1 // RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.coreFoundation.CFNumber,osx.cocoa.RetainCount -analyzer-store=region -analyzer-constraints=range -verify -triple x86_64-apple-darwin9 %s 2 3 typedef signed long CFIndex; 4 typedef const struct __CFAllocator * CFAllocatorRef; 5 enum { kCFNumberSInt8Type = 1, kCFNumberSInt16Type = 2, 6 kCFNumberSInt32Type = 3, kCFNumberSInt64Type = 4, 7 kCFNumberFloat32Type = 5, kCFNumberFloat64Type = 6, 8 kCFNumberCharType = 7, kCFNumberShortType = 8, 9 kCFNumberIntType = 9, kCFNumberLongType = 10, 10 kCFNumberLongLongType = 11, kCFNumberFloatType = 12, 11 kCFNumberDoubleType = 13, kCFNumberCFIndexType = 14, 12 kCFNumberNSIntegerType = 15, kCFNumberCGFloatType = 16, 13 kCFNumberMaxType = 16 }; 14 typedef CFIndex CFNumberType; 15 typedef const struct __CFNumber * CFNumberRef; 16 extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr); 17 18 CFNumberRef f1(unsigned char x) { 19 return CFNumberCreate(0, kCFNumberSInt16Type, &x); // expected-warning{{An 8 bit integer is used to initialize a CFNumber object that represents a 16 bit integer. 8 bits of the CFNumber value will be garbage}} 20 } 21 22 __attribute__((cf_returns_retained)) CFNumberRef f2(unsigned short x) { 23 return CFNumberCreate(0, kCFNumberSInt8Type, &x); // expected-warning{{A 16 bit integer is used to initialize a CFNumber object that represents an 8 bit integer. 8 bits of the input integer will be lost}} 24 } 25 26 // test that the attribute overrides the naming convention. 27 __attribute__((cf_returns_not_retained)) CFNumberRef CreateNum(unsigned char x) { 28 return CFNumberCreate(0, kCFNumberSInt8Type, &x); // expected-warning{{leak}} 29 } 30 31 CFNumberRef f3(unsigned i) { 32 return CFNumberCreate(0, kCFNumberLongType, &i); // expected-warning{{A 32 bit integer is used to initialize a CFNumber object that represents a 64 bit integer}} 33 } 34
