Code inspection: Actual number of bytes read by 'Stream.Read()' is ignored

This inspection identifies cases where the return value of Stream.Read, representing the actual number of bytes read, is ignored. This can lead to incorrect processing of partially read data.

            
    public void Test(Stream stream)
    {
        Span<byte> buffer = stackalloc byte[16];
        stream.Read(buffer);
    }

        

            
    public void Test(Stream stream)
    {
        Span<byte> buffer = stackalloc byte[16];
        stream.ReadExactly(buffer);
    }

        

The suggested fix replaces Stream.Read with Stream.ReadExactly, ensuring that the entire buffer is read or an exception is thrown if that's not possible.

Last modified: 24 March 2025