GetDirectoryNameOffset()

static int System.IO.Path.GetDirectoryNameOffset ( ReadOnlySpan< char > path )

inlinestaticpackage

Definition at line 149 of file Path.cs.

    {
        int rootLength = PathInternal.GetRootLength(path);
        int num = path.Length;
        if (num <= rootLength)
        {
            return -1;
        }
        while (num > rootLength && !PathInternal.IsDirectorySeparator(path[--num]))
        {
        }
        while (num > rootLength && PathInternal.IsDirectorySeparator(path[num - 1]))
        {
            num--;
        }
        return num;
    }

References System.IO.PathInternal.GetRootLength(), System.IO.PathInternal.IsDirectorySeparator(), and System.ReadOnlySpan< T >.Length.

Referenced by System.IO.Path.GetDirectoryName(), and System.IO.Path.GetDirectoryName().