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FBwlex_cast.h

Go to the documentation of this file.

#ifndef FBwlex_castHH
#define FBwlex_castHH   1

#include <FBwConfig.h>
#include <sstream>
#include <typeinfo>

namespace fbwrap
{

class bad_lexical_cast : public std::bad_cast
{
public:
// constructors, destructors, and assignment operator defaulted
// function inlined for brevity and consistency with rest of library
    virtual const char * what() const throw()
    {
        return "bad lexical cast: "
                    "source type value could not be interpreted as target";
    }
};
template <typename Target, typename Source>
Target lexical_cast(const Source arg)
{
    std::stringstream interp;
    Target result;
    if(!(interp << arg) || !(interp >> result) )
        throw bad_lexical_cast();
    return result;
}

// ----------------------------------------------------------------------------
// namespace end

}
#endif 

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