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C++ AString::IsEmpty方法代码示例

本文整理汇总了C++中AString::IsEmpty方法的典型用法代码示例。如果您正苦于以下问题：C++ AString::IsEmpty方法的具体用法？C++ AString::IsEmpty怎么用？C++ AString::IsEmpty使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类AString的用法示例。


在下文中一共展示了AString::IsEmpty方法的15个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: Flags64ToString

AString Flags64ToString(const CUInt32PCharPair *pairs, unsigned num, UInt64 flags)
{
  AString s;
  for (unsigned i = 0; i < num; i++)
  {
    const CUInt32PCharPair &p = pairs[i];
    UInt64 flag = (UInt64)1 << (unsigned)p.Value;
    if ((flags & flag) != 0)
    {
      if (p.Name[0] != 0)
      {
        if (!s.IsEmpty())
          s += ' ';
        s += p.Name;
      }
    }
    flags &= ~flag;
  }
  if (flags != 0)
  {
    if (!s.IsEmpty())
      s += ' ';
    {
      char sz[32];
      sz[0] = '0';
      sz[1] = 'x';
      ConvertUInt64ToHex(flags, sz + 2);
      s += sz;
    }
  }
  return s;
}
开发者ID:670232921，项目名称:pfm_archive，代码行数:32，代码来源:PropVariantUtils.cpp

示例2: FlagsToString

AString FlagsToString(const char **names, unsigned num, UInt32 flags)
{
  AString s;
  for (unsigned i = 0; i < num; i++)
  {
    UInt32 flag = (UInt32)1 << i;
    if ((flags & flag) != 0)
    {
      const char *name = names[i];
      if (name != 0 && name[0] != 0)
      {
        if (!s.IsEmpty())
          s += ' ';
        s += name;
        flags &= ~flag;
      }
    }
  }
  if (flags != 0)
  {
    if (!s.IsEmpty())
      s += ' ';
    s += GetHex(flags);
  }
  return s;
}
开发者ID:basinilya，项目名称:7zip，代码行数:26，代码来源:PropVariantUtils.cpp

示例3: GetOpenArcErrorMessage

AString GetOpenArcErrorMessage(UInt32 errorFlags)
{
  AString s;
  for (unsigned i = 0; i < ARRAY_SIZE(k_ErrorFlagsMessages); i++)
  {
    UInt32 f = (1 << i);
    if ((errorFlags & f) == 0)
      continue;
    const char *m = k_ErrorFlagsMessages[i];
    if (!s.IsEmpty())
      s += '\n';
    s += m;
    errorFlags &= ~f;
  }
  if (errorFlags != 0)
  {
    char sz[16];
    sz[0] = '0';
    sz[1] = 'x';
    ConvertUInt32ToHex(errorFlags, sz + 2);
    if (!s.IsEmpty())
      s += '\n';
    s += sz;
  }
  return s;
}
开发者ID:faizalpranajaya，项目名称:snappy-driver-installer，代码行数:26，代码来源:ExtractCallbackConsole.cpp

示例4: GetArchiveProperty

STDMETHODIMP CHandler::GetArchiveProperty(PROPID propID, PROPVARIANT *value)
{
  COM_TRY_BEGIN
  NCOM::CPropVariant prop;
  if (_stream)
  {
  const CVolumeDescriptor &vol = _archive.VolDescs[_archive.MainVolDescIndex];
  switch (propID)
  {
    case kpidComment:
    {
      AString s;
      ADD_STRING("System", SystemId);
      ADD_STRING("Volume", VolumeId);
      ADD_STRING("VolumeSet", VolumeSetId);
      ADD_STRING("Publisher", PublisherId);
      ADD_STRING("Preparer", DataPreparerId);
      ADD_STRING("Application", ApplicationId);
      ADD_STRING("Copyright", CopyrightFileId);
      ADD_STRING("Abstract", AbstractFileId);
      ADD_STRING("Bib", BibFileId);
      prop = s;
      break;
    }
    case kpidCTime: { FILETIME utc; if (vol.CTime.GetFileTime(utc)) prop = utc; break; }
    case kpidMTime: { FILETIME utc; if (vol.MTime.GetFileTime(utc)) prop = utc; break; }
  }
  }

