From:	"John Harrison" <jahhaj AT dtn DOT ntl DOT com>
Newsgroups:	comp.os.msdos.djgpp,comp.lang.c++
References:	<3952E8D5 DOT 4A5F0B58 AT hotmail DOT com>
Subject:	Re: more problems with string class
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Date:	Fri, 23 Jun 2000 06:35:07 +0100
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To:	djgpp AT delorie DOT com
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"Heavy" <heavier AT hotmail DOT com> wrote in message
news:3952E8D5 DOT 4A5F0B58 AT hotmail DOT com...
> Hi, I'm having more problems with the string class. I am using <string>,
> but am finding that the class string has very little useful
> functionality. I'm wondering if I'm missing something, or if I'm
> supposed to create a subclass of string to add methods to acquire
> substrings of the main string (i.e. a before(pos) method to return a
> string containing the left part of a string).
>

before(pos) == substr(0, pos)

If you're desperate to use before then try writing an inline function

inline std::string before(const std::string& str, std::string::size_type
pos) { return str.substr(0, pos); }

This is a better approach than deriving from string since string was not
designed to be derived from (it doesn't have a virtual destructor for
instance).

I'd be interested to know what other methods you think string is missing.

john

> I must be missing something, because I can't see creating a subclass of
> string every time you need a little less generic functionality.
>
> Any information you could provide for me would be useful, thanks
>
> Heavy
> heavier AT hotmail DOT com

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