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[/] [scarts/] [trunk/] [toolchain/] [scarts-gcc/] [gcc-4.1.1/] [gcc/] [testsuite/] [objc/] [execute/] [formal_protocol-2.m] - Rev 12
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/* Contributed by Nicola Pero - Fri Mar 9 21:35:47 CET 2001 */ #include <objc/objc.h> #include <objc/Object.h> /* Test defining a protocol, a class adopting it, and using an object of type `id <protocol>'. */ @protocol Enabling - (BOOL) isEnabled; - (void) setEnabled: (BOOL)flag; @end @interface Feature : Object <Enabling> { const char *name; BOOL isEnabled; } @end @implementation Feature - (BOOL) isEnabled { return isEnabled; } - (void) setEnabled: (BOOL)flag { isEnabled = flag; } @end int main (void) { id <Enabling> object; object = [Feature new]; [object setEnabled: YES]; if (![object isEnabled]) { abort (); } return 0; }