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Document how to add/delete a subroutine or change its signature #15

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schwern opened this issue Nov 21, 2014 · 0 comments

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schwern commented Nov 21, 2014

Adding/removing a subroutine to the C code or changing its signature is not a straightforward process.

It must be added/changed/removed in embed.fnc.
If it's a new function, you must decide what flags it should have
You must decide what flags its arguments should have.
"make regen" must be run.
The PERL_ARGS_ASSERT macro must be used if it takes arguments.

embed.fnc is mentioned briefly in perlguts. Most of the documentation is in embed.fnc itself.

This should likely go into perlhack.

schwern added the documentation label

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