SeqAn3  3.0.3
The Modern C++ library for sequence analysis.
seqan3::fields< fs > Struct Template Reference

A class template that holds a choice of seqan3::field. More...

#include <seqan3/io/record.hpp>

Related Functions

(Note that these are not member functions.)

template<typename t >
SEQAN3_CONCEPT fields_specialisation = is_value_specialisation_of_v<t, fields>
 Auxiliary concept that checks whether a type is a specialisation of seqan3::fields.

Detailed Description

template<field ... fs>
struct seqan3::fields< fs >

A class template that holds a choice of seqan3::field.

Template Parameters
fsThe fields you wish to be present in the seqan3::record returned by your file.
See also

This class acts as a compile time list of seqan3::field elements. It is used in specialising file classes to determine the elements in a seqan3::record.


#include <sstream>
auto input = R"(> TEST1
> Test2
> Test3
int main()
using seqan3::get;
// specify custom field combination/order to file:
auto record = fin.front(); // get current record, in this case the first
auto & id =;
auto & seq = record.sequence();
The FastA format.
Definition: format_fasta.hpp:81
A class for reading sequence files, e.g. FASTA, FASTQ ...
Definition: input.hpp:309
@ seq
The "sequence", usually a range of nucleotides or amino acids.
Provides seqan3::sequence_file_output and corresponding traits classes.
constexpr auto const & get(configuration< configs_t... > const &config) noexcept
This is an overloaded member function, provided for convenience. It differs from the above function o...
Definition: configuration.hpp:429
Provides the seqan3::record template and the seqan3::field enum.
Provides seqan3::sequence_file_input and corresponding traits classes.
A class template that holds a choice of seqan3::field.
Definition: record.hpp:172

The documentation for this struct was generated from the following file: