std::basic_string_view<CharT,Traits>::find_last_not_of

Since C++17

Finds the last character not equal to any of the characters in the given character sequence. The search considers only the interval [0,pos].

# Declarations

constexpr size_type
find_last_not_of( basic_string_view v, size_type pos = npos ) const noexcept;

(since C++17)

constexpr size_type
find_last_not_of( CharT ch, size_type pos = npos ) const noexcept;

(since C++17)

constexpr size_type
find_last_not_of( const CharT* s, size_type pos, size_type count ) const;

(since C++17)

constexpr size_type
find_last_not_of( const CharT* s, size_type pos = npos ) const;

(since C++17)

# Parameters

# Return value

Position of the last character not equal to any of the characters in the given string, or npos if no such character is found.

# Example

#include <string_view>
using std::operator""sv;
 
int main()
{
    static_assert(1 == "BCDEF"sv.find_last_not_of("DEF"));
                    //   ^
    static_assert(2 == "BCDEFG"sv.find_last_not_of("EFG", 3));
                    //    ^
    static_assert(2 == "ABBA"sv.find_last_not_of('A'));
                    //    ^
    static_assert(1 == "ABBA"sv.find_last_not_of('A', 1));
                    //   ^
}

# See also