Concerning string.cstr()

[Michael Lawson]

I may be a bit ignorant, or I haven't searched hard enough,
but how exactly is one to grab the finger character of a
string variable? The only way I know how to at the moment
looks a bit ugly, ie: string.cstr()[0]; Is there another
way I can do this? I figure if it *looks* ugly, then there
probably is a better way. And as a result, I've a tendency
to use C-style strings in C++ because I can't find a better
way of doing this, or scanning each individual letter of a
string in some occasions.

Thanks much,
Michael

[Gianni Mariani]

Re: Concerning string.cstr()

Michael Lawson wrote:[color=blue]
> I may be a bit ignorant, or I haven't searched hard enough,
> but how exactly is one to grab the finger character of a
> string variable? The only way I know how to at the moment
> looks a bit ugly, ie: string.cstr()[0]; Is there another
> way I can do this? I figure if it *looks* ugly, then there
> probably is a better way. And as a result, I've a tendency
> to use C-style strings in C++ because I can't find a better
> way of doing this, or scanning each individual letter of a
> string in some occasions.[/color]




#include <iostream>

int main()
{

std::string str = "ABCD\n";

str[0] = 'X';

std::cout << str;
}

[Michael Lawson]

Re: Concerning string.cstr()


"Gianni Mariani" <gi2nospam@mari ani.ws> wrote in message
news:bnkqro$m9p @dispatch.conce ntric.net...[color=blue]
> Michael Lawson wrote:[/color]
<snip>[color=blue]
>
>
> #include <iostream>
>
> int main()
> {
>
> std::string str = "ABCD\n";
>
> str[0] = 'X';
>
> std::cout << str;
> }
>[/color]

Yep. I'm ignorant. Thanks much.

...damn assumptions
-Michael

[Pierre]

Re: Concerning string.cstr()

> I may be a bit ignorant, or I haven't searched hard enough,[color=blue]
> but how exactly is one to grab the finger character of a
> string variable? The only way I know how to at the moment
> looks a bit ugly, ie: string.cstr()[0];[/color]

you can use the at(position) function

for(std::string ::size_type i=0;i<s.size(); ++i)
{
cout << s.at(i);
}

or you can use the [] operator

for(std::string ::size_type i=0;i<s.size(); ++i)
{
cout << s[i];
}

or you can use the std::string::it erator

for(std::string ::iterator i=s.begin();i!= s.end();++i)
{
cout << (*i);
}

[color=blue]
> Is there another
> way I can do this? I figure if it *looks* ugly, then there
> probably is a better way.[/color]

you should have a look at a C++ documentation about the standard
template library (STL).
[color=blue]
> And as a result, I've a tendency
> to use C-style strings in C++ because I can't find a better
> way of doing this, or scanning each individual letter of a
> string in some occasions.[/color]

I did the same when I was learning C++. The more you learn STL and
understand how it works, the less you will use some features of C
(stdio, callback, malloc/realloc... etc...)

Pierre