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#include <stdio.h>
#include <string.h>
#include "../list.h"
#include "../mapcalc.h"
#include "../map.h"
/*
* Required function:
* Return the name of the main function which is useable in v.mapcalc.
*/
char *
fname (void)
{
return "dltest";
}
/*
* Required function:
* Return the prototype of the main function. Generally, it's the initial
* letter of the C-type, plus "m" for (MAP *) and "p" for (POINT *).
* Indirection doesn't fully work, but to return a pointer to one of the
* above types, the letter "a" is used ("ai" means an integer pointer).
*
* Each prototype needs to be represented by one of the typedef and switch
* cases in func.c of mapcalc.
*/
char *
proto (void)
{
return "m=mm";
}
/*
* This is the main function which needs to have the name and prototype
* as returned above.
*/
MAP *
dltest (MAP *m, MAP *n)
{
char namebuf[128];
printf ("Performing 2 arg dynamically loaded map function on maps "
"%s and %s\n", m->name, n->name);
sprintf (namebuf, "%s.%s", m->name, n->name);
m = (MAP *)listitem (sizeof (MAP));
m->name = strdup (namebuf);
return m;
}
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