在c++中将比较运算符作为参数传递的最佳方法(性能方面)

bool compare(int a, int b) {
    return a < b;
}

bool performComparison(int a, int b, bool (*cmp)(int, int)) {
    return cmp(a, b);
}

int main() {
    int a = 5, b = 10;
    bool result = performComparison(a, b, compare);
    // result为true，因为compare函数返回a < b的结果
    return 0;
}

struct Compare {
    bool operator()(int a, int b) const {
        return a < b;
    }
};

bool performComparison(int a, int b, const Compare& cmp) {
    return cmp(a, b);
}

int main() {
    int a = 5, b = 10;
    bool result = performComparison(a, b, Compare());
    // result为true，因为Compare类的operator()函数返回a < b的结果
    return 0;
}