removing spaces from a string

hey everyone i have a fairly straightforward problem that i cant seem to find an easy answer to. I want to remove the spaces from the beginning of a string. I was wondering if there is a build in function for this that i could take advantage of. I know its not hard, i just dont want to reinvent the wheel. I have the librarys included so i may as well make use of them.

Code:

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 string = "        hello";

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i just want the output to be hello without the leading spaces.



thanks in advance,
Brad.

>I want to remove the spaces from the beginning of a string.
I don't know if this is the easiest way, but try this.

Code:

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  string = string.substr(string.find_first_not_of(' '));

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Well, you could try using remove_if, but writing the predicate for it will be just as much work as just removing the spaces manually (maybe more).

EDIT 2: Swoopy's Idea can be simplified even more

Code:

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a_string.erase(0,a_string.find_first_not_of(' '));

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>Swoopy's Idea can be simplified even more
Darryl, and your code is also more readable. The erase() makes it obvious what's happening. :)

you could use string stream;

[URL=http://www.cplusplus.com/ref/iostream/stringstream/stringstream.html[/URL]

Code:

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#include <iostream>
#include <string>
#include <sstream>

using namespace std;

int main()
{
        string mystring = ("          Hel lo            ");
        string mystring2;
        stringstream ss(stringstream::in | stringstream::out);
        ss << mystring;
        while(ss >> mystring2)
        {
                cout << mystring2 << endl;
        }
        cin.get();
        return 0;
}

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