在C++中将字符序列重复到更大缓冲区的最简单方法

#include<iostream>
#include<string>
#include<vector>

std::vector<char> repeatString(const std::string& input, size_t repeatCount) {
    std::vector<char> result;
    for (size_t i = 0; i< repeatCount; ++i) {
        result.insert(result.end(), input.begin(), input.end());
    }
    return result;
}

int main() {
    std::string input = "Hello, world!";
    size_t repeatCount = 3;
    std::vector<char> result = repeatString(input, repeatCount);

    std::cout << "Repeated string: ";
    for (char c : result) {
        std::cout << c;
    }
    std::cout<< std::endl;

    return 0;
}