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SupportedConeT.h
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SupportedConeT.h
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#pragma once
#include <cstdint>
#include <stdexcept>
#include <type_traits>
namespace clarabel
{
// Provides the layout for SupportedConeT objects in Rust
// Base type of all cones
template<typename T = double>
struct SupportedConeT
{
static_assert(std::is_same<T, float>::value || std::is_same<T, double>::value, "T must be float or double");
public:
// Tag for the type of the cone
enum class Tag
{
ZeroConeT,
NonnegativeConeT,
SecondOrderConeT,
ExponentialConeT,
PowerConeT,
#ifdef FEATURE_SDP
PSDTriangleConeT,
#endif
};
Tag tag;
protected:
struct ZeroConeT_Body
{
uintptr_t _0;
};
struct NonnegativeConeT_Body
{
uintptr_t _0;
};
struct SecondOrderConeT_Body
{
uintptr_t _0;
};
struct ExponentialConeT_Body
{
};
struct PowerConeT_Body
{
T _0;
};
#ifdef FEATURE_SDP
struct PSDTriangleConeT_Body
{
uintptr_t _0;
};
#endif
// Data
union
{
ZeroConeT_Body zero_cone_t;
NonnegativeConeT_Body nonnegative_cone_t;
SecondOrderConeT_Body second_order_cone_t;
ExponentialConeT_Body exponential_cone_t;
PowerConeT_Body power_cone_t;
#ifdef FEATURE_SDP
PSDTriangleConeT_Body psd_triangle_cone_t;
#endif
};
public:
unsigned int nvars() const
{
switch (this->tag)
{
case Tag::ZeroConeT:
return this->zero_cone_t._0;
case Tag::NonnegativeConeT:
return this->nonnegative_cone_t._0;
case Tag::SecondOrderConeT:
return this->second_order_cone_t._0;
case Tag::ExponentialConeT:
return 3;
case Tag::PowerConeT:
return 3;
#ifdef FEATURE_SDP
case Tag::PSDTriangleConeT: {
unsigned int k = this->psd_triangle_cone_t._0;
return (k * (k + 1)) >> 1;
}
#endif
default:
throw std::invalid_argument("Invalid cone type");
}
}
};
template<typename T = double>
struct ZeroConeT : public SupportedConeT<T>
{
public:
ZeroConeT(uintptr_t dimension)
{
this->tag = SupportedConeT<T>::Tag::ZeroConeT;
this->nonnegative_cone_t = { dimension };
}
uintptr_t dimension() const { return this->nonnegative_cone_t._0; }
};
template<typename T = double>
struct NonnegativeConeT : public SupportedConeT<T>
{
public:
NonnegativeConeT(uintptr_t dimension)
{
this->tag = SupportedConeT<T>::Tag::NonnegativeConeT;
this->zero_cone_t = { dimension };
}
uintptr_t dimension() const { return this->zero_cone_t._0; }
};
template<typename T = double>
struct SecondOrderConeT : public SupportedConeT<T>
{
public:
SecondOrderConeT(uintptr_t dimension)
{
this->tag = SupportedConeT<T>::Tag::SecondOrderConeT;
this->second_order_cone_t = { dimension };
}
T dimension() const { return this->second_order_cone_t._0; }
};
template<typename T = double>
struct ExponentialConeT : public SupportedConeT<T>
{
public:
ExponentialConeT() { this->tag = SupportedConeT<T>::Tag::ExponentialConeT; }
};
template<typename T = double>
struct PowerConeT : public SupportedConeT<T>
{
public:
PowerConeT(T power)
{
this->tag = SupportedConeT<T>::Tag::PowerConeT;
this->power_cone_t = { power };
}
T power() const { return this->power_cone_t._0; }
};
#ifdef FEATURE_SDP
template<typename T = double>
struct PSDTriangleConeT : public SupportedConeT<T>
{
public:
PSDTriangleConeT(uintptr_t dimension)
{
this->tag = SupportedConeT<T>::Tag::PSDTriangleConeT;
this->psd_triangle_cone_t = { dimension };
}
T dimension() const { return this->psd_triangle_cone_t._0; }
};
#endif
} // namespace clarabel