src/rcrt/loaders/conversion.hpp

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#ifndef CONVERSION_HPP_
#define CONVERSION_HPP_


#include <iostream>
#include <sstream>
#include <string>
#include <typeinfo>
#include <stdexcept>

namespace rcrt
{
 
class BadConversion : public std::runtime_error
{
public:
        BadConversion(const std::string& s) : std::runtime_error(s)
     { }
};
 
template<typename T>
inline std::string toString(const T& x)
{
        std::ostringstream o;
        if (!(o << x))
                throw BadConversion(std::string("toString(")
                         + typeid(x).name() + ")");
        return o.str();
}

template<typename T>
inline void convert(const std::string& s, T& x,
                     bool failIfLeftoverChars = true)
{
        std::istringstream i(s);
        char c;
        if (!(i >> x) || (failIfLeftoverChars && i.get(c)))
                throw BadConversion(std::string("convert(")+s+std::string(", ")+
                                typeid(x).name()+std::string(")"));
}

template<typename T> inline T convertTo(const std::string& s,
                bool failIfLeftoverChars = true) {
        T x;
        convert(s, x, failIfLeftoverChars);
        return x;
}

}

#endif /*CONVERSION_HPP_*/

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