Remove() [2/2]

string System.String.Remove ( int startIndex, int count )

inline

Definition at line 2285 of file String.cs.

    {
        if (startIndex < 0)
        {
            throw new ArgumentOutOfRangeException("startIndex", SR.ArgumentOutOfRange_StartIndex);
        }
        if (count < 0)
        {
            throw new ArgumentOutOfRangeException("count", SR.ArgumentOutOfRange_NegativeCount);
        }
        int length = Length;
        if (count > length - startIndex)
        {
            throw new ArgumentOutOfRangeException("count", SR.ArgumentOutOfRange_IndexCount);
        }
        if (count == 0)
        {
            return this;
        }
        int num = length - count;
        if (num == 0)
        {
            return Empty;
        }
        string text = FastAllocateString(num);
        Buffer.Memmove(ref text._firstChar, ref _firstChar, (nuint)startIndex);
        Buffer.Memmove(ref Unsafe.Add(ref text._firstChar, startIndex), ref Unsafe.Add(ref _firstChar, startIndex + count), (nuint)(num - startIndex));
        return text;
    }

References System.String._firstChar, System.SR.ArgumentOutOfRange_IndexCount, System.SR.ArgumentOutOfRange_NegativeCount, System.SR.ArgumentOutOfRange_StartIndex, System.count, System.String.Empty, System.String.FastAllocateString(), System.length, System.String.Length, System.Buffer.Memmove(), System.startIndex, and System.text.