Visitar URL original
bail out on invalid number in `#line` preprocessor directive · Issue #663 · cppcheck-opensource/simplecpp · GitHub
Skip to content

bail out on invalid number in #line preprocessor directive #663

Closed
Closed
bail out on invalid number in #line preprocessor directive#663
Assignees
firewave

Description

@firewave
firewave
opened on Jun 22, 2026

Mentioned in #586 (comment).

#line -1

Is being reject by GCC

a.cpp:1:7: error: ‘-’ after ‘#line’ is not a positive integer
    1 | #line -1
      |       ^

and Clang

a.cpp:1:7: error: #line directive requires a positive integer argument
    1 | #line -1
      |       ^

but we just accept it.

See https://en.cppreference.com/cpp/preprocessor/line.

Activity

  1. firewave
    self-assigned this
    on Jun 22, 2026

  2. ludviggunne commented on Aug 5, 2026

    @ludviggunne
    ludviggunne
    on Aug 5, 2026
    Collaborator

    Fixed in #687.

  3. ludviggunne
    closed this as completedon Aug 5, 2026
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment

Metadata

Metadata

Assignees

Labels

No labels
No labels

Type

No type

Projects

No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions