library/cpp/yson_pull/detail/percent_scalar.h


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#pragma once 
 
#include <util/generic/strbuf.h> 
 
namespace NYsonPull::NDetail { 
    enum class percent_scalar_type { 
        boolean, 
        float64 
    }; 
 
    struct percent_scalar { 
        //! Text boolean literals 
        static constexpr TStringBuf true_literal = "%true";
        static constexpr TStringBuf false_literal = "%false";
        //! Text floating-point literals 
        static constexpr TStringBuf nan_literal = "%nan";
        static constexpr TStringBuf positive_inf_literal = "%inf";
        static constexpr TStringBuf negative_inf_literal = "%-inf";
 
        percent_scalar_type type; 
        union { 
            double as_float64; 
            bool as_boolean; 
        } value; 
 
        percent_scalar(double v) { 
            type = percent_scalar_type::float64; 
            value.as_float64 = v; 
        } 
 
        percent_scalar(bool v) { 
            type = percent_scalar_type::boolean; 
            value.as_boolean = v; 
        } 
    }; 
}