Element Access

Functions
template<typename Container , typename P >
auto	rangeless::fn::get_unique (Container &container, P &&pred) -> decltype(*container.begin())
	Access unique element matching the predicate. More...
template<typename Container , typename P , typename Construct >
auto	rangeless::fn::set_unique (Container &container, P &&pred, Construct &&con) -> decltype(*container.begin())
	Similar to get_unique, but end-insert an element if missing. More...
template<typename Container >
auto	rangeless::fn::first_or_default (const Container &c) -> typename Container::value_type
	e.g. const CConstRef<CSeq_align> aln = first_or_default( get_alns_annot(...)->Get() ); More...
template<typename Container , typename Pred >
auto	rangeless::fn::first_or_default (const Container &c, Pred &&pred) -> typename Container::value_type
template<typename Container >
auto	rangeless::fn::last_or_default (const Container &c) -> typename Container::value_type
template<typename Container , typename Pred >
auto	rangeless::fn::last_or_default (const Container &c, Pred &&pred) -> typename Container::value_type

Detailed Description

Function Documentation

first_or_default() [1/2]

template<typename Container >

auto rangeless::fn::first_or_default

(

const Container &

c

)

-> typename Container::value_type

e.g. const CConstRef<CSeq_align> aln = first_or_default( get_alns_annot(...)->Get() );

Definition at line 4450 of file fn.hpp.

first_or_default() [2/2]

template<typename Container , typename Pred >

auto rangeless::fn::first_or_default	(	const Container &	c,
		Pred &&	pred
	)		-> typename Container::value_type

Definition at line 4456 of file fn.hpp.

get_unique()

template<typename Container , typename P >

auto rangeless::fn::get_unique	(	Container &	container,
		P &&	pred
	)		-> decltype(*container.begin())

Access unique element matching the predicate.

Throw unless found exactly one element matching the predicate. Returns const or non-const reference depending on the constness of the container.

See also

set_unique

const CConstRef<CUser_object>& model_evidence_uo = 
    fn::get_unique(seq_feat.GetExts(), [](CConstRef<CUser_object> uo)
    {
        return uo->GetType().GetStr() == "ModelEvidence";
    });

Definition at line 4370 of file fn.hpp.

last_or_default() [1/2]

template<typename Container >

auto rangeless::fn::last_or_default

(

const Container &

c

)

-> typename Container::value_type

Definition at line 4463 of file fn.hpp.

last_or_default() [2/2]

template<typename Container , typename Pred >

auto rangeless::fn::last_or_default	(	const Container &	c,
		Pred &&	pred
	)		-> typename Container::value_type

Definition at line 4469 of file fn.hpp.

set_unique()

template<typename Container , typename P , typename Construct >

auto rangeless::fn::set_unique	(	Container &	container,
		P &&	pred,
		Construct &&	con
	)		-> decltype(*container.begin())

Similar to get_unique, but end-insert an element if missing.

CRef<CSeqdesc>& gb_desc =
    fn::set_unique(seq_entry.SetDescr().Set(), [](CConstRef<CSeqdesc> d)
    {    
        return d->IsGenbank();
    },   
    [] // add if missing (must satisfy pred)
    {    
        auto g = Ref(new CSeqdesc);
        g->SetGenbank();
        return g;
    });  

Definition at line 4413 of file fn.hpp.