Implemented structs

lib/time/time.q

@@ -1,4 +1,3 @@
-import mem
 import sys
 
 sleep(nanoseconds Int) {
@@ -8,10 +7,9 @@ sleep(nanoseconds Int) {
 		seconds, nanoseconds = nanoseconds / 1000000000
 	}
 
-	timespec := mem.alloc(16)
-	store(timespec, 8, seconds)
-	offset := timespec + 8
-	store(offset, 8, nanoseconds)
-	sys.nanosleep(timespec)
-	mem.free(timespec, 16)
+	duration := new(timespec)
+	duration.seconds = seconds
+	duration.nanoseconds = nanoseconds
+	sys.nanosleep(duration)
+	delete(duration)
 }