  switch (propID)
  {
    case kpidPhySize: prop = _archive.PhySize; break;
    case kpidErrorFlags:
    {
      UInt32 v = 0;
      if (!_archive.IsArc) v |= kpv_ErrorFlags_IsNotArc;
      if (_archive.UnexpectedEnd) v |= kpv_ErrorFlags_UnexpectedEnd;
      if (_archive.HeadersError) v |= kpv_ErrorFlags_HeadersError;
      prop = v;
      break;
    }
    
    case kpidError:
    {
      AString s;
      if (_archive.IncorrectBigEndian)
        AddErrorMessage(s, "Incorrect big-endian headers");
      if (_archive.SelfLinkedDirs)
        AddErrorMessage(s, "Self-linked directory");
      if (_archive.TooDeepDirs)
        AddErrorMessage(s, "Too deep directory levels");
      if (!s.IsEmpty())
        prop = s;
      break;
    }
  }
  prop.Detach(value);
  return S_OK;
  COM_TRY_END
}
开发者ID:w17，项目名称:7-Zip-zstd，代码行数:60，代码来源:IsoHandler.cpp

示例5: DependOnNode

// DependOnNode
//------------------------------------------------------------------------------
/*static*/ bool LinkerNode::DependOnNode( NodeGraph & nodeGraph,
                                          const BFFIterator & iter,
                                          const Function * function,
                                          const AString & nodeName,
                                          Dependencies & nodes )
{
    // silently ignore empty nodes
    if ( nodeName.IsEmpty() )
    {
        return true;
    }

    Node * node = nodeGraph.FindNode( nodeName );

    // does it exist?
    if ( node != nullptr )
    {
        // process it
        return DependOnNode( iter, function, node, nodes );
    }

    // node not found - create a new FileNode, assuming we are
    // linking against an externally built library
    node = nodeGraph.CreateFileNode( nodeName );
    nodes.Append( Dependency( node ) );
    return true;
}
开发者ID:liamkf，项目名称:fastbuild，代码行数:29，代码来源:LinkerNode.cpp

示例6: ReadDataString

static bool ReadDataString(LPCWSTR fileName, LPCSTR startID,
    LPCSTR endID, AString &stringResult)
{
  stringResult.Empty();
  NFile::NIO::CInFile inFile;
  if (!inFile.Open(fileName))
    return false;
  const int kBufferSize = (1 << 12);

  Byte buffer[kBufferSize];
  int signatureStartSize = lstrlenA(startID);
  int signatureEndSize = lstrlenA(endID);
  
  UInt32 numBytesPrev = 0;
  bool writeMode = false;
  UInt64 posTotal = 0;
  for (;;)
  {
    if (posTotal > (1 << 20))
      return (stringResult.IsEmpty());
    UInt32 numReadBytes = kBufferSize - numBytesPrev;
    UInt32 processedSize;
    if (!inFile.Read(buffer + numBytesPrev, numReadBytes, processedSize))
      return false;
    if (processedSize == 0)
      return true;
    UInt32 numBytesInBuffer = numBytesPrev + processedSize;
    UInt32 pos = 0;
    for (;;)
    {
      if (writeMode)
      {
        if (pos > numBytesInBuffer - signatureEndSize)
          break;
        if (memcmp(buffer + pos, endID, signatureEndSize) == 0)
          return true;
        char b = buffer[pos];
        if (b == 0)
          return false;
        stringResult += b;
        pos++;
      }
      else
      {
        if (pos > numBytesInBuffer - signatureStartSize)
          break;
        if (memcmp(buffer + pos, startID, signatureStartSize) == 0)
        {
          writeMode = true;
          pos += signatureStartSize;
        }
        else
          pos++;
      }
    }
    numBytesPrev = numBytesInBuffer - pos;
    posTotal += pos;
    memmove(buffer, buffer + pos, numBytesPrev);
  }
}
开发者ID:bks，项目名称:qz7，代码行数:60，代码来源:Main.cpp

示例7: MultiByteToUnicodeString

UString MultiByteToUnicodeString(const AString &srcString, UINT codePage)
{
  if (!srcString.IsEmpty())
  {
    UString resultString;
    const char * path = &srcString[0];

    CFStringRef cfpath = CFStringCreateWithCString(NULL,path,kCFStringEncodingUTF8);

    if (cfpath)
    {

       CFMutableStringRef cfpath2 = CFStringCreateMutableCopy(NULL,0,cfpath);
       CFRelease(cfpath);
       CFStringNormalize(cfpath2,kCFStringNormalizationFormC);
    
       size_t n = CFStringGetLength(cfpath2);
       for(size_t i =   0 ; i< n ;i++) {
         UniChar uc = CFStringGetCharacterAtIndex(cfpath2,i);
         resultString += (wchar_t)uc; // FIXME
       }

