Ask HN: Have GNU C++ compiler ignore shebang | Hacker News Reader

Ask HN: Have GNU C++ compiler ignore shebang

2 pointsmardiyah4 comments

Any Guru of C++ so solve this error below making GNU c++ ignore shebang?

m.cpp:1:2: error: invalid preprocessing directive #!

    1 | #!/usr/bin/vim

Please do favor solve it, thanks so much

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I don't think that this is possible.

The `#` is not a valid comment in C++, and `#!` is not a valid preprocessor directive, hence the error.

There is no way to solve this so that you have a single file X.cc that you can feed to g++ as an argument:

  g++ X.cc ...

and such that this file is a hash bang script.

C and C++ can be hash-bang scripted, through a shell script which cuts out the incompatible material and feeds the rest to the compiler. See the solution for the multiline shebang task in Rosetta Code:

https://rosettacode.org/wiki/Multiline_shebang#C

I'm guess you're trying to make the program self-editing rather than self executing, by using Vim as the interpreter?

Try{ #include!/user/bin/vim Return!O

#include¡ //user/bin/vim

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