bsl::basic_string<char32_t>::compare

Lexicographically compare the substring of this string of the specified lhsNumChars length starting at the specified lhsPosition (or the suffix of this string starting at lhsPosition if lhsPosition + lhsNumChars > length()) with the substring of the specified other of the optionally specified otherNumChars length starting at the specified otherPosition (or the suffix of other starting at otherPosition if otherPosition + otherNumChars > other.length()). If numChars is not specified, npos is used. Return a negative value if the indicated substring of this string is less than the indicated substring of other, a positive value if it is greater than the indicated substring of other, and 0 in case of equality. CHAR_TRAITS::lt is used to compare characters. See {Lexicographical Comparisons}. Throw out_of_range if lhsPosition > length() or otherPosition > other.length().

Synopsis

Declared in <bslstl_string.h>

template<class STRING_VIEW_LIKE_TYPE>
int
compare(
    size_type lhsPosition,
    size_type lhsNumChars,
    STRING_VIEW_LIKE_TYPE const& other,
    size_type otherPosition,
    size_type otherNumChars = npos) const;