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1// RUN: %clang_cc1 -triple x86_64-apple-darwin11 -fsyntax-only -fblocks -Wcast-qual -verify %s2 3typedef const void *CFTypeRef;4typedef const struct __CFString *CFStringRef;5@class NSString;6 7@interface NSString8@end9 10CFTypeRef CFCreateSomething(void);11CFStringRef CFCreateString(void);12CFTypeRef CFGetSomething(void);13CFStringRef CFGetString(void);14 15id CreateSomething(void);16NSString *CreateNSString(void);17 18void from_cf(void) {19 id obj1 = (__bridge_transfer id)CFCreateSomething(); // expected-warning {{'__bridge_transfer' casts have no effect when not using ARC}}20 id obj2 = (__bridge_transfer NSString*)CFCreateString(); // expected-warning {{'__bridge_transfer' casts have no effect when not using ARC}}21 (__bridge int*)CFCreateSomething(); // expected-warning {{expression result unused}} expected-warning {{cast from 'const void *' to 'int *' drops const qualifier}}22 id obj3 = (__bridge id)CFGetSomething();23 id obj4 = (__bridge NSString*)CFGetString();24}25 26void to_cf(id obj) {27 CFTypeRef cf1 = (__bridge_retained CFTypeRef)CreateSomething(); // expected-warning {{'__bridge_retained' casts have no effect when not using ARC}}28 CFStringRef cf2 = (__bridge_retained CFStringRef)CreateNSString(); // expected-warning {{'__bridge_retained' casts have no effect when not using ARC}}29 CFTypeRef cf3 = (__bridge CFTypeRef)CreateSomething();30 CFStringRef cf4 = (__bridge CFStringRef)CreateNSString();31}32 33void fixits(void) {34 id obj1 = (id)CFCreateSomething();35 CFTypeRef cf1 = (CFTypeRef)CreateSomething();36}37 38#pragma clang diagnostic ignored "-Warc-bridge-casts-disallowed-in-nonarc"39 40void to_cf_ignored(id obj) {41 CFTypeRef cf1 = (__bridge_retained CFTypeRef)CreateSomething(); // no-warning42 CFTypeRef cf3 = (__bridge CFTypeRef)CreateSomething(); // no-warning43}44 45// Check that clang doesn't warn about dropping const from Objective-C object46// types.47void test_wcast_qual(void) {48 CFStringRef c;49 NSString *n0 = (NSString *)c;50 NSString **n1 = (NSString **)&c;51 const NSString *n2;52 const NSString **n3;53 void *p0 = (void *)n2;54 void **p1 = (void **)n3;55}56