Is it possible to introduce CONSTANT in Fortran?

[Beliavsky]

@CRquantum

Perhaps similar questions have been asked before. But I dare to ask again, LOL.

Usually in the code, we read in variables from a file, say a variable called AAA.
So we can use the same code without re-compile and build again each time the variable AAA changes.

Now I am just curious, if this AAA is read in once, and never change in the code. Can we make it a CONSTANT?

No, but some workarounds are discussed in the thread Immutable declaration