接受所有数据类型的不区分大小写的c++排序？

#include <iostream>
#include <vector>
#include <algorithm>

template<typename T>
void caseInsensitiveSort(std::vector<T>& data) {
    std::sort(data.begin(), data.end(), [](const T& a, const T& b) {
        std::string strA, strB;
        // 将元素转换为小写字符串进行比较
        for (const auto& c : a) {
            strA += std::tolower(c);
        }
        for (const auto& c : b) {
            strB += std::tolower(c);
        }
        return strA < strB;
    });
}

int main() {
    std::vector<std::string> strings = {"apple", "Banana", "cherry", "DURIAN"};
    caseInsensitiveSort(strings);
    for (const auto& str : strings) {
        std::cout << str << " ";
    }
    std::cout << std::endl;

    std::vector<int> numbers = {5, 2, 10, 3};
    caseInsensitiveSort(numbers);
    for (const auto& num : numbers) {
        std::cout << num << " ";
    }
    std::cout << std::endl;

    return 0;
}