/*

* Copyright (C) 2020-2026 MEmilio

*

* Authors: Daniel Abele

*

* Contact: Martin J. Kuehn <[email protected]>

*

* Licensed under the Apache License, Version 2.0 (the "License");

* you may not use this file except in compliance with the License.

* You may obtain a copy of the License at

*

* http://www.apache.org/licenses/LICENSE-2.0

*

* Unless required by applicable law or agreed to in writing, software

* distributed under the License is distributed on an "AS IS" BASIS,

* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

* See the License for the specific language governing permissions and

* limitations under the License.

*/

#include "test_data_dir.h"

#include "memilio/utils/stl_util.h"

#include <string>

#include <cstring>

#include <vector>

#include <fstream>

template <class String>

std::string get_test_data_file_path(String&& filename)

{

return mio::path_join(TEST_DATA_DIR, filename);

}

/**

* @brief read table of space separated numerical values from a file

*/

template <class Real>

std::vector<std::vector<Real>> load_test_data_csv(const std::string& filename)

{

// File pointer

std::fstream fin;

// Open an existing file

fin.open(get_test_data_file_path(filename), std::ios::in);

// Read the Data from the file

std::vector<std::vector<Real>> data;

std::vector<Real> row;

std::string line, word;

while (getline(fin, line)) {

row.clear();

// ignore comments

if (line[0] == '#') {

continue;

}

//read columns in this row

std::stringstream s(line);

double v;

while (s >> v) {

row.push_back(v);

}

//append non empty rows

if (row.size() > 0) {

data.push_back(row);

}

}

return data;

}