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/* $NetBSD: convfp.c,v 1.3 2003/06/16 07:11:52 martin Exp $ */
/*-
* Copyright (c) 2003 The NetBSD Foundation, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#include <limits.h>
#include <stdio.h>
/*
* This value is representable as an unsigned int, but not as an int.
* According to ISO C it must survive the convsion back from a double
* to an unsigned int (everything > -1 and < UINT_MAX+1 has to)
*/
#define UINT_TESTVALUE (INT_MAX+42U)
/* The same for unsigned long */
#define ULONG_TESTVALUE (LONG_MAX+42UL)
int
main()
{
unsigned int ui;
unsigned long ul;
long double dt;
double d;
/* unsigned int test */
d = UINT_TESTVALUE;
ui = (unsigned int)d;
if (ui != UINT_TESTVALUE) {
printf("FAILED: unsigned int %u (0x%x) != %u (0x%x)\n",
ui, ui, UINT_TESTVALUE, UINT_TESTVALUE);
exit(1);
}
/* unsigned long vs. {long} double test */
if (sizeof(d) > sizeof(ul)) {
d = ULONG_TESTVALUE;
ul = (unsigned long)d;
printf("testing double vs. long\n");
} else if (sizeof(dt) > sizeof(ul)) {
dt = ULONG_TESTVALUE;
ul = (unsigned long)dt;
printf("testing long double vs. long\n");
} else {
printf("no suitable {long} double type found, skipping "
"\"unsigned long\" test\n");
printf("sizeof(long) = %d, sizeof(double) = %d, "
"sizeof(long double) = %d\n",
sizeof(ul), sizeof(d), sizeof(dt));
goto done;
}
if (ul != ULONG_TESTVALUE) {
printf("FAILED: unsigned long %lu (0x%lx) != %lu (0x%lx)\n",
ul, ul, ULONG_TESTVALUE, ULONG_TESTVALUE);
exit(1);
}
done:
printf("PASSED\n");
exit(0);
}
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