       CFRelease(cfpath2);  

       return resultString;
    }
  }

  UString resultString;
  for (int i = 0; i < srcString.Len(); i++)
    resultString += wchar_t(srcString[i] & 255);

  return resultString;
}
开发者ID:abidrahmank，项目名称:cherrytree，代码行数:34，代码来源:StringConvert.cpp

示例8: ScanUserYesNoAllQuit

NUserAnswerMode::EEnum ScanUserYesNoAllQuit(CStdOutStream *outStream)
{
  (*outStream) << kFirstQuestionMessage;
  for (;;)
  {
    (*outStream) << kHelpQuestionMessage;
    outStream->Flush();
    AString scannedString = g_StdIn.ScanStringUntilNewLine();
    scannedString.Trim();
    if (!scannedString.IsEmpty())
      switch(
        ::MyCharUpper(
        #ifdef UNDER_CE
        (wchar_t)
        #endif
        scannedString[0]))
      {
        case kYes:
          return NUserAnswerMode::kYes;
        case kNo:
          return NUserAnswerMode::kNo;
        case kYesAll:
          return NUserAnswerMode::kYesAll;
        case kNoAll:
          return NUserAnswerMode::kNoAll;
        case kAutoRenameAll:
          return NUserAnswerMode::kAutoRenameAll;
        case kQuit:
          return NUserAnswerMode::kQuit;
      }
  }
}
开发者ID:ccwls3290，项目名称:sinit，代码行数:32，代码来源:UserInputUtils.cpp

示例9: AStringAssignment

// AStringAssignment
//------------------------------------------------------------------------------
void TestAString::AStringAssignment() const
{
    AString str;
    str = "test";
    TEST_ASSERT( str.GetLength() == 4 );
    TEST_ASSERT( str.GetReserved() >= 4 );
    TEST_ASSERT( str.IsEmpty() == false );
    TEST_ASSERT( str.MemoryMustBeFreed() == true );

    AString str2;
    str2 = str;
    TEST_ASSERT( str2.GetLength() == 4 );
    TEST_ASSERT( str2.GetReserved() >= 4 );
    TEST_ASSERT( str2.IsEmpty() == false );
    TEST_ASSERT( str2.MemoryMustBeFreed() == true );

    const char * testData = "hellozzzzzzzzz";
    AString str3;
    str3.Assign( testData, testData + 5 );
    TEST_ASSERT( str3.GetLength() == 5 );
    TEST_ASSERT( str3.GetReserved() >= 5 );
    TEST_ASSERT( str3.IsEmpty() == false );
    TEST_ASSERT( str3.MemoryMustBeFreed() == true );

    // assign empty
    {
        AString dst;
        dst.Assign( AString::GetEmpty() );
    }
    {
        AString dst;
        dst.Assign( AString::GetEmpty().Get(), AString::GetEmpty().Get() );
    }
}
开发者ID:dummyunit，项目名称:fastbuild，代码行数:36，代码来源:TestAString.cpp

示例10: MultiByteToUnicodeString2

void MultiByteToUnicodeString2(UString &dest, const AString &src, UINT /* codePage */)
{
  dest.Empty();
  if (src.IsEmpty())
    return;

  size_t limit = ((size_t)src.Len() + 1) * 2;
  wchar_t *d = dest.GetBuf((unsigned)limit);
  size_t len = mbstowcs(d, src, limit);
  if (len != (size_t)-1)
  {
    dest.ReleaseBuf_SetEnd((unsigned)len);
    return;
  }
  
  {
    unsigned i;
    const char *s = (const char *)src;
    for (i = 0;;)
    {
      Byte c = (Byte)s[i];
      if (c == 0)
        break;
      d[i++] = (wchar_t)c;
    }
    d[i] = 0;
    dest.ReleaseBuf_SetLen(i);
  }
}
开发者ID:Alexander-r，项目名称:physfs，代码行数:29，代码来源:StringConvert.cpp

示例11: 

