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ArrayPrint.hpp
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74 lines (66 loc) · 2.63 KB
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/*
* Copyright (C) 2017-2020 Trent Houliston <trent@houliston.me>
*
* Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated
* documentation files (the "Software"), to deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
* WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
* COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
* OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef ARRAY_PRINT_HPP
#define ARRAY_PRINT_HPP
#include <array>
#include <iostream>
template <typename T>
struct Printer;
// Prints matrices
template <typename Scalar, std::size_t n, std::size_t m>
struct Printer<std::array<std::array<Scalar, n>, m>> {
static inline void print(std::ostream& out, const std::array<std::array<Scalar, n>, m>& s) {
for (std::size_t j = 0; j < m; ++j) {
out << "[";
for (std::size_t i = 0; i < n - 1; ++i) {
out << s[j][i] << ", ";
}
if (n > 0) { out << s[j][n - 1]; }
out << "]";
if (j < m - 1) { out << std::endl; }
}
}
};
// Prints vectors
template <typename Scalar, std::size_t n>
struct Printer<std::array<Scalar, n>> {
static inline void print(std::ostream& out, const std::array<Scalar, n>& s) {
out << "[";
for (std::size_t i = 0; i < n - 1; ++i) {
out << s[i] << ", ";
}
if (n > 0) { out << s[n - 1]; }
out << "]";
}
};
/**
* @brief Provides an operator that prints out a matrix or vector to a stream
*
* @tparam T the type of the data in the array
* @tparam n the size of the array
*
* @param out the stream to output the data to
* @param s the array to print
*
* @return std::ostream& the ostream out that was put in
*/
template <typename T, std::size_t n>
std::ostream& operator<<(std::ostream& out, const std::array<T, n>& s) {
Printer<std::array<T, n>>::print(out, s);
return out;
}
#endif // ARRAY_PRINT_HPP