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88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
/* Test integer width macros.
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Copyright (C) 2016-2020 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <limits.h>
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#include <stdio.h>
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#define CHECK_WIDTH(TYPE, MAX, WIDTH) \
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do \
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{ \
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if ((MAX >> ((TYPE) -1 < 0 ? (WIDTH - 2) : (WIDTH - 1))) != 1) \
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{ \
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puts ("bad width of " #TYPE); \
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result = 1; \
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} \
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else \
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puts ("width of " #TYPE " OK"); \
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} \
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while (0)
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static int
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do_test (void)
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{
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int result = 0;
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#ifndef CHAR_WIDTH
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# error "missing CHAR_WIDTH"
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#endif
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CHECK_WIDTH (char, CHAR_MAX, CHAR_WIDTH);
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#ifndef SCHAR_WIDTH
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# error "missing SCHAR_WIDTH"
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#endif
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CHECK_WIDTH (signed char, SCHAR_MAX, SCHAR_WIDTH);
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#ifndef UCHAR_WIDTH
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# error "missing UCHAR_WIDTH"
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#endif
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CHECK_WIDTH (unsigned char, UCHAR_MAX, UCHAR_WIDTH);
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#ifndef SHRT_WIDTH
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# error "missing SHRT_WIDTH"
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#endif
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CHECK_WIDTH (signed short, SHRT_MAX, SHRT_WIDTH);
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#ifndef USHRT_WIDTH
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# error "missing USHRT_WIDTH"
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#endif
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CHECK_WIDTH (unsigned short, USHRT_MAX, USHRT_WIDTH);
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#ifndef INT_WIDTH
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# error "missing INT_WIDTH"
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#endif
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CHECK_WIDTH (signed int, INT_MAX, INT_WIDTH);
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#ifndef UINT_WIDTH
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# error "missing UINT_WIDTH"
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#endif
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CHECK_WIDTH (unsigned int, UINT_MAX, UINT_WIDTH);
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#ifndef LONG_WIDTH
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# error "missing LONG_WIDTH"
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#endif
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CHECK_WIDTH (signed long, LONG_MAX, LONG_WIDTH);
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#ifndef ULONG_WIDTH
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# error "missing ULONG_WIDTH"
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#endif
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CHECK_WIDTH (unsigned long, ULONG_MAX, ULONG_WIDTH);
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#ifndef LLONG_WIDTH
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# error "missing LLONG_WIDTH"
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#endif
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CHECK_WIDTH (signed long long, LLONG_MAX, LLONG_WIDTH);
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#ifndef ULLONG_WIDTH
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# error "missing ULLONG_WIDTH"
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#endif
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CHECK_WIDTH (unsigned long long, ULLONG_MAX, ULLONG_WIDTH);
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return result;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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