// CreateTempFile
//------------------------------------------------------------------------------
/*static*/ bool WorkerThread::CreateTempFile( const AString & tmpFileName,
										FileStream & file )
{
	ASSERT( tmpFileName.IsEmpty() == false );
	ASSERT( PathUtils::IsFullPath( tmpFileName ) );
	return file.Open( tmpFileName.Get(), FileStream::WRITE_ONLY );
}
开发者ID:zhangf911，项目名称:fastbuild，代码行数:9，代码来源:WorkerThread.cpp

示例12: ScanUserYesNoAllQuit

NUserAnswerMode::EEnum ScanUserYesNoAllQuit(CStdOutStream *outStream)
{
  if (outStream)
    *outStream << kFirstQuestionMessage;
  for (;;)
  {
    if (outStream)
    {
      *outStream << kHelpQuestionMessage;
      outStream->Flush();
    }
    AString scannedString = g_StdIn.ScanStringUntilNewLine();
    scannedString.Trim();
    if (!scannedString.IsEmpty())
      switch (::MyCharLower_Ascii(scannedString[0]))
      {
        case kYes:    return NUserAnswerMode::kYes;
        case kNo:     return NUserAnswerMode::kNo;
        case kYesAll: return NUserAnswerMode::kYesAll;
        case kNoAll:  return NUserAnswerMode::kNoAll;
        case kAutoRenameAll: return NUserAnswerMode::kAutoRenameAll;
        case kQuit:   return NUserAnswerMode::kQuit;
      }
  }
}
开发者ID:ming-hai，项目名称:soui，代码行数:25，代码来源:UserInputUtils.cpp

示例13: WritePGItem

// WritePGItem
//------------------------------------------------------------------------------
void VSProjectGenerator::WritePGItem( const char * xmlTag, const AString & value )
{
    if ( value.IsEmpty() )
    {
        return;
    }
    Write( "    <%s>%s</%s>\n", xmlTag, value.Get(), xmlTag );
}
开发者ID:dontnod，项目名称:fastbuild，代码行数:10，代码来源:VSProjectGenerator.cpp

示例14: AddSpaceAndString

static void AddSpaceAndString(AString &res, const AString &newString)
{
  if (!newString.IsEmpty())
  {
    res.Add_Space_if_NotEmpty();
    res += newString;
  }
}
开发者ID:unknownbrackets，项目名称:maxcso，代码行数:8，代码来源:UefiHandler.cpp

示例15: AStringConstructors

REGISTER_TESTS_END

// AStringConstructors
//------------------------------------------------------------------------------
void TestAString::AStringConstructors() const
{
    {
        // AString with no arguments
        AString empty;
        TEST_ASSERT( empty.GetLength() == 0 );
        TEST_ASSERT( empty.GetReserved() == 0 );
        TEST_ASSERT( empty.IsEmpty() == true );
        TEST_ASSERT( empty.MemoryMustBeFreed() == false );
    }
    {
        // AString with reserve capacity argument
        AString empty( 16 );
        TEST_ASSERT( empty.GetLength() == 0 );
        TEST_ASSERT( empty.GetReserved() == 16 );
        TEST_ASSERT( empty.IsEmpty() == true );
        TEST_ASSERT( empty.MemoryMustBeFreed() == true );
    }
    {
        // AString from char *
        AString fromCharStar( "hello" );
        TEST_ASSERT( fromCharStar.GetLength() == 5 );
        TEST_ASSERT( fromCharStar.GetReserved() >= 5 );
        TEST_ASSERT( fromCharStar.IsEmpty() == false );
        TEST_ASSERT( fromCharStar.MemoryMustBeFreed() == true );

        // AString from AString
        AString fromAString( fromCharStar );
        TEST_ASSERT( fromAString.GetLength() == 5 );
        TEST_ASSERT( fromAString.GetReserved() >= 5 );
        TEST_ASSERT( fromAString.IsEmpty() == false );
        TEST_ASSERT( fromAString.MemoryMustBeFreed() == true );
    }
    {
        const char * hello = "hellohellohello";
        AString fromCharStarPair( hello, hello + 5 );
        TEST_ASSERT( fromCharStarPair.GetLength() == 5 );
        TEST_ASSERT( fromCharStarPair.GetReserved() >= 5 );
        TEST_ASSERT( fromCharStarPair.IsEmpty() == false );
        TEST_ASSERT( fromCharStarPair.MemoryMustBeFreed() == true );
    }
}
开发者ID:dummyunit，项目名称:fastbuild，代码行数:46，代码来源:TestAString.cpp


注：本文中的AString::IsEmpty方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。