intel-qs/util/BigMPI/test/devel/aint_overflow.c

38 lines
731 B
C

#include <stdio.h>
#include <stdint.h>
#include <limits.h>
#include <mpi.h>
int main(int argc, char * argv[])
{
printf("INT_MAX = %d\n", INT_MAX);
int a = (int)INT_MAX*100;
MPI_Aint b = (MPI_Aint)INT_MAX*100;
int64_t c = (int64_t)INT_MAX*100;
uint64_t d = (uint64_t)INT_MAX*100;
printf("a = %d\n", a);
printf("b = %zu\n", b);
printf("c = %lld\n", c);
printf("d = %llu\n", d);
int a2 = 100;
MPI_Aint b2 = 100;
int64_t c2 = 100;
uint64_t d2 = 100;
a2 *= INT_MAX;
b2 *= INT_MAX;
c2 *= INT_MAX;
d2 *= INT_MAX;
printf("a2 = %d\n", a2);
printf("b2 = %zu\n", b2);
printf("c2 = %lld\n", c2);
printf("d2 = %llu\n", d2);
return 0;
}