CFNumber.c revision 04bc87683acacce119967dfa5f7c35b4ecef012a 
1// RUN: clang -checker-cfref -verify %s
2
3typedef signed long CFIndex;
4typedef const struct __CFAllocator * CFAllocatorRef;
5enum { 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 };
14typedef CFIndex CFNumberType;
15typedef const struct __CFNumber * CFNumberRef;
16extern CFNumberRef CFNumberCreate(CFAllocatorRef allocator, CFNumberType theType, const void *valuePtr);
17
18#include <stdint.h>
19
20CFNumberRef f1() {
21  uint8_t x = 1;
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
25CFNumberRef f2() {
26  uint16_t x = 1;
27  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.}}
28}
29