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How to WRITE compile time warning for user

I would like to write a Pragma warning in GNU G++ for every user that compile my codes.

How can i do this? I am using GNU G++ compiler.

Solution

  • MSVC and newer GCCs support:

    #pragma message ( "your warning text here" )

    In GCC the other syntax is also commonly used:

    #warning "you warning text here"

    See also question: Portability of #warning preprocessor directive and GCC documentation