Modifying Algorithms

C++ has many algorithms to modify elements and ranges.

Copy Elements and Ranges

You can copy ranges forward with std::copy, backward with std::copy_backward and conditionally with std::copy_if. If you want to copy n elements, you can use std::copy_n.

Copies the range:

OutIt copy(InpIt first, InpIt last, OutIt result)
FwdIt2 copy(ExePol pol, FwdIt first, FwdIt last, FowdIt2 result)

Copies n elements:

OutIt copy_n(InpIt first, Size n, OutIt result)
FwdIt2 copy_n(ExePol pol, FwdIt first, Size n, FwdIt2 result)

Copies the elements dependent on the predicate pre.

OutIt copy_if(InpIt first, InpIt last, OutIt result, UnPre pre)
FwdIt2 copy_if(ExePol pol, FwdIt first, FwdIt last, FwdIt2 result, UnPre pre)

Copies the range backward:

BiIt copy_backward(BiIt first, BiIt last, BiIt result)

The algorithms need input iterators and copy their elements to result. They return an end iterator to the destination range.

Copy elements and ranges

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