clang/test/Analysis/cfref_rdar6080742.c

   1 // RUN: %clang_analyze_cc1 -analyzer-checker=core,alpha.core -verify %s
   2 // expected-no-diagnostics
   3
   4 // This test case was reported in <rdar:problem/6080742>.
   5 // It tests path-sensitivity with respect to '!(cfstring != 0)' (negation of inequality).
   6
   7 int printf(const char *restrict,...);
   8 typedef unsigned long UInt32;
   9 typedef signed long SInt32;
  10 typedef SInt32  OSStatus;
  11 typedef unsigned char Boolean;
  12 enum { noErr = 0};
  13 typedef const void *CFTypeRef;
  14 typedef const struct __CFString *CFStringRef;
  15 typedef const struct __CFAllocator *CFAllocatorRef;
  16 extern void     CFRelease(CFTypeRef cf);
  17 typedef UInt32  CFStringEncoding;
  18 enum { kCFStringEncodingMacRoman = 0, kCFStringEncodingWindowsLatin1 = 0x0500,
  19        kCFStringEncodingISOLatin1 = 0x0201, kCFStringEncodingNextStepLatin = 0x0B01,
  20        kCFStringEncodingASCII = 0x0600, kCFStringEncodingUnicode = 0x0100,
  21        kCFStringEncodingUTF8 = 0x08000100, kCFStringEncodingNonLossyASCII = 0x0BFF,
  22        kCFStringEncodingUTF16 = 0x0100, kCFStringEncodingUTF16BE = 0x10000100,
  23        kCFStringEncodingUTF16LE = 0x14000100, kCFStringEncodingUTF32 = 0x0c000100,
  24        kCFStringEncodingUTF32BE = 0x18000100, kCFStringEncodingUTF32LE = 0x1c000100};
  25 extern CFStringRef CFStringCreateWithCString(CFAllocatorRef alloc, const char *cStr, CFStringEncoding encoding);
  26
  27 enum { memROZWarn = -99, memROZError = -99, memROZErr = -99, memFullErr = -108,
  28        nilHandleErr = -109, memWZErr = -111, memPurErr = -112, memAdrErr = -110,
  29        memAZErr = -113, memPCErr = -114, memBCErr = -115, memSCErr = -116, memLockedErr = -117};
  30
  31 #define DEBUG1
  32
  33 void            DebugStop(const char *format,...);
  34 void            DebugTraceIf(unsigned int condition, const char *format,...);
  35 Boolean         DebugDisplayOSStatusMsg(OSStatus status, const char *statusStr, const char *fileName, unsigned long lineNumber);
  36
  37 #define Assert(condition)if (!(condition)) { DebugStop("Assertion failure: %s [File: %s, Line: %lu]", #condition, __FILE__, __LINE__); }
  38 #define AssertMsg(condition, message)if (!(condition)) { DebugStop("Assertion failure: %s (%s) [File: %s, Line: %lu]", #condition, message, __FILE__, __LINE__); }
  39 #define Require(condition)if (!(condition)) { DebugStop("Assertion failure: %s [File: %s, Line: %lu]", #condition, __FILE__, __LINE__); }
  40 #define RequireAction(condition, action)if (!(condition)) { DebugStop("Assertion failure: %s [File: %s, Line: %lu]", #condition, __FILE__, __LINE__); action }
  41 #define RequireActionSilent(condition, action)if (!(condition)) { action }
  42 #define AssertNoErr(err){ DebugDisplayOSStatusMsg((err), #err, __FILE__, __LINE__); }
  43 #define RequireNoErr(err, action){ if( DebugDisplayOSStatusMsg((err), #err, __FILE__, __LINE__) ) { action }}
  44
  45 void DebugStop(const char *format,...); /* Not an abort function. */
  46
  47 int main(int argc, char *argv[]) {
  48   CFStringRef     cfString;
  49   OSStatus        status = noErr;
  50   cfString = CFStringCreateWithCString(0, "hello", kCFStringEncodingUTF8);
  51   RequireAction(cfString != 0, return memFullErr;) //no - warning
  52     printf("cfstring %p\n", cfString);
  53   Exit:
  54   CFRelease(cfString);
  55   return 0;
  56 }