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#pragma once
#include <string>
#include <utility>
#include "cgraph.h"
#ifdef GVDLL
#if cgraph___EXPORTS // CMake's substitution of cgraph++_EXPORTS
#define AGRAPH_API __declspec(dllexport)
#else
#define AGRAPH_API __declspec(dllimport)
#endif
#endif
#ifndef AGRAPH_API
#define AGRAPH_API /* nothing */
#endif
namespace CGraph {
/**
* @brief The AGraph class represents an abstract graph
*/
class AGRAPH_API AGraph {
public:
explicit AGraph(const std::string &dot);
~AGraph();
// delete copy since we manage a C struct using a raw pointer and the struct
// cannot be easily copied since it contains even more raw pointers
AGraph(const AGraph &) = delete;
AGraph &operator=(const AGraph &) = delete;
// implement move since we manage a C struct using a raw pointer
AGraph(AGraph &&other) noexcept : m_g(std::exchange(other.m_g, nullptr)) {}
AGraph &operator=(AGraph &&other) noexcept {
using std::swap;
swap(m_g, other.m_g);
return *this;
}
// get a non-owning pointer to the underlying C data structure
Agraph_t *c_struct() const { return m_g; }
private:
// the underlying C data structure
Agraph_t *m_g = nullptr;
};
} // namespace CGraph
#undef AGRAPH_API
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