@@ -60,16 +60,16 @@
 - (void)OF_addFileDescriptor: (int)fd
 		  withEvents: (short)events
 {
 	struct pollfd *FDs = [_FDs items];
 	size_t i, count = [_FDs count];
-	BOOL found = NO;
+	bool found = false;
 
 	for (i = 0; i < count; i++) {
 		if (FDs[i].fd == fd) {
 			FDs[i].events |= events;
-			found = YES;
+			found = true;
 			break;
 		}
 	}
 
 	if (!found) {
@@ -118,21 +118,21 @@
 {
 	[self OF_removeFileDescriptor: fd
 			   withEvents: POLLOUT];
 }
 
-- (BOOL)observeWithTimeout: (double)timeout
+- (bool)observeWithTimeout: (double)timeout
 {
 	void *pool = objc_autoreleasePoolPush();
 	struct pollfd *FDs;
 	size_t i, nFDs, realEvents = 0;
 
 	[self OF_processQueue];
 
 	if ([self OF_processCache]) {
 		objc_autoreleasePoolPop(pool);
-		return YES;
+		return true;
 	}
 
 	objc_autoreleasePoolPop(pool);
 
 	FDs = [_FDs items];
@@ -143,11 +143,11 @@
 		@throw [OFOutOfRangeException exceptionWithClass: [self class]];
 #endif
 
 	if (poll(FDs, (nfds_t)nFDs,
 	    (int)(timeout != -1 ? timeout * 1000 : -1)) < 1)
-		return NO;
+		return false;
 
 	for (i = 0; i < nFDs; i++) {
 		pool = objc_autoreleasePoolPush();
 
 		if (FDs[i].revents & POLLIN) {
@@ -191,10 +191,10 @@
 
 		objc_autoreleasePoolPop(pool);
 	}
 
 	if (realEvents == 0)
-		return NO;
+		return false;
 
-	return YES;
+	return true;
 }
 @end