test/io.cpp

// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2019 Joel Holdsworth <joel.holdsworth@vcatechnology.com>
//
// This Source Code Form is subject to the terms of the Mozilla
// Public License v. 2.0. If a copy of the MPL was not distributed
// with this file, You can obtain one at http://mozilla.org/MPL/2.0/.

#include <sstream>

#include "main.h"

template <typename Scalar>
struct check_ostream_impl {
  static void run() {
    const Array<Scalar, 1, 1> array(123);
    std::ostringstream ss;
    ss << array;
    VERIFY(ss.str() == "123");

    check_ostream_impl<std::complex<Scalar> >::run();
  };
};

template <>
struct check_ostream_impl<bool> {
  static void run() {
    const Array<bool, 1, 2> array(1, 0);
    std::ostringstream ss;
    ss << array;
    VERIFY(ss.str() == "1  0");
  };
};

template <typename Scalar>
struct check_ostream_impl<std::complex<Scalar> > {
  static void run() {
    const Array<std::complex<Scalar>, 1, 1> array(std::complex<Scalar>(12, 34));
    std::ostringstream ss;
    ss << array;
    VERIFY(ss.str() == "(12,34)");
  };
};

template <typename Scalar>
static void check_ostream() {
  check_ostream_impl<Scalar>::run();
}

EIGEN_DECLARE_TEST(rand) {
  CALL_SUBTEST(check_ostream<bool>());
  CALL_SUBTEST(check_ostream<float>());
  CALL_SUBTEST(check_ostream<double>());
  CALL_SUBTEST(check_ostream<Eigen::numext::int8_t>());
  CALL_SUBTEST(check_ostream<Eigen::numext::uint8_t>());
  CALL_SUBTEST(check_ostream<Eigen::numext::int16_t>());
  CALL_SUBTEST(check_ostream<Eigen::numext::uint16_t>());
  CALL_SUBTEST(check_ostream<Eigen::numext::int32_t>());
  CALL_SUBTEST(check_ostream<Eigen::numext::uint32_t>());
  CALL_SUBTEST(check_ostream<Eigen::numext::int64_t>());
  CALL_SUBTEST(check_ostream<Eigen::numext::uint64_t>());
}