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