std::char_traits<CharT>::compare (3) - Linux Man Pages

std::char_traits<CharT>::compare: std::char_traits<CharT>::compare

NAME

std::char_traits<CharT>::compare - std::char_traits<CharT>::compare

Synopsis


static int compare( const char_type* s1, const char_type* s2, std::size_t count ); (until C++17)
static constexpr int compare( const char_type* s1, const char_type* s2, std::size_t count ); (since C++17)


Compares the first count characters of the character strings s1 and s2. The comparison is done lexicographically.
If count is zero, strings are considered equal.

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.

Exceptions


(none)

Complexity


Linear in count.