NAME¶

std::basic_string_view::remove_suffix - std::basic_string_view::remove_suffix

Synopsis¶

constexpr void remove_suffix( size_type n ); (since C++17)

Moves the end of the view back by n characters.

The behavior is undefined if n > size().

Parameters¶

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

Return value¶

(none)

Complexity¶

Constant.

Example¶

// Run this code

#include <iostream>
#include <string_view>
int main()
{
char arr[] = {'a', 'b', 'c', 'd', '\0', '\0', '\0'};
std::string_view v(arr, sizeof arr);
auto trim_pos = v.find('\0');
if(trim_pos != v.npos)
v.remove_suffix(v.size() - trim_pos);
std::cout << "Array: '" << arr << "', size=" << sizeof arr << '\n'
<< "View : '" << v << "', size=" << v.size() << '\n';
}

Output:¶

Array: 'abcd', size=7
View : 'abcd', size=4

See also¶

remove_prefix shrinks the view by moving its start forward
(C++17) (public member function)