mirror of
https://github.com/cc65/cc65.git
synced 2024-12-23 19:29:37 +00:00
74 lines
1.2 KiB
C
74 lines
1.2 KiB
C
|
|
/*
|
|
!!DESCRIPTION!! Addition tests - mostly int's
|
|
!!ORIGIN!! SDCC regression tests
|
|
!!LICENCE!! GPL, read COPYING.GPL
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
|
|
static unsigned int failures = 0;
|
|
|
|
/*
|
|
this test assumes:
|
|
sizeof(long) == 4
|
|
|
|
CAUTION: the wraparound behaviour is actually undefined, to get the "expected"
|
|
behaviour with GCC, use -fwrapv or -fno-strict-overflow
|
|
|
|
see: https://gcc.gnu.org/wiki/FAQ#signed_overflow
|
|
*/
|
|
|
|
#ifdef REFERENCE
|
|
|
|
/*
|
|
make sure the reference output uses types with
|
|
proper size
|
|
*/
|
|
|
|
#include <stdint.h>
|
|
|
|
int32_t long0 = 0;
|
|
|
|
#else
|
|
|
|
long long0 = 0;
|
|
|
|
#endif
|
|
|
|
void print(void)
|
|
{
|
|
#if defined(REFERENCE) && defined(REFCC_SIZEOF_LONG_64BIT)
|
|
printf("long0: %d\n", long0);
|
|
#else
|
|
printf("long0: %ld\n", long0);
|
|
#endif
|
|
}
|
|
|
|
int main(void)
|
|
{
|
|
long0 = 0x7f000000L;
|
|
/* wrap around zero */
|
|
print();
|
|
long0 = long0 + 0x2000000L;
|
|
if(long0 != -0x7f000000L) {
|
|
printf("failed!\n");
|
|
failures++;
|
|
}
|
|
print();
|
|
|
|
long0 = 0x7f000000L;
|
|
/* wrap around zero */
|
|
print();
|
|
long0 = long0 + 0x2000000L;
|
|
print();
|
|
if(long0 != -0x7f000000L) {
|
|
printf("failed!\n");
|
|
failures++;
|
|
}
|
|
print();
|
|
|
|
return failures;
|
|
}
|