| /* Test integer width macros. |
| Copyright (C) 2016-2018 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" |