[all-commits] [llvm/llvm-project] 01dbfa: [flang-rt] Extension: accept '!' as value separato...

[Eugene Epshteyn via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 01dbfa0b6e04c09e389bafd7668b2f99bba3ea79
      https://github.com/llvm/llvm-project/commit/01dbfa0b6e04c09e389bafd7668b2f99bba3ea79
  Author: Eugene Epshteyn <eepshteyn at nvidia.com>
  Date:   2026-06-04 (Thu, 04 Jun 2026)

  Changed paths:
    M flang-rt/lib/runtime/edit-input.cpp
    M flang-rt/lib/runtime/io-stmt.cpp
    M flang-rt/unittests/Runtime/ListInputTest.cpp
    M flang-rt/unittests/Runtime/Namelist.cpp
    M flang/docs/Extensions.md

  Log Message:
  -----------
  [flang-rt] Extension: accept '!' as value separator in NAMELIST input (#200441)

Treat '!' as a self-delimiting value separator when reading NAMELIST
input, so that "name=value!comment" is accepted without an intervening
blank, comma, slash, or end of record. This matches gfortran, ifx, and
classic nvfortran behavior on real-world namelist input files.

F2023 13.11.3.6 p.1 requires a value separator before a '!' comment
introducer in namelist input, so this is a documented extension. The
change does not affect '!' characters inside character literal
constants, which continue to be taken literally.

The extension was documented in flang/docs/Extensions.md.

Assisted-by: AI



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