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33f4c92b61
- Refactor Number internals away from int64 to uint64 & a sign flag
- ctors and accessors use `rep`. Very few things expose
`internalrep`.
- An exception is "unchecked" and the new "normalized", which explicitly
take an internalrep. But with those special control flags, it's easier
to distinguish and control when they are used.
- For now, skip the larger mantissas in AMM transactions and tests
- Remove trailing zeros from scientific notation Number strings
- Update tests. This has the happy side effect of making some of the string
representations _more_ consistent between the small and large
mantissa ranges.
- Add semi-automatic rounding of STNumbers based on Asset types
- Create a new SField metadata enum, sMD_NeedsAsset, which indicates
the field should be associated with an Asset so it can be rounded.
- Add a new STTakesAsset intermediate class to handle the Asset
association to a derived ST class. Currently only used in STNumber,
but could be used by other types in the future.
- Add "associateAsset" which takes an SLE and an Asset, finds the
sMD_NeedsAsset fields, and associates the Asset to them. In the case
of STNumber, that both stores the Asset, and rounds the value
immediately.
- Transactors only need to add a call to associateAsset _after_ all of
the STNumbers have been set. Unfortunately, the inner workings of
STObject do not do the association correctly with uninitialized
fields.
- When serializing an STNumber that has an Asset, round it before
serializing.
- Add an override of roundToAsset, which rounds a Number value in place
to an Asset, but without any additional scale.
- Update and fix a bunch of Loan-related tests to accommodate the
expanded Number class.
---------
Co-authored-by: Vito <5780819+Tapanito@users.noreply.github.com>
71 lines
1.9 KiB
C++
71 lines
1.9 KiB
C++
#ifndef XRPL_PROTOCOL_SYSTEMPARAMETERS_H_INCLUDED
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#define XRPL_PROTOCOL_SYSTEMPARAMETERS_H_INCLUDED
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#include <xrpl/basics/chrono.h>
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#include <xrpl/protocol/XRPAmount.h>
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#include <cstdint>
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#include <string>
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namespace xrpl {
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// Various protocol and system specific constant globals.
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/* The name of the system. */
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static inline std::string const&
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systemName()
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{
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static std::string const name = "ripple";
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return name;
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}
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/** Configure the native currency. */
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/** Number of drops in the genesis account. */
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constexpr XRPAmount INITIAL_XRP{100'000'000'000 * DROPS_PER_XRP};
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static_assert(INITIAL_XRP.drops() == 100'000'000'000'000'000);
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static_assert(Number::maxRep >= INITIAL_XRP.drops());
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/** Returns true if the amount does not exceed the initial XRP in existence. */
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inline bool
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isLegalAmount(XRPAmount const& amount)
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{
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return amount <= INITIAL_XRP;
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}
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/** Returns true if the absolute value of the amount does not exceed the initial
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* XRP in existence. */
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inline bool
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isLegalAmountSigned(XRPAmount const& amount)
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{
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return amount >= -INITIAL_XRP && amount <= INITIAL_XRP;
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}
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/* The currency code for the native currency. */
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static inline std::string const&
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systemCurrencyCode()
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{
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static std::string const code = "XRP";
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return code;
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}
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/** The XRP ledger network's earliest allowed sequence */
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static constexpr std::uint32_t XRP_LEDGER_EARLIEST_SEQ{32570u};
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/** The XRP Ledger mainnet's earliest ledger with a FeeSettings object. Only
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* used in asserts and tests. */
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static constexpr std::uint32_t XRP_LEDGER_EARLIEST_FEES{562177u};
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/** The minimum amount of support an amendment should have. */
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constexpr std::ratio<80, 100> amendmentMajorityCalcThreshold;
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/** The minimum amount of time an amendment must hold a majority */
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constexpr std::chrono::seconds const defaultAmendmentMajorityTime = weeks{2};
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} // namespace xrpl
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/** Default peer port (IANA registered) */
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inline std::uint16_t constexpr DEFAULT_PEER_PORT{2459};
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#endif
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