CFNumber.c revision a4c7a4314ffbe402091695874e93d9b0a79c8099
1// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.coreFoundation.CFNumber -analyzer-store=region -analyzer-constraints=basic -verify -triple x86_64-apple-darwin9 %s 2// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.coreFoundation.CFNumber -analyzer-store=region -analyzer-constraints=range -verify -triple x86_64-apple-darwin9 %s 3 4typedef signed long CFIndex; 5typedef const struct __CFAllocator * CFAllocatorRef; 6enum { kCFNumberSInt8Type = 1, kCFNumberSInt16Type = 2, 7 kCFNumberSInt32Type = 3, kCFNumberSInt64Type = 4, 8 kCFNumberFloat32Type = 5, kCFNumberFloat64Type = 6, 9 kCFNumberCharType = 7, kCFNumberShortType = 8, 10 kCFNumberIntType = 9, kCFNumberLongType = 10, 11 kCFNumberLongLongType = 11, kCFNumberFloatType = 12, 12 kCFNumberDoubleType = 13, kCFNumberCFIndexType = 14, 13 kCFNumberNSIntegerType = 15, kCFNumberCGFloatType = 16, 14 kCFNumberMaxType = 16 }; 15typedef CFIndex CFNumberType; 16typedef const struct __CFNumber * CFNumberRef; 17extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr); 18 19CFNumberRef f1(unsigned char x) { 20 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.}} 21} 22 23__attribute__((cf_returns_retained)) CFNumberRef f2(unsigned short x) { 24 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.}} 25} 26 27// test that the attribute overrides the naming convention. 28__attribute__((cf_returns_not_retained)) CFNumberRef CreateNum(unsigned char x) { 29 return CFNumberCreate(0, kCFNumberSInt8Type, &x); // expected-warning{{leak}} 30} 31 32CFNumberRef f3(unsigned i) { 33 return CFNumberCreate(0, kCFNumberLongType, &i); // expected-warning{{A 32 bit integer is used to initialize a CFNumber object that represents a 64 bit integer.}} 34} 35