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heainit

headas.h Header file containing function prototypes, etc. headas_init.c Contains routines called internally - developers should not ever need to call these explicitly:

int headas_init(int, char **) Calls routines to initialize PIL and output streams. It also deals with standard HEAdas parameters (chatter, clobber, history).

int headas_close() Closes output streams and PIL.

int hdIOInit() Checks environment variables (eg, HEADASOUTPUT, HEADASERROR) and sets up output streams.

int hd_pil_err_logger(char *s) Default PIL error logging routine. Simply prints to stderr.

headas_main.c This file comprises the main program unit for every task. It calls headas_init() followed by the task subroutine itself and then calls headas_close() after the task completes. This main routine is not part of any library and must be explicitly included by all C tasks (via #include "headas_main.c"). For f77 tasks it is automatically compiled and linked in by the Makefile.



Bryan Irby 2004-12-08