C code to C# from reactos

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1.00/5 (3 votes)

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I've converted a source code in C language to C# but there is a lot of errors, I need a help:

internal static VOID partstrlwr(string str)
{
    string c = str;
    while ( c && !_istspace ( c) && c != _T('='))
    {
        c = _totlower ( c);
        c++;
    }
}

Posted 26-Aug-14 4:49am

elmutasim23

Updated 26-Aug-14 4:59am

Leo Chapiro

v3

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[no name] 26-Aug-14 10:55am

C != .NET && C != C#. It not called a "conversion" it's called a rewrite.

elmutasim23 26-Aug-14 10:58am

this code is been written in reactos and i don't know what this code mean

2 solutions

Solution 1

The loop just checks the three conditions are all true:
1) c is not a null (the C language uses null terminated strings; C# doesn;t)
2) Whatever the _istspace function does, inverted. So if it returns "true" if the parameter is a space, then the loop wants it not a space.
3) The c character is not an equals sign.

The code in the loop itself looks like garbage.
Convert c to lower case, so 'A' becomes 'a' and so forth. But since c is a string, quite what it does to that is anybodies guess
Increment the string - and I have no idea what that will do...since you never use this as a pointer...

Quite where you got that (and why) I don't know.
But personally, I'd put it back and walk away pretending I'd never seen it...

Posted 26-Aug-14 5:08am

OriginalGriff

Comments

elmutasim23 26-Aug-14 16:27pm

i don't know what this code for but this code is in alias file in reactos cmd

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vikinghunter · Accepted Answer · 2014-08-26T16:22:00

The function converted should like this,maybe

C#

internal static void partstrlwr(ref string str)
{
    CharEnumerator c = str.GetEnumerator();

    str = string.Empty;

    while (c.MoveNext())
    {
        if (!c.Current.Equals(' ') && !c.Current.Equals('='))
        {
            str += c.Current.ToString().ToLower();
        }
        else
        {
            str += c.Current.ToString();
        }
    }
}

I think just use "String.ToLower()" instead of the "partstrlwr",since no difference here beween this two in C#.