| !program to test nested forall construct and forall mask | |
| program test | |
| implicit none | |
| integer a(4,4) | |
| integer i, j | |
| do i=1,4 | |
| do j=1,4 | |
| a(j,i) = j-i | |
| enddo | |
| enddo | |
| forall (i=2:4, a(1,i).GT.-2) | |
| forall (j=1:4, a(j,2).GT.0) | |
| a(j,i) = a(j,i-1) | |
| end forall | |
| end forall | |
| if (any (a.ne.reshape ((/0,1,2,3,-1,0,2,3,-2,-1,0,1,-3,-2,-1,0/),& | |
| (/4,4/)))) STOP 1 | |
| end | |