NAME

std::char_traits::compare - std::char_traits::compare

Synopsis

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

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

Throws nothing.

Complexity

Linear in count.