iterate through text using fixed statement

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Method

public static unsafe void UnderscoreSpaces(string text)
{
    fixed (char* c = text)
    {
        // iterate through text
        for (int i = 0; c[i] != 0; i++)
        {
            // replace space with underscore
            if (c[i] == 32)
            {
                c[i] = '_';
            }
        }
    }
}

Use

string text = "this is my text";
UnderscoreSpaces(text);
Console.WriteLine(text);

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