Can we reinstate EQUIVALENCE?

[hkvzjal]

@rwmsu

My memory is not what it once was but wasn’t it mentioned in a recent thread here that some compilers appear to implement ASSOCIATE like they were pointers.

Fortran skill markdown for codex

Here’s an example that points to a “quality of implemenation” issue (Compiler Explorer). module stencil_mod implicit none public integer, parameter :: dp = kind(1.0d0) contains subroutine stencil_manual(uold, unew, nx, ny, coeffx, coeffy) integer, intent(in) :: nx, ny real(dp), intent(in) :: uold(0:nx+1,0:ny+1) real(dp), intent(out) :: unew(0:nx+1,0:ny+1) real(dp), intent(in) :: coeffx, coeffy integer :: i,j do j = 1, ny do i = 1, nx unew(i,j) = uold(i…