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d7e949193f
* Copy Antithesis SDK version 0.4.0 to directory external/ * Add build option `voidstar` to enable instrumentation with Antithesis SDK * Define instrumentation macros ASSERT and UNREACHABLE in terms of regular C assert * Replace asserts with named ASSERT or UNREACHABLE * Add UNREACHABLE to LogicError * Document instrumentation macros in CONTRIBUTING.md
106 lines
2.7 KiB
C++
106 lines
2.7 KiB
C++
//------------------------------------------------------------------------------
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/*
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This file is part of rippled: https://github.com/ripple/rippled
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Copyright (c) 2015 Ripple Labs Inc.
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Permission to use, copy, modify, and/or distribute this software for any
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purpose with or without fee is hereby granted, provided that the above
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copyright notice and this permission notice appear in all copies.
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THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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ANY SPECIAL , DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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//==============================================================================
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#ifndef RIPPLE_PROTOCOL_RATE_H_INCLUDED
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#define RIPPLE_PROTOCOL_RATE_H_INCLUDED
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#include <xrpl/beast/utility/instrumentation.h>
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#include <xrpl/protocol/STAmount.h>
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#include <boost/operators.hpp>
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#include <cstdint>
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#include <ostream>
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namespace ripple {
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/** Represents a transfer rate
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Transfer rates are specified as fractions of 1 billion.
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For example, a transfer rate of 1% is represented as
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1,010,000,000.
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*/
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struct Rate : private boost::totally_ordered<Rate>
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{
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std::uint32_t value;
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Rate() = delete;
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explicit Rate(std::uint32_t rate) : value(rate)
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{
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}
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};
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inline bool
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operator==(Rate const& lhs, Rate const& rhs) noexcept
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{
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return lhs.value == rhs.value;
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}
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inline bool
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operator<(Rate const& lhs, Rate const& rhs) noexcept
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{
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return lhs.value < rhs.value;
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}
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inline std::ostream&
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operator<<(std::ostream& os, Rate const& rate)
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{
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os << rate.value;
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return os;
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}
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STAmount
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multiply(STAmount const& amount, Rate const& rate);
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STAmount
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multiplyRound(STAmount const& amount, Rate const& rate, bool roundUp);
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STAmount
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multiplyRound(
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STAmount const& amount,
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Rate const& rate,
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Asset const& asset,
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bool roundUp);
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STAmount
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divide(STAmount const& amount, Rate const& rate);
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STAmount
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divideRound(STAmount const& amount, Rate const& rate, bool roundUp);
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STAmount
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divideRound(
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STAmount const& amount,
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Rate const& rate,
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Asset const& asset,
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bool roundUp);
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namespace nft {
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/** Given a transfer fee (in basis points) convert it to a transfer rate. */
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Rate
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transferFeeAsRate(std::uint16_t fee);
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} // namespace nft
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/** A transfer rate signifying a 1:1 exchange */
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extern Rate const parityRate;
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} // namespace ripple
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#endif
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