TimeScale.h

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#ifndef TIMESCALE_H_
#define TIMESCALE_H_

#include <iostream>


// creates strange error of compiler 4.8, but still compiles !
// add CXXFLAGS=-std=c++11, now no error on compilation. But works without include ! by default ??
// now ok for C++, but rootcint problem, need to update later (v6 ?)
#ifndef __MAKECINT__
#include <type_traits>
#include <cstdint>
#endif

// Overhead in including ETime in namespace, works fine,
// but need TimeScale::ETime::DAY ...or using namespace TimeScale all the time
// It is used very often !
// namespace TimeScale
// Contains an enumeration class ETime (C++11), and convenient functions
//
//namespace TimeScale {


// use C++11 enum class, can fix format to unsigned int 8, but bad output on screen !
//enum class ETime : std::uint8_t { dcsv, M5, M10, M30, H1, DAY, WEEK, MONTH, TRIM, YEAR, not_a_time };

// force first to 0, but does not seem necessary
#ifdef __MAKECINT__
        // with traditional enum can compile in namespace also
        typedef enum { INST=0, M5, M10, M30, H1, DAY, WEEK, MONTH, TRIM, YEAR, not_a_time } ETime;
#else
        // use C++11 enum class, can fix format to unsigned int 8, but bad output on screen with operator << !
        //enum class ETime : std::uint8_t { INST, M5, M10, M30, H1, DAY, WEEK, MONTH, TRIM, YEAR, not_a_time };
        enum class ETime : unsigned int { INST=0, M5, M10, M30, H1, DAY, WEEK, MONTH, TRIM, YEAR, not_a_time };
#endif

namespace TimeScale {
// need to be in header
// to check if sometimes not needed and implicit
template <typename ETime>
auto as_uint(ETime const value)
//    -> typename std::underlying_type<ETime>::type
      -> unsigned int
{
    //return static_cast<typename std::underlying_type<ETime>::type>(value);
    return static_cast<unsigned int>(value);
}

std::ostream& operator << (std::ostream& os, const ETime& obj);
std::string GetTimeScaleName ( const ETime& tmscl );
ETime GetTimeScaleFromName ( const std::string& tmscl_str );
// need GetTimeScaleFromInt, or inverse as_int

}

#endif /* TIMESCALE_H_ */