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std::basic_string<CharT,Traits,Allocator>::replace_with_range

From cppreference.com
< cpp‎ | string‎ | basic string
 
 
 
std::basic_string
 
template<container-compatible-range<CharT> R >

constexprstd::basic_string& replace_with_range( const_iterator first,
                                                 const_iterator last,

                                                 R&& rg );
(since C++23)

Replaces the characters in the range [firstlast) 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 macroValueStdFeature
__cpp_lib_containers_ranges202202L(C++23)member functions that accept container compatible range

[edit]Example

#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)[edit]
close