std::basic_string<CharT,Traits,Allocator>::replace_with_range
From cppreference.com
< cpp | string | basic string
template<container-compatible-range<CharT> R > constexprstd::basic_string& replace_with_range( const_iterator first, | (since C++23) | |
Replaces the characters in the range [
first,
last)
with the characters from the range rg.
Equivalent to
return replace(first, last, std::basic_string(std::from_range, std::forward<R>(rg), get_allocator()));
Contents |
[edit]Parameters
first, last | - | range of characters that is going to be replaced |
rg | - | a container compatible range |
[edit]Return value
*this
[edit]Complexity
Linear in size of rg.
[edit]Exceptions
If the operation would cause size()
to exceed max_size()
, throws std::length_error.
If an exception is thrown for any reason, this function has no effect (strong exception safety guarantee).
[edit]Notes
Feature-test macro | Value | Std | Feature |
---|---|---|---|
__cpp_lib_containers_ranges | 202202L | (C++23) | member functions that accept container compatible range |
[edit]Example
Run this code
#include <algorithm>#include <cassert>#include <forward_list>#include <iterator>#include <string> int main(){usingnamespace std::literals; auto s{"Today is today!"s};constexprauto today{"today"sv};constexprauto tomorrow{"tomorrow's yesterday"sv};std::forward_list<char> rg; std::ranges::reverse_copy(tomorrow, std::front_inserter(rg)); constauto pos{s.rfind(today)};assert(pos != s.npos);constauto first{std::next(s.begin(), pos)};constauto last{std::next(first, today.length())}; #ifdef __cpp_lib_containers_ranges s.replace_range(first, last, rg);#else s.replace(first, last, rg.cbegin(), rg.cend());#endif assert("Today is tomorrow's yesterday!"== s);}
[edit]See also
replaces specified portion of a string (public member function) |