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/* Contributed by Nicola Pero , December 2010.  */

/* { dg-do compile } */

#include 

/* Test that you can not declare two methods, in the same protocol,

   with the same name but conflicting method signatures.  */

@protocol MyProtocol

+ (int) method1: (int)x;   /* { dg-message "previous declaration" } */

+ (float) method1: (int)x; /* { dg-error "duplicate declaration of method .\\+method1." } */

- (int) method2: (int)x;   /* { dg-message "previous declaration" } */

- (int) method2: (float)x; /* { dg-error "duplicate declaration of method .\\-method2." } */

@optional

+ (int *) method3: (int)x;    /* { dg-message "previous declaration" } */

+ (int *) method3: (int **)x; /* { dg-error "duplicate declaration of method .\\+method3." } */

- (id) method4: (id)x;   /* { dg-message "previous declaration" } */

- (void) method4: (id)x; /* { dg-error "duplicate declaration of method .\\-method4." } */

@end

/* We don't test conflicting types between @required and @optional

   methods, as that is tested in method-conflict-2.  */