1 // RUN: %clang_cc1 -fsyntax-only -verify %s 2 3 typedef unsigned int size_t; 4 @protocol P @end 5 6 @interface NSMutableArray 7 - (id)objectAtIndexedSubscript:(size_t)index; 8 - (void)setObject:(id)object atIndexedSubscript:(size_t)index; 9 @end 10 11 @interface NSMutableDictionary 12 - (id)objectForKeyedSubscript:(id)key; 13 - (void)setObject:(id)object forKeyedSubscript:(size_t)key; 14 @end 15 16 id func() { 17 NSMutableArray *array; 18 float f; 19 array[f] = array; // expected-error {{indexing expression is invalid because subscript type 'float' is not an integral or Objective-C pointer type}} 20 return array[3.14]; // expected-error {{indexing expression is invalid because subscript type 'double' is not an integral or Objective-C pointer type}} 21 } 22 23 void test_unused() { 24 NSMutableArray *array; 25 array[10]; // expected-warning {{container access result unused - container access should not be used for side effects}} 26 27 NSMutableDictionary *dict; 28 dict[array]; // expected-warning {{container access result unused - container access should not be used for side effects}} 29 } 30 31
