CFNumber.c revision d1e015eb441910937c74d489970322a3a3491a67 
1// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.coreFoundation.CFNumber -analyzer-store=basic -analyzer-constraints=basic -verify -triple x86_64-apple-darwin9 %s
2// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.coreFoundation.CFNumber -analyzer-store=basic -analyzer-constraints=range -verify -triple x86_64-apple-darwin9 %s
3// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.coreFoundation.CFNumber -analyzer-store=region -analyzer-constraints=basic -verify -triple x86_64-apple-darwin9 %s
4// RUN: %clang_cc1 -analyze -analyzer-checker=core,osx.coreFoundation.CFNumber -analyzer-store=region -analyzer-constraints=range -verify -triple x86_64-apple-darwin9 %s
5
6typedef signed long CFIndex;
7typedef const struct __CFAllocator * CFAllocatorRef;
8enum { kCFNumberSInt8Type = 1, kCFNumberSInt16Type = 2,
9       kCFNumberSInt32Type = 3, kCFNumberSInt64Type = 4,
10       kCFNumberFloat32Type = 5, kCFNumberFloat64Type = 6,
11       kCFNumberCharType = 7, kCFNumberShortType = 8,
12       kCFNumberIntType = 9, kCFNumberLongType = 10,
13       kCFNumberLongLongType = 11, kCFNumberFloatType = 12,
14       kCFNumberDoubleType = 13, kCFNumberCFIndexType = 14,
15       kCFNumberNSIntegerType = 15, kCFNumberCGFloatType = 16,
16       kCFNumberMaxType = 16 };
17typedef CFIndex CFNumberType;
18typedef const struct __CFNumber * CFNumberRef;
19extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr);
20
21CFNumberRef f1(unsigned char x) {
22  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.}}
23}
24
25__attribute__((cf_returns_retained)) CFNumberRef f2(unsigned short x) {
26  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.}}
27}
28
29// test that the attribute overrides the naming convention.
30__attribute__((cf_returns_not_retained)) CFNumberRef CreateNum(unsigned char x) {
31  return CFNumberCreate(0, kCFNumberSInt8Type, &x); // expected-warning{{leak}}
32}
33
34CFNumberRef f3(unsigned i) {
35  return CFNumberCreate(0, kCFNumberLongType, &i); // expected-warning{{A 32 bit integer is used to initialize a CFNumber object that represents a 64 bit integer.}}
36}
37