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#include <u.h>
#include <libc.h>
#include "interval.h"
char *
yn(int n)
{
return n == 0? "no": "yes";
}
void
usage(void)
{
fprint(2, "usage: %s\n", argv0);
exits("usage");
}
void
main(int argc, char *argv[])
{
Interval *a, *b;
ARGBEGIN{
default: usage();
}ARGEND;
if(argc != 0)
usage();
a = mkinterval(20, 30);
b = mkinterval(25, 60);
print("a before b:\t%s\n", yn(a->before(a, b)));
print("a equals b:\t%s\n", yn(a->equals(a, b)));
print("a overlaps b:\t%s\n", yn(a->overlaps(a, b)));
print("a meets b:\t%s\n", yn(a->meets(a, b)));
print("a during b:\t%s\n", yn(a->during(a, b)));
print("a intersects b:\t%s\n", yn(a->intersects(a, b)));
rminterval(a);
rminterval(b);
exits(nil);
}
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