{ + return 0; +} + +static void * +doPtr (void) +{ + return NULL; +} + +static struct s +doStruct (void) +{ + static struct s s1; + return s1; +} + +int +main (void) +{ + /* If this test can compile with -Werror and the same warnings as + the rest of the project, then we are properly silencing warnings + about ignored return values. */ + ignore_value (doChar ()); + ignore_value (doInt ()); + ignore_value (doOff ()); + ignore_value (doPtr ()); + ignore_value (doStruct ()); + return 0; +} |