How to convert from const char* to unsigned int c++

Question

I am new in c++ programming and I have been trying to convert from const char* to unsigned int with no luck. I have a:

const char* charVar;

and i need to convert it to:

unsigned int uintVar;

How can it be done in C++?

Thanks

Answer 1

#include <iostream>
#include <sstream>

const char* value = "1234567";
stringstream strValue;
strValue << value;

unsigned int intValue;
strValue >> intValue;

cout << value << endl;
cout << intValue << endl;

Output:

1234567

1234567

Answer 2

What do you mean by convert?

If you are talking about reading an integer from the text, then you have several options.

Boost lexical cast: http://www.boost.org/doc/libs/1_44_0/libs/conversion/lexical_cast.htm

String stream:

const char* x = "10";
int y;
stringstream s(x);
s >> y;

Or good old C functions atoi() and strtol()