C++ converting string to a float

[thatos]

I have this line of code in my program

string line = "1";

I would like to convert line into a float, now I can't use

float i = atof(line)

because atof() takes in char * as its argument.
Does someone know how can I convert a string into a float or at least convert type string to char * then use atof().

[JosAH]

The string class has a c_str() function that can help you.

kind regards,

Jos

[MrPickle]

Using the [] operator or at() will also return a char.

eg;
string line = "1";
char c = line[0];

Or you can use boost's lexical cast. http://www.boost.org/doc/libs/1_39_0...m#lexical_cast

Or you can use a std::stringstre am

eg;
string line = "1";
stringstream ss(line);
float f = 0;
ss >> f;

Lots of choices (: