6. Advanced Interface Subroutines

This chapter defines all the available subroutines in the FITSIO user interface. For completeness, the basic subroutines described in the previous chapter are also repeated here. A right arrow symbol is used here to separate the input parameters from the output parameters in the definition of each subroutine. This symbol is not actually part of the calling sequence. An alphabetical list and definition of all the parameters is given at the end of this section.