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constexpr size_type find_first_not_of( basic_string_view v, size_type pos=0)constnoexcept; | (1) | (since C++17) |
constexpr size_type find_first_not_of( CharT ch, size_type pos=0)constnoexcept; | (2) | (since C++17) |
constexpr size_type find_first_not_of(const CharT* s, size_type pos, size_type count)const; | (3) | (since C++17) |
constexpr size_type find_first_not_of(const CharT* s, size_type pos=0)const; | (4) | (since C++17) |
Finds the first character not equal to any of the characters in the given character sequence.
Contents |
| v | - | view to search for |
| pos | - | position at which to start the search |
| count | - | length of the string of characters to compare |
| s | - | pointer to a string of characters to compare |
| ch | - | character to compare |
Position of the first character not equal to any of the characters in the given string, orstd::string_view::npos if no such character is found.
O(size() * v.size()) at worst.
#include <string_view>usingnamespace std::literals; int main(){ static_assert(2=="BCDEF"sv.find_first_not_of("ABC"));// ^ static_assert(4=="BCDEF"sv.find_first_not_of("ABC",4));// ^ static_assert(1=="BCDEF"sv.find_first_not_of('B'));// ^ static_assert(3=="BCDEF"sv.find_first_not_of('D',2));// ^}
| find characters in the view (public member function)[edit] | |
| find the last occurrence of a substring (public member function)[edit] | |
| find first occurrence of characters (public member function)[edit] | |
| find last occurrence of characters (public member function)[edit] | |
| find last absence of characters (public member function)[edit] | |
| find first absence of characters (public member function of std::basic_string<CharT,Traits,Allocator>)[edit] |
