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// Copyright Vespa.ai. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#pragma once
#include <cstdint>
#include <vespa/vespalib/objects/nbostream.h>
namespace vespalib::eval {
/**
* Class holding an 8-bit integer which decays into float.
**/
class Int8Float {
private:
int8_t _bits;
public:
constexpr Int8Float(float value) noexcept : _bits(value) {}
Int8Float() noexcept = default;
~Int8Float() noexcept = default;
constexpr Int8Float(const Int8Float &other) noexcept = default;
constexpr Int8Float(Int8Float &&other) noexcept = default;
constexpr Int8Float& operator=(const Int8Float &other) noexcept = default;
constexpr Int8Float& operator=(Int8Float &&other) noexcept = default;
constexpr Int8Float& operator=(float value) noexcept {
_bits = value;
return *this;
}
constexpr operator float () const noexcept { return _bits; }
constexpr float to_float() const noexcept { return _bits; }
constexpr void assign(float value) noexcept { _bits = value; }
constexpr int8_t get_bits() const { return _bits; }
constexpr void assign_bits(int8_t value) noexcept { _bits = value; }
};
inline nbostream & operator << (nbostream &stream, Int8Float v) { return stream << v.get_bits(); }
inline nbostream & operator >> (nbostream &stream, Int8Float & v) {
int8_t byte;
stream >> byte;
v.assign_bits(byte);
return stream;
}
}
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