在strpbrk函数中返回nullptr时出现分段错误

#include <iostream>
#include <cstring>

const char* findCharInString(const char* str, const char* chars) {
    if (str == nullptr || chars == nullptr) {
        std::cout << "Error: Invalid input parameters." << std::endl;
        return nullptr;
    }
    
    const char* result = strpbrk(str, chars);
    
    if (result == nullptr) {
        std::cout << "Error: No matching character found." << std::endl;
    }
    
    return result;
}

int main() {
    const char* str = "Hello, World!";
    const char* chars = "aeiou";
    
    const char* foundChar = findCharInString(str, chars);
    
    if (foundChar != nullptr) {
        std::cout << "Found character: " << *foundChar << std::endl;
    }
    
    return 0;
}