diff options
Diffstat (limited to 'stdlib')
| -rw-r--r-- | stdlib/Makefile | 2 | ||||
| -rw-r--r-- | stdlib/tst-width.c | 87 |
2 files changed, 88 insertions, 1 deletions
diff --git a/stdlib/Makefile b/stdlib/Makefile index fc6f23dcaf..ccc9aaef33 100644 --- a/stdlib/Makefile +++ b/stdlib/Makefile @@ -77,7 +77,7 @@ tests := tst-strtol tst-strtod testmb testrand testsort testdiv \ tst-tininess tst-strtod-underflow tst-tls-atexit \ tst-setcontext3 tst-tls-atexit-nodelete \ tst-strtol-locale tst-strtod-nan-locale tst-strfmon_l \ - tst-quick_exit tst-thread-quick_exit + tst-quick_exit tst-thread-quick_exit tst-width tests-static := tst-secure-getenv ifeq ($(have-cxx-thread_local),yes) CFLAGS-tst-quick_exit.o = -std=c++11 diff --git a/stdlib/tst-width.c b/stdlib/tst-width.c new file mode 100644 index 0000000000..4972c8d762 --- /dev/null +++ b/stdlib/tst-width.c @@ -0,0 +1,87 @@ +/* Test integer width macros. + Copyright (C) 2016 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 + <http://www.gnu.org/licenses/>. */ + +#include <limits.h> +#include <stdio.h> + +#define CHECK_WIDTH(TYPE, MAX, WIDTH) \ + do \ + { \ + if ((MAX >> ((TYPE) -1 < 0 ? (WIDTH - 2) : (WIDTH - 1))) != 1) \ + { \ + puts ("bad width of " #TYPE); \ + result = 1; \ + } \ + else \ + puts ("width of " #TYPE " OK"); \ + } \ + while (0) + +static int +do_test (void) +{ + int result = 0; +#ifndef CHAR_WIDTH +# error "missing CHAR_WIDTH" +#endif + CHECK_WIDTH (char, CHAR_MAX, CHAR_WIDTH); +#ifndef SCHAR_WIDTH +# error "missing SCHAR_WIDTH" +#endif + CHECK_WIDTH (signed char, SCHAR_MAX, SCHAR_WIDTH); +#ifndef UCHAR_WIDTH +# error "missing UCHAR_WIDTH" +#endif + CHECK_WIDTH (unsigned char, UCHAR_MAX, UCHAR_WIDTH); +#ifndef SHRT_WIDTH +# error "missing SHRT_WIDTH" +#endif + CHECK_WIDTH (signed short, SHRT_MAX, SHRT_WIDTH); +#ifndef USHRT_WIDTH +# error "missing USHRT_WIDTH" +#endif + CHECK_WIDTH (unsigned short, USHRT_MAX, USHRT_WIDTH); +#ifndef INT_WIDTH +# error "missing INT_WIDTH" +#endif + CHECK_WIDTH (signed int, INT_MAX, INT_WIDTH); +#ifndef UINT_WIDTH +# error "missing UINT_WIDTH" +#endif + CHECK_WIDTH (unsigned int, UINT_MAX, UINT_WIDTH); +#ifndef LONG_WIDTH +# error "missing LONG_WIDTH" +#endif + CHECK_WIDTH (signed long, LONG_MAX, LONG_WIDTH); +#ifndef ULONG_WIDTH +# error "missing ULONG_WIDTH" +#endif + CHECK_WIDTH (unsigned long, ULONG_MAX, ULONG_WIDTH); +#ifndef LLONG_WIDTH +# error "missing LLONG_WIDTH" +#endif + CHECK_WIDTH (signed long long, LLONG_MAX, LLONG_WIDTH); +#ifndef ULLONG_WIDTH +# error "missing ULLONG_WIDTH" +#endif + CHECK_WIDTH (unsigned long long, ULLONG_MAX, ULLONG_WIDTH); + return result; +} + +#define TEST_FUNCTION do_test () +#include "../test-skeleton.c" |