I have a bunch of headers in C99 which use the VLA pointer feature to clarify which parameter determines the size of array arguments, like this:

void do_something(int n, float a[n]);

Obviously, when trying to include that in C++ source, this ([n]) doesn’t parse as extern "C" because C++ cannot be bothered catching up with a C standard older than our youngest employees.

Is there a convenient way to make that work, i.e. without hand-editing the .h files? Perhaps some tool to translate the declaration to the equivalent (in terms of what’s implemented)

void do_something(int n, float *a);

I’m aware of __counted_by but I’m not ready to migrate the code-base to C23.