1/* Contributed by Nicola Pero <nicola.pero@meta-innovation.com>, December 2010. */ 2/* { dg-do compile } */ 3 4#include <objc/objc.h> 5 6/* Test that you can not declare two methods, in the same protocol, 7 with the same name but conflicting method signatures. */ 8 9@protocol MyProtocol 10+ (int) method1: (int)x; /* { dg-message "previous declaration" } */ 11+ (float) method1: (int)x; /* { dg-error "duplicate declaration of method .\\+method1." } */ 12 13- (int) method2: (int)x; /* { dg-message "previous declaration" } */ 14- (int) method2: (float)x; /* { dg-error "duplicate declaration of method .\\-method2." } */ 15 16@optional 17+ (int *) method3: (int)x; /* { dg-message "previous declaration" } */ 18+ (int *) method3: (int **)x; /* { dg-error "duplicate declaration of method .\\+method3." } */ 19 20- (id) method4: (id)x; /* { dg-message "previous declaration" } */ 21- (void) method4: (id)x; /* { dg-error "duplicate declaration of method .\\-method4." } */ 22@end 23 24/* We don't test conflicting types between @required and @optional 25 methods, as that is tested in method-conflict-2. */ 26 27