[PATCH] D128262: [Fortran] Avoid digits in character constant

Thu Jun 23 05:28:38 PDT 2022

awarzynski added a comment.

Hey Diana, cheers for looking into this!

Please bear with me, as this is not my are of expertise :)

> Test 9 from FM905.f tests the splitting of long character strings at the 80-character boundary when using list-directed output.

Where is this boundary imposed? Is it a limit for the input of for the output? The get a better idea, I've run this benchmark using `flang-new` and `gfortran`:

**flang-new**

                  COMPUTED=
  SHORTTHIS IS A LONGER CHARACTER STRING1234567890123456789012345678901234567890
  12345678901234567890123456789012
                  CORRECT=
  SHORT  THIS IS A LONGER CHARACTER STRING 123456789012345678901234567890123456789
  012345678901234567890123456789012

**gfortran**

                  COMPUTED=
  SHORTTHIS IS A LONGER CHARACTER STRING123456789012345678901234567890123456789012345678901234567890123456789012
                  CORRECT=
  SHORT  THIS IS A LONGER CHARACTER STRING 123456789012345678901234567890123456789
  012345678901234567890123456789012

So the expected output was generated with `gfortran` in mind. But why is the output from `flang-new` different? You referred to white spaces in list-directed output, but the formatting seems identical with respect to white spaces.

Repository:
  rT test-suite

CHANGES SINCE LAST ACTION
  https://reviews.llvm.org/D128262/new/

https://reviews.llvm.org/D128262