@@ -202,11 +202,11 @@
 	struct timespec rqtp;
 
 	rqtp.tv_sec = (time_t)timeInterval;
 	rqtp.tv_nsec = lrint((timeInterval - rqtp.tv_sec) * 1000000000);
 
-	if (rqtp.tv_sec != floor(timeInterval))
+	if (rqtp.tv_sec != trunc(timeInterval))
 		@throw [OFOutOfRangeException exception];
 
 	nanosleep(&rqtp, NULL);
 #elif defined(OF_AMIGAOS)
 	if (timeInterval * 50 > ULONG_MAX)
@@ -231,11 +231,11 @@
 	if (timeInterval > UINT_MAX)
 		@throw [OFOutOfRangeException exception];
 
 	sleep((unsigned int)timeInterval);
 	usleep((unsigned int)lrint(
-	    (timeInterval - floor(timeInterval)) * 1000000));
+	    (timeInterval - trunc(timeInterval)) * 1000000));
 #endif
 }
 
 + (void)sleepUntilDate: (OFDate *)date
 {