/* This header file contains the function prototypes for 
 * Fortran standard generic intrinsic procedures (SGIPs).
 */

#ifndef __FORTRAN_SGIP_H__
#define __FORTRAN_SGIP_H__

#define FORTRAN_COMMAND_LINE_ARG_LENGTH_MAX 100
#define F_ARGC __fortran__command_line_arg_count
#define F_ARGL __fortran__command_line_arg_lengths
#define F_ARGV __fortran__command_line_arg_chars
#define F_PENL __fortran__program_entry_name_length
#define F_PENV __fortran__program_entry_name_chars

#define ERRSTAT_ARGUMENT_INVALID 1
#define ERRSTAT_ARGUMENT_OUT_OF_RANGE 2
#define ERRSTAT_NUMBER_OUT_OF_RANGE 3

$input int 	F_ARGC;
$assume(F_ARGC >= 0);
$input int	F_PENL;
#assume(F_PENL > 0);
$input int 	F_ARGL[F_ARGC];
$input char F_ARGV[F_ARGC][FORTRAN_COMMAND_LINE_ARG_LENGTH_MAX];
$input char F_PENV[F_PENL];

/* F2018: Sec. 16.9.51 COMMAND_ARGUMENT_COUNT()
 * Returns the number of command arguments, 
 * which can be configured as following: 
 * <code>$assume(F_ARGC == 1)</code>
 */
int 	__fortran__command_argument_count();

/* F2018: Sec. 16.9.83 GET_COMMAND_ARGUMENT(NUMNER [, VALUE, LENGTH, STATUS, ERRMSG])
 * Gets program invocation argument
 */
void 	__fortran__get_command_argument(
  int  *number,	/* the nth argument, 0 for program entry name*/
  char *value,	/* the variable pointing to the nth argument */
                /* if no such argument exists, blanks are assigend*/
  int  *length, /* the length of the value assigned to 'value' */
  int  *status, /* -1, if 'value' has insufficient length for assigned actual arg */
  				/*  0, if 'value' is correctly assigned */
  				/* >0, if the actual argument is invalid */
  char *errmsg	/* Processor-dependent error messages if 'status' is positive */
);

#endif