std::char_traits<char>::compare, std::char_traits<wchar_t>::compare, std::char_traits<char8_t>::compare, std::char_traits<char16_t>::compare, std::char_traits<char32_t>::
From cppreference.com
< cpp | string | char traits
|
static
int compare(
const char_type* s1, const char_type* s2,
std::size_t count ) ; |
(constexpr since C++17) | |
Compares the first count characters of the character strings s1 and s2
If count is zero, strings are considered equal.
See CharTraits for the general requirements on character traits for X::compare
Parameters
| s1, s2 | - | pointers to character strings to compare |
| count | - | the number of characters to compare from each character string |
Return value
Negative value if s1 is less than s2.
0 if s1 is equal to s2
Positive value if s1 is greater than s2.
Complexity
Linear in count.