xref: /petsc/src/sys/tests/ex29.c (revision 5f80ce2ab25dff0f4601e710601cbbcecf323266)
1 
2 static char help[] = "Tests PetscInt64Mult()\n";
3 
4 #include <petscsys.h>
5 
6 int main(int argc,char **argv)
7 {
8   PetscErrorCode ierr;
9   PetscInt       a = 2009,b = 5612,result,tresult;
10   PetscInt64     r64;
11 
12   ierr = PetscInitialize(&argc,&argv,(char*)0,help);if (ierr) return ierr;
13   CHKERRQ(PetscIntMultError(a,b,&result));
14   a       = PETSC_MPI_INT_MAX-22,b = PETSC_MPI_INT_MAX/22;
15   r64     = PetscInt64Mult(a,b);
16   tresult = PetscIntMultTruncate(a,b);
17   CHKERRQ(PetscIntMultError(a,b,&result));
18   ierr    = ierr = PetscFinalize();
19   return ierr;
20 }
21