uint32 RiderDebuggerSupport::FWideStringWrapper::CopyFromNullTerminatedStr()

in src/cpp/RiderLink/Source/RiderDebuggerSupport/Private/WideStringWrapper.cpp [25:50]

• 19 lines of code
• 8 McCabe index (conditional complexity)

uint32 RiderDebuggerSupport::FWideStringWrapper::CopyFromNullTerminatedStr(const wchar_t* SourceStr, uint32 SourceStrLength) const
{
    if (nullptr == SourceStr || 0 == SourceStrLength) return 0;
    if (PointerToString == nullptr || AllocatedBufferLength <= LengthPrefixSize) return 0;

    uint32 LocalDataLength = SourceStrLength;

    while (LocalDataLength > 0 && SourceStr[LocalDataLength - 1] == L'\0')
    {
        --LocalDataLength;
    }

    uint32 BytesToCopy = LocalDataLength * sizeof(wchar_t);

    if (BytesToCopy > AvailableStringSpaceInBytes)
    {
        BytesToCopy = AvailableStringSpaceInBytes;
        LocalDataLength = BytesToCopy / sizeof(wchar_t);
    }

    *WideStringLength = LocalDataLength;

    FMemory::Memcpy(PointerToString, SourceStr, BytesToCopy);

    return LocalDataLength;
}