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Sequence | ||||
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Associative | ||||
Unordered associative | ||||
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Adaptors | ||||
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Views | ||||
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Tables | ||||
Iterator invalidation | ||||
Member function table | ||||
Non-member function table |
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Deduction guides(C++17) |
template<container-compatible-range<T> R> void prepend_range( R&& rg); | (since C++23) (constexpr since C++26) | |
Inserts, in non-reversing order, copies of elements inrg beforebegin()
. Each iterator in the rangerg is dereferenced exactly once.
No iterators or references are invalidated.
Contents |
rg | - | acontainer compatible range, that is, aninput_range whose elements are convertible toT |
Type requirements | ||
-IfT is notEmplaceConstructible intolist from*ranges::begin(rg), the behavior is undefined. |
Linear in size ofrg.
Feature-test macro | Value | Std | Feature |
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__cpp_lib_containers_ranges | 202202L | (C++23) | Ranges-aware construction and insertion |
#include <algorithm>#include <cassert>#include <list>#include <vector> int main(){auto container=std::list{0,1,2,3};constauto rg=std::vector{-3,-2,-1}; #if __cpp_lib_containers_ranges container.prepend_range(rg);#else container.insert(container.begin(), rg.cbegin(), rg.cend());#endifassert(std::ranges::equal(container,std::list{-3,-2,-1,0,1,2,3}));}
(C++23) | adds a range of elements to the end (public member function) |
(C++23) | inserts a range of elements (public member function) |
inserts an element to the beginning (public member function) | |
(C++11) | constructs an element in-place at the beginning (public member function) |