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/* Example of a C++ extension to icon via loadfunc,
* without garbage collection difficulties.
* Type 'make iexample' to build.
* Carl Sturtivant, 2008/3/16
*/
#include "loadfuncpp.h"
using namespace Icon;
#include <cstdio>
class Widget: public external {
long state;
public:
Widget(long x): state(x) {}
virtual value name() {
return "Widget";
}
virtual external* copy() {
return new Widget(state);
}
virtual value image() {
char sbuf[100];
sprintf(sbuf, "Widget_%ld(%ld)", id, state);
return value(NewString, sbuf);
}
};
extern "C" int iexample(int argc, value argv[]) {
argv[0] = new Widget(99);
return SUCCEEDED;
}
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