尝试在Ubuntu上使用pthread时出错
我正在阅读关于C ++中的线程的教程，并测试了以下代码：
#include <iostream>
#include <pthread.h>
#include <cstdlib>
using namespace std;
#define NUM_THREADS 5
void *PrintHello(void *threadid)
{
long tid;
tid = (long)threadid;
cout << "Hello World! Thread ID, " << tid << endl;
pthread_exit(NULL);
}
int main ()
{
pthread_t threads[NUM_THREADS];
int rc;
int i;
for( i=0; i < NUM_THREADS; i++ ){
cout << "main() : creating thread, " << i << endl;
rc = pthread_create(&threads[i], NULL,
PrintHello, &threads[i]);
if (rc){
cout << "Error:unable to create thread," << rc << endl;
exit(-1);
}
}
pthread_exit(NULL);
}
我试着用gcc和g ++编译这段代码，但是我总是遇到编译错误。
使用gcc -pthread thread_test.c：
/tmp/ccmpQLyp.o：函数PrintHello(void*)': thread_test.cpp:(.text+0x1a): undefined reference to std :: cout'thread_test.cpp :( .text + 0x1f）：undefined引用std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)' thread_test.cpp:(.text+0x2e): undefined reference to std :: ostream :: operator <<（long）'的未定义引用thread_test.cpp :(。text + 0x33）：未定义的引用std::basic_ostream<char, std::char_traits<char> >& std::endl<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&)' thread_test.cpp:(.text+0x3b): undefined reference to标准:: ostream的::的operator <<（标准:: ostream的＆（*）（标准:: ostream的＆））” /tmp/ccmpQLyp.o：在功能main': thread_test.cpp:(.text+0x63): undefined reference to std :: cout'thread_test.cpp :(。text + 0x68）：未定义的引用std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)' thread_test.cpp:(.text+0x75): undefined reference to std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)' thread_test.cpp:(.text+0x75): undefined reference to std :: ostream :: operator <<（int）'thread_test.cpp :(。text + 0x7a）： std::basic_ostream<char, std::char_traits<char> >& std::operator<< <std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&, char const*)' thread_test.cpp:(.text+0x75): undefined reference to std::basic_ostream<char, std::char_traits<char> >& std::endl<char, std::char_traits<char> >(std::basic_ostream<char, std::char_traits<char> >&)' thread_test.cpp:(.text+0x82): undefined reference to std :: ostream :: operator <<（std :: ostream＆（*）（std :: ostream＆））'thread_test.cpp :(。text + （std :: basic_ostream>＆，char const *）：未定义的引用std::cout' thread_test.cpp:(.text+0xd1): undefined reference to std :: basic_ostream>＆std :: operator <<> 'thread_test.cpp :(。text + 0xde）：未定义的引用std::ostream::operator<<(int)' thread_test.cpp:(.text+0xe3): undefined reference to std :: basic_ostream>＆std： std::ostream::operator<<(std::ostream& (*)(std::ostream&))' /tmp/ccmpQLyp.o: In function ：endl>（std :: basic_ostream>＆）'thread_test.cpp :(。text + 0xeb）：未定义的引用std::ostream::operator<<(std::ostream& (*)(std::ostream&))' /tmp/ccmpQLyp.o: In function __static_initialization_and_destruction_0 std::ostream::operator<<(std::ostream& (*)(std::ostream&))' /tmp/ccmpQLyp.o: In function （int，int）'：thread_test.cpp :(。text + 0x141）：对std::ios_base::Init::Init()' thread_test.cpp:(.text+0x150): undefined reference to std： ：ios_base :: Init ::〜Init（）'/tmp/ccmpQLyp.o:(.eh_frame+0x47）：未定义引用'__gxx_personality_v0'collect2：错误：ld返回1退出状态
你能帮我吗？ 我需要做些什么才能让代码在Linux和Windows上运行？
使用g++而不是gcc ，或手动链接-lstdc++ 。