◐ Shell
clean mode source ↗

std::basic_string_view<CharT,Traits>::front - cppreference.com

From cppreference.com

constexpr const_reference front() const;
(since C++17)

Returns reference to the first character in the view.

If empty() is true, the behavior is undefined.

(until C++26)

If empty() is true:

(since C++26)

Return value

data_[0]

Complexity

Constant.

Example

#include <iostream>
#include <string_view>

int main()
{
    for (std::string_view str{"ABCDEF"}; !str.empty(); str.remove_prefix(1))
        std::cout << str.front() << ' ' << str << '\n';
}

Output: 

A ABCDEF
B BCDEF
C CDEF
D DEF
E EF
F F

See also

accesses the last character
(public member function) [edit]
checks whether the view is empty
(public member function) [edit]
accesses the first character
(public member function of std::basic_string<CharT,Traits,Allocator>) [edit]