std::replace_copy_if
Актуально для C++23.
#include <algorithm>
Актуально на 2024-03-19.
Define overload #1
template<class InputIter, class OutputIter, class Predicate, class T>
constexpr OutputIter
replace_copy_if(InputIter first, InputIter last, OutputIter result,
Predicate pred, const T& new_value);
template<class InputIter, class OutputIter, class Predicate, class T>
constexpr OutputIter
replace_copy_if(InputIter first, InputIter last, OutputIter result,
Predicate pred, const T& new_value);
template<class InputIter, class OutputIter, class Predicate, class T>
constexpr OutputIter
replace_copy_if(InputIter first, InputIter last, OutputIter result,
Predicate pred, const T& new_value);
Копирует с заменой элементы из диапазона [first, last] в result.
Элементы для которых унарный предикат "pred" вернёт "true", будут заменены на "new_value".
Вернёт Output итератор увеличенный на количество скопированных элементов.
Example, possible implementation
Define overload #2
template<class ExecutionPolicy, class ForwardIter1,
class ForwardIter2, class Predicate, class T>
ForwardIter2
replace_copy_if(ExecutionPolicy&& exec, ForwardIter1 first,
ForwardIter1 last, ForwardIter2 result,
Predicate pred, const T& new_value);
template<class ExecutionPolicy, class ForwardIter1,
class ForwardIter2, class Predicate, class T>
ForwardIter2
replace_copy_if(ExecutionPolicy&& exec, ForwardIter1 first,
ForwardIter1 last, ForwardIter2 result,
Predicate pred, const T& new_value);
template<class ExecutionPolicy, class ForwardIter1,
class ForwardIter2, class Predicate, class T>
ForwardIter2
replace_copy_if(ExecutionPolicy&& exec, ForwardIter1 first,
ForwardIter1 last, ForwardIter2 result,
Predicate pred, const T& new_value);
TODO
Example, possible implementation
Examples
Example 1:
#include <iostream>
#include <algorithm>
#include <string>
#include <string_view>
int main()
{
using namespace std;
using namespace std::string_literals;
auto s = "hello world!"sv;
std::string result;
result.resize(s.size());
replace_copy_if(std::begin(s), std::end(s), std::begin(result),
[](auto ch) {
return ch == 'h';
}, 'H');
std::cout << result << std::endl;
return 0;
}
#include <iostream>
#include <algorithm>
#include <string>
#include <string_view>
int main()
{
using namespace std;
using namespace std::string_literals;
auto s = "hello world!"sv;
std::string result;
result.resize(s.size());
replace_copy_if(std::begin(s), std::end(s), std::begin(result),
[](auto ch) {
return ch == 'h';
}, 'H');
std::cout << result << std::endl;
return 0;
}
#include <iostream>
#include <algorithm>
#include <string>
#include <string_view>
int main()
{
using namespace std;
using namespace std::string_literals;
auto s = "hello world!"sv;
std::string result;
result.resize(s.size());
replace_copy_if(std::begin(s), std::end(s), std::begin(result),
[](auto ch) {
return ch == 'h';
}, 'H');
std::cout << result << std::endl;
return 0;
}
Hello world!
Hello world!
Hello world!
Changelog
See also
TODO
This page was last modified on 2024-03-19