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1.4.2 Subroutine Names

All the fortran FITSIO subroutine names begin with the letters 'ft....' and are 5 or 6 characters long. Programmers should avoid naming their own subroutines beginning with 'ft' to prevent conflicts. In general, routines that write or put information into the FITS file have names beginning with `ftp...' and routines that read or get information from FITS files have names beginning with `ftg...'. The C macro and SPP wrapper routines have the identical calling arguments as do the fortran routines, and the names are the same except that they begin with `FC' or `fs' respectively, instead of `ft'.