std::wcscmp

Compares two null-terminated wide strings lexicographically.

The sign of the result is the sign of the difference between the values of the first pair of wide characters that differ in the strings being compared.

The behavior is undefined if lhs or rhs are not pointers to null-terminated wide strings.

Parameters

Return value

Negative value if lhs appears before rhs in lexicographical order.

Zero if lhs and rhs compare equal.

Positive value if lhs appears after rhs in lexicographical order.

Notes

This function is not locale-sensitive, unlike std::wcscoll

Example

#include <algorithm>
#include <cwchar>
#include <iostream>
#include <locale>
#include <vector>
 
int main()
{
    std::vector<const wchar_t*> leaders
    {
        L"Ленин", L"Сталин", L"Маленков", L"Хрущёв",
        L"Брежнев", L"Андропов", L"Черненко", L"Горбачёв"
    };
 
    std::ranges::sort(leaders, [](auto leaderLHS, auto leaderRHS)
    {
        return std::wcscmp(leaderLHS, leaderRHS) < 0;
    });
 
    std::setlocale(LC_ALL, "en_US.utf8");
    std::wcout.imbue(std::locale("en_US.utf8"));
    for (auto leader : leaders)
        std::wcout << leader[0] << ' ';
    std::wcout << '\n';
}

А Б Г Л М С Х Ч

See also