utils.hxx

#pragma once
 
// C++
#include <sstream>
#include <string>
 
// cosmos
#include <cosmos/formatting.hxx>
 
namespace clues {
 
inline std::string strip_back(std::string &&s, const char ch = '|') {
        if (s.back() == ch)
                s.pop_back();
        return s;
}

#define BITFLAGS_FORMAT_START(bitmask) std::stringstream _bf_ss; auto _flags = bitmask.raw(); \
                _bf_ss << cosmos::HexNum<decltype(bitmask)::EnumBaseType>{_flags, 0} << " ("

#define BITFLAGS_FORMAT_START_COMBINED(bitmask, raw_val) std::stringstream _bf_ss; \
                auto _flags = bitmask.raw(); \
                _bf_ss << cosmos::HexNum<decltype(raw_val)>{raw_val, 0} << " ("
#define BITFLAGS_STREAM() _bf_ss
#define BITFLAGS_ADD(FLAG) if (FLAG && (_flags & FLAG) == FLAG) _bf_ss << #FLAG << '|'
#define BITFLAGS_STR() strip_back(_bf_ss.str()) + ")"
 
} // end ns