CopyTo() [2/2]

void System.Text.StringBuilder.CopyTo ( int sourceIndex, Span< char > destination, int count )

inline

Definition at line 979 of file StringBuilder.cs.

    {
        if (count < 0)
        {
            throw new ArgumentOutOfRangeException("count", SR.Arg_NegativeArgCount);
        }
        if ((uint)sourceIndex > (uint)Length)
        {
            throw new ArgumentOutOfRangeException("sourceIndex", SR.ArgumentOutOfRange_Index);
        }
        if (sourceIndex > Length - count)
        {
            throw new ArgumentException(SR.Arg_LongerThanSrcString);
        }
        StringBuilder stringBuilder = this;
        int num = sourceIndex + count;
        int num2 = count;
        while (count > 0)
        {
            int num3 = num - stringBuilder.m_ChunkOffset;
            if (num3 >= 0)
            {
                num3 = Math.Min(num3, stringBuilder.m_ChunkLength);
                int num4 = count;
                int num5 = num3 - count;
                if (num5 < 0)
                {
                    num4 += num5;
                    num5 = 0;
                }
                num2 -= num4;
                count -= num4;
                new ReadOnlySpan<char>(stringBuilder.m_ChunkChars, num5, num4).CopyTo(destination.Slice(num2));
            }
            stringBuilder = stringBuilder.m_ChunkPrevious;
        }
    }

References System.SR.Arg_LongerThanSrcString, System.SR.Arg_NegativeArgCount, System.SR.ArgumentOutOfRange_Index, System.Collections.Generic.Dictionary< TKey, TValue >.CopyTo(), System.count, System.destination, System.Runtime.Serialization.Dictionary, System.Text.StringBuilder.Length, System.Math.Min(), and System.sourceIndex.