fmt-eigen.hpp

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#pragma once
 
#include "math.hpp"
 
#include <fmt/core.h>
#include <fmt/ostream.h>
#include <fmt/ranges.h>

 
// ostream_formatter has been introduced in FMT 9
#if FMT_VERSION >= 90000
template <typename MatrixType>
struct fmt::formatter<MatrixType,
                      ::aligator::enable_if_eigen_dense_t<MatrixType, char>>
    : fmt::ostream_formatter {};
 
template <typename MatrixType>
struct fmt::is_range<MatrixType,
                     ::aligator::enable_if_eigen_dense_t<MatrixType, char>>
    : std::false_type {};
 
template <typename MatrixType>
struct fmt::formatter<Eigen::WithFormat<MatrixType>>
    : public fmt::ostream_formatter {};
#else
template <typename MatrixType>
struct fmt::formatter<MatrixType,
                      ::aligator::enable_if_eigen_dense_t<MatrixType, char>>
    : fmt::formatter<std::ostream, char> {};
 
template <typename MatrixType>
struct fmt::is_range<MatrixType,
                     ::aligator::enable_if_eigen_dense_t<MatrixType, char>>
    : std::false_type {};
 
template <typename MatrixType>
struct fmt::formatter<Eigen::WithFormat<MatrixType>>
    : public fmt::formatter<std::ostream, char> {};
#endif // if FMT_VERSION >= 90000