Quick and dirty string scan to float

[Flector]

No point in re-inventing the wheel.

Given "1.234" as a string, how do you get a float?

[Skizmo]

atof ?

[Flector]

Thanks, that led in the right direction, needed _wtof.

[Marc G]

Or the C++0x stof().

[Lindley]

Or the C++0x stof().

Is there documentation on this somewhere? First I've heard of it.

[S_M_A]

http://msdn.microsoft.com/en-us/library/ee404878.aspx

[Marc G]

Is there documentation on this somewhere? First I've heard of it.

It's in the draft standard document which you can freely download. (http://www.open-std.org/JTC1/SC22/WG21/docs/papers/) Here is a quote:

// 21.5: numeric conversions
int stoi(const string& str, size_t *idx = 0, int base = 10);
long stol(const string& str, size_t *idx = 0, int base = 10);
unsigned long stoul(const string& str, size_t *idx = 0, int base = 10);
long long stoll(const string& str, size_t *idx = 0, int base = 10);
unsigned long long stoull(const string& str, size_t *idx = 0, int base = 10);
float stof(const string& str, size_t *idx = 0);
double stod(const string& str, size_t *idx = 0);
long double stold(const string& str, size_t *idx = 0);
string to_string(int val);
string to_string(unsigned val);
string to_string(long val);
string to_string(unsigned long val);
string to_string(long long val);
string to_string(unsigned long long val);
string to_string(float val);
string to_string(double val);
string to_string(long double val);

+ wide versions of all the above.