| ! { dg-do run } |
| ! { dg-options "-std=legacy" } |
| ! |
| ! Check that NULs don't mess up constant substring simplification |
| CHARACTER(5), parameter :: c0(1) = (/ "123" // ACHAR(0) // "5" /) |
| CHARACTER*5 c(1) |
| CHARACTER(1), parameter :: c1(5) = (/ "1", "2", "3", ACHAR(0), "5" /) |
| |
| c = c0(1)(-5:-8) |
| if (c(1) /= " ") STOP 1 |
| c = (/ c0(1)(1:5) /) |
| do i=1,5 |
| if (c(1)(i:i) /= c1(i)) STOP 2 |
| |
| ! Make NULs visible (and avoid corrupting text output). |
| if (c(1)(i:i) == ACHAR(0)) then |
| print "(a,$)", "<NUL>" |
| else |
| print "(a,$)", c(1)(i:i) |
| end if |
| end do |
| |
| print *, "" |
| |
| end |
