I have recently seen that there is a macro defined in base/c.jl called ccallable, but it is not clear to me what its usefulness is. It seems to be undocumented.
What is the ccallable macro for in Julia?
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1 Answers
After reading the documentation a little more carefully, I would summarise the usefulness of this macro as follows:
Make the annotated function be callable from C using its name. This can, for example, be used to expose functionality as a C-API when creating a custom Julia sysimage.
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