TfGet< N > Class Template Reference

Function object for retrieving the N'th element of a std::pair or std::tuple. More...

Public Types
template<class PairOrTuple >
using	return_type = typename std::tuple_element< N, PairOrTuple >::type

Public Member Functions
template<class PairOrTuple >
constexpr return_type < PairOrTuple > &	operator() (PairOrTuple &p) const
template<class PairOrTuple >
constexpr const return_type < PairOrTuple > &	operator() (const PairOrTuple &p) const
template<class PairOrTuple >
constexpr return_type < PairOrTuple > &&	operator() (PairOrTuple &&p) const

Detailed Description

template<size_t N>
class TfGet< N >

Function object for retrieving the N'th element of a std::pair or std::tuple.

This is similar to std::get<N>, but wrapped up in a function object suitable for use with STL algorithms.

Example:

*     const std::vector<std::pair<int, std::string>> pairs = { ... }
*     std::vector<int> intsOnly(pairs.size());
*     std::transform(pairs.begin(), pairs.end(), intsOnly.begin(), TfGet<0>());
*  

Definition at line 391 of file stl.h.

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

• pxr/base/tf/stl.h