[issue33012] Invalid function cast warnings with gcc 8 for METH_NOARGS

[Siddhesh Poyarekar]

Siddhesh Poyarekar <siddhesh.poyarekar at gmail.com> added the comment:

> Pedantically the correct way is to cast to a function pointer with no prototype (empty parentheses) and from that to the target type. See for example. See for example https://godbolt.org/g/FdPdUj

This is one way that the gcc diagnostics explicitly allow in addition to variable arguments like so: https://godbolt.org/g/Dtb4fv

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