pthread 创建线程函数gcc g++编译问题

#include "pthread.h"#include "stdio.h"void thread(void){ printf("thread");}int main(){ pthread_t pid; pthread_create(&pid, NULL, test_thread, NULL); return 0;} 

 

$ gcc -o main main.c -lpthread

编译没有问题

 

但使用g++编译则出现问题

$ g++  -o main main.c -lpthread

main.c: In function ‘int main()’:

main.c:14: error: invalid conversion from ‘void*’ to ‘void* (*)(void*)’

main.c:14: error:   initializing argument 3 of ‘int pthread_create(pthread_t*, const pthread_attr_t*, void* (*)(void*), void*)’

线程函数改为void* thread(void* ptr)才可以

#include "pthread.h"#include "stdio.h"void* thread(void* ptr){ printf("test");}int main(){ pthread_t pid; pthread_create(&pid, NULL, thread, NULL); return 0;}