mirror of
https://github.com/XRPLF/rippled.git
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0175dd70db
- Change the Number::maxIntValue to all 9's. - Add integral() to Asset (copied from Lending) - Add toNumber() functions to STAmount, MPTAmount, XRPAmount to allow explicit conversions with enforcement options. - Add optional Number::EnforceInteger options to STAmount and STNumber ctors, conversions, etc. IOUs are never checked. - Update Vault transactors, and helper functions, to check restrictions. - Fix and add Vault tests.
102 lines
2.2 KiB
C++
102 lines
2.2 KiB
C++
#ifndef XRPL_PROTOCOL_STNUMBER_H_INCLUDED
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#define XRPL_PROTOCOL_STNUMBER_H_INCLUDED
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#include <xrpl/basics/CountedObject.h>
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#include <xrpl/basics/Number.h>
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#include <xrpl/protocol/STBase.h>
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#include <ostream>
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namespace ripple {
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/**
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* A serializable number.
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*
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* This type is-a `Number`, and can be used everywhere that is accepted.
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* This type simply integrates `Number` with the serialization framework,
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* letting it be used for fields in ledger entries and transactions.
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* It is effectively an `STAmount` sans `Asset`:
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* it can represent a value of any token type (XRP, IOU, or MPT)
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* without paying the storage cost of duplicating asset information
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* that may be deduced from the context.
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*/
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class STNumber : public STBase, public CountedObject<STNumber>
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{
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private:
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Number value_;
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public:
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using value_type = Number;
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STNumber() = default;
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explicit STNumber(SField const& field, Number const& value = Number());
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STNumber(SerialIter& sit, SField const& field);
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SerializedTypeID
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getSType() const override;
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std::string
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getText() const override;
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void
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add(Serializer& s) const override;
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Number const&
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value() const;
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void
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setValue(Number const& v);
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STNumber&
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operator=(Number const& rhs)
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{
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setValue(rhs);
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return *this;
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}
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bool
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isEquivalent(STBase const& t) const override;
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bool
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isDefault() const override;
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/// Sets the flag on the underlying number
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void
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setIntegerEnforcement(Number::EnforceInteger enforce);
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/// Gets the flag value on the underlying number
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Number::EnforceInteger
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integerEnforcement() const noexcept;
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/// Checks the underlying number
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bool
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valid() const noexcept;
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operator Number() const
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{
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return value_;
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}
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private:
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STBase*
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copy(std::size_t n, void* buf) const override;
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STBase*
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move(std::size_t n, void* buf) override;
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};
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std::ostream&
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operator<<(std::ostream& out, STNumber const& rhs);
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struct NumberParts
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{
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std::uint64_t mantissa = 0;
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int exponent = 0;
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bool negative = false;
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};
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NumberParts
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partsFromString(std::string const& number);
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STNumber
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numberFromJson(SField const& field, Json::Value const& value);
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} // namespace ripple
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#endif
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