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// SPDX-FileCopyrightText: 2006-2025 Knut Reinert & Freie Universität Berlin
// SPDX-FileCopyrightText: 2016-2025 Knut Reinert & MPI für molekulare Genetik
// SPDX-License-Identifier: CC0-1.0
#include <seqan3/test/snippet/create_temporary_snippet_file.hpp>
seqan3::test::create_temporary_snippet_file my_fastq{"my.fastq",
R"////![fastq_file]"}; // std::filesystem::current_path() / "my.fastq" will be deleted after the execution
// std::filesystem::current_path() / "output.fastq" will be deleted after the execution
seqan3::test::create_temporary_snippet_file output{"output.fastq", ""};
//![solution]
#include <algorithm>
#include <filesystem>
#include <ranges>
#include <seqan3/io/sequence_file/all.hpp>
int main()
{
std::filesystem::path current_path = std::filesystem::current_path();
seqan3::sequence_file_input fin{current_path / "my.fastq"};
seqan3::sequence_file_output fout{current_path / "output.fastq"};
auto length_filter = std::views::filter(
[](auto & rec)
{
return std::ranges::size(rec.sequence()) >= 5;
});
fout = fin | length_filter;
// This would also work: copy an input range into an output range
std::ranges::move(fin | length_filter, fout.begin());
}
//![solution]
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