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Returns a new sequence, with the last element of the original removed.
template<
typename Sequence
>
typename result_of::pop_back<Sequence const>::type pop_back(Sequence const& seq);
Table 1.69. Parameters
|
Parameter |
Requirement |
Description |
|---|---|---|
|
|
A model of Forward Sequence |
Operation's argument |
pop_back(seq);
Return type: A model of Forward Sequence.
Semantics: Returns a new sequence containing
all the elements of seq,
except the last element. The elements in the new sequence are in the
same order as they were in seq.
Constant. Returns a view which is lazily evaluated.
#include <boost/fusion/algorithm/transformation/pop_back.hpp> #include <boost/fusion/include/pop_back.hpp>
assert(___pop_back__(make_vector(1,2,3)) ==make_vector(1,2));