Modules/xxmodule.c

/***********************************************************
Copyright 1991, 1992, 1993, 1994 by Stichting Mathematisch Centrum,
Amsterdam, The Netherlands.

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documentation for any purpose and without fee is hereby granted, 
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******************************************************************/

/* xx module */

#include "allobjects.h"
#include "modsupport.h"


/* Function of two integers returning integer */

static object *
xx_foo(self, args)
	object *self; /* Not used */
	object *args;
{
	long i, j;
	long res;
	if (!getargs(args, "(ll)", &i, &j))
		return NULL;
	res = i+j; /* XXX Do something here */
	return newintobject(res);
}


/* Function of no arguments returning None */

static object *
xx_bar(self, args)
	object *self; /* Not used */
	object *args;
{
	int i, j;
	if (!getnoarg(args))
		return NULL;
	/* XXX Do something here */
	INCREF(None);
	return None;
}


/* List of functions defined in the module */

static struct methodlist xx_methods[] = {
	{"foo",		xx_foo},
	{"bar",		xx_bar},
	{NULL,		NULL}		/* sentinel */
};


/* Initialization function for the module (*must* be called initxx) */

void
initxx()
{
	object *m, *d, *x;

	/* Create the module and add the functions */
	m = initmodule("xx", xx_methods);

	/* Add some symbolic constants to the module */
	d = getmoduledict(m);
	x = newstringobject("xx.error");
	dictinsert(d, "error", x);
	x = newintobject(42L);
	dictinsert(d, "magic", x);

	/* Check for errors */
	if (err_occurred())
		fatal("can't initialize module xx");
}