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std::experimental::basic_string_view::remove_prefix(3) C++ Standard Libary std::experimental::basic_string_view::remove_prefix(3)

NAME

std::experimental::basic_string_view::remove_prefix - std::experimental::basic_string_view::remove_prefix

Synopsis


constexpr void remove_prefix(size_type n); (library fundamentals TS)


Moves the start of the view forward by n characters.


The behavior is undefined if n > size().

Parameters


n - number of characters to remove from the start of the view

Return value


(none)

Complexity


Constant.

Example

// Run this code


#include <iostream>
#include <experimental/string_view>
int main()
{
std::string str = " trim me";
std::experimental::string_view v = str;
v.remove_prefix(std::min(v.find_first_not_of(" "), v.size()));
std::cout << "String: '" << str << "'\n"
<< "View : '" << v << "'\n";
}

Output:


String: ' trim me'
View : 'trim me'

See also


remove_suffix shrinks the view by moving its end backward
(public member function)

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2024.06.10 http://cppreference.com