netbeans: 'max' was not declared in this scope

Sorry if my question is very rudimentary.

I have a simple class defined as:

 #ifndef PAYOFF1_H #define PAYOFF1_H class PayOff { public: enum OptionType {call,put}; PayOff(double Strike_,OptionType TheOptionType_); double operator()(double Spot) const; private: double Strike; OptionType TheOptionType; }; 

and the source file is:

#include "PayOff1.h" #include "minmax.h" PayOff::PayOff(double Strike_, OptionType TheOptionType_) : Strike(Strike_),TheOptionType(TheOptionType_) { } double PayOff::operator ()(double spot) const { switch(TheOptionType) { case call: return max((spot - Strike) , 0); case put: return max((Strike-spot) , 0); default: throw("unknown option found."); } } 

I get the error 'max' was not declared in this scope.

Thank you for your help in advance.

Regards,

2 Answers

I think you should specify the namespace you are using, like this:

std::max 

or

using namespace std; 

So, in the first case that part of code should look like this:

... case call: return std::max((spot - Strike) , 0); case put: return std::max((Strike-spot) , 0); ... 

In the second case:

#include "PayOff1.h" #include "minmax.h" using namespace std; ... 

Don't forget about namespace, it is important.

Problem solved! Replacing "minmax.h" with "algorithm" and using std::max. Thanks,