std::experimental::erase_if(std::deque)
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 | Merged into ISO C++ The functionality described on this page was merged into the mainline ISO C++ standardas of 11/2018, seestd::erase_if(since C++20) |
Defined in header <experimental/deque> | ||
template<class T,class Alloc,class Pred> void erase_if(std::deque<T, Alloc>& c, Pred pred); | (library fundamentals TS v2) | |
Erases all elements that satisfy the predicatepred from the container. Equivalent toc.erase(std::remove_if(c.begin(), c.end(), pred), c.end());.
Contents |
[edit]Parameters
| c | - | container from which to erase |
| pred | - | predicate that determines which elements should be erased |
[edit]Complexity
Linear.
[edit]Example
Run this code
#include <experimental/deque>#include <iostream> template<typename Os,typename Container>inline Os& operator<<(Os& os, Containerconst& container){ os<<"{ ";for(constauto& item: container) os<< item<<' ';return os<<'}';} int main(){std::deque<int> data{3,3,4,5,5,6,6,7,2,1,0};std::cout<<"Original:\n"<< data<<'\n';auto divisible_by_3=[](autoconst& x){return(x%3)==0;}; std::experimental::erase_if(data, divisible_by_3);std::cout<<"Erase all items divisible by 3:\n"<< data<<'\n';}
Output:
Original:{ 3 3 4 5 5 6 6 7 2 1 0 }Erase all items divisible by 3:{ 4 5 5 7 2 1 }[edit]See also
| removes elements satisfying specific criteria (function template)[edit] | |
(library fundamentals 2 TS) | erases all elements equal to a specific value from astd::deque (function template)[edit] |
