Note on the C routines

This small set of C routines is provided as a start up kit to users wanting to link the HEALPix routines with some other languages (C, C++, IDL, perl, ...), and it was actually mainly provided by various users (see individual routines for details). As for the rest of the HEALPix package, all interested persons are welcome to contribute to this effort.

Version 3.83, 2024-11-13