标签:代码 data star this 编译 sde g++ pre gcc
最新的 c++11标准整合进了 线程支持。以下写一个小程序測试一下。
測试代码:
#include <iostream> #include <thread> void hello(void) { std::cout << "Hello concurrent world" << std::endl; } int main(void) { std::thread t(hello); t.join(); }
g++ -std=c++11 thread1.cpp -pthread -g -o thread
在 hello()加个断点。看一下此时的调用栈:
#0 hello () at thread1.cpp:6 #1 0x08049b27 in std::_Bind_simple<void (*())()>::_M_invoke<>(std::_Index_tuple<>) (this=0x804e024) at /usr/include/c++/4.8/functional:1732 #2 0x08049aad in std::_Bind_simple<void (*())()>::operator()() ( this=0x804e024) at /usr/include/c++/4.8/functional:1720 #3 0x08049a62 in std::thread::_Impl<std::_Bind_simple<void (*())()> >::_M_run() (this=0x804e018) at /usr/include/c++/4.8/thread:115 #4 0xb7f76d1e in ??() from /usr/lib/i386-linux-gnu/libstdc++.so.6 #5 0xb7e9ff70 in start_thread (arg=0xb7ca1b40) at pthread_create.c:312 #6 0xb7dd6bee in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:129
能够看到, gcc 4.8里面, c++11的线程基本上是对 pthreads的封装。
我使用的 gcc版本号是 4.8.2
标签:代码 data star this 编译 sde g++ pre gcc
原文地址:http://www.cnblogs.com/yxysuanfa/p/7105690.html