41 lines
1.2 KiB
C++
41 lines
1.2 KiB
C++
/** @file Float.hpp
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*
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* author: Roland Conybeare, Nov 2025
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**/
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#pragma once
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#include "Number.hpp"
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namespace xo {
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namespace obj {
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class Float : public Number {
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public:
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using IAlloc = xo::gc::IAlloc;
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using float_type = double;
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public:
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Float() = default;
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explicit Float(float_type x);
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/** create instance holding floating-point value @p x **/
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static gp<Float> make(IAlloc * mm, float_type x);
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/** downcast from @p x iff x is actually a Float. Otherwise nullptr **/
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static gp<Float> from(gp<Object> x);
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float_type value() const { return value_; }
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// inherited from Object..
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virtual TaggedPtr self_tp() const final override;
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virtual void display(std::ostream & os) const final override;
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virtual std::size_t _shallow_size() const final override;
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virtual Object * _shallow_copy(gc::IAlloc * gc) const final override;
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virtual std::size_t _forward_children(gc::GC * gc) final override;
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private:
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float_type value_ = 0.0;
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};
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}
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}
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/* end Float.hpp */
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