C++显示异常时的堆栈跟踪

#include<iostream>
#include <stdexcept>
#include<stacktrace>

void func2() {
    throw std::runtime_error("An error occurred in func2");
}

void func1() {
    func2();
}

int main() {
    try {
        func1();
    } catch (const std::exception& e) {
        std::cerr << "Caught exception: " << e.what()<< std::endl;
        try {
            std::rethrow_if_nested(e);
        } catch (const std::exception& nested) {
            std::cerr << "Caught nested exception: "<< nested.what()<< std::endl;
            std::stack_trace trace = nested.get_stack_trace();
            std::cerr << "Stack trace:"<< std::endl;
            std::cerr<< trace<< std::endl;
        }
    }
    return 0;
}