version.hpp

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#ifndef GKO_CORE_BASE_VERSION_HPP_
#define GKO_CORE_BASE_VERSION_HPP_


#include <ginkgo/config.hpp>
#include <ginkgo/core/base/types.hpp>


#include <ostream>
#include <tuple>


namespace gko {


struct version {
    const uint64 major;

    const uint64 minor;

    const uint64 patch;

    const char *const tag;
};


#define GKO_ENABLE_VERSION_COMPARISON(_operator)                             \
    inline bool operator _operator(const version &first,                     \
                                   const version &second)                    \
    {                                                                        \
        return std::tie(first.major, first.minor, first.patch)               \
            _operator std::tie(second.major, second.minor, second.patch);    \
    }                                                                        \
    static_assert(true,                                                      \
                  "This assert is used to counter the false positive extra " \
                  "semi-colon warnings")

GKO_ENABLE_VERSION_COMPARISON(<);
GKO_ENABLE_VERSION_COMPARISON(<=);
GKO_ENABLE_VERSION_COMPARISON(==);
GKO_ENABLE_VERSION_COMPARISON(!=);
GKO_ENABLE_VERSION_COMPARISON(>=);
GKO_ENABLE_VERSION_COMPARISON(>);

#undef GKO_ENABLE_VERSION_COMPARISON


inline std::ostream &operator<<(std::ostream &os, const version &ver)
{
    os << ver.major << "." << ver.minor << "." << ver.patch;
    if (ver.tag) {
        os << " (" << ver.tag << ")";
    }
    return os;
}


class version_info {
public:
    static const version_info &get()
    {
        static version_info info{};
        return info;
    }

    version header_version;

    version core_version;

    version reference_version;

    version omp_version;

    version cuda_version;

private:
    static constexpr version get_header_version() noexcept
    {
        return {GKO_VERSION_MAJOR, GKO_VERSION_MINOR, GKO_VERSION_PATCH,
                GKO_VERSION_TAG};
    }

    static version get_core_version() noexcept;

    static version get_reference_version() noexcept;

    static version get_omp_version() noexcept;

    static version get_cuda_version() noexcept;

    version_info()
        : header_version{get_header_version()},
          core_version{get_core_version()},
          reference_version{get_reference_version()},
          omp_version{get_omp_version()},
          cuda_version{get_cuda_version()}
    {}
};


std::ostream &operator<<(std::ostream &os, const version_info &ver_info);


}  // namespace gko


#endif  // GKO_CORE_BASE_VERSION_HPP_