MINGW 4.7.0犯规编译代码用#include <升压/线程>

Question

MINGW 4.7.0升压1.47
代码：

#include <iostream> 
#include <boost/thread.hpp> 
int main(int argc, char *argv[]) 
{ 
std::cout<<"In main"<<std::endl; 
} 

编译器串：

g++.exe -Wall -fexceptions -g -IC:\soft\ides_comp\mingw\include\boost_1_47_0 -c  D:\work\cpp_cb\mt1\main.cpp -o obj\Debug\main.o 

它不编译和我有同样的错误，无论我尝试的编译器选项。

警告：
In file included from C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread/win32/thread_data.hpp:12:0, from C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread/thread.hpp:15, from C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread.hpp:13, from D:\work\cpp_cb\mt1\main.cpp:2: C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread/win32/thread_heap_alloc.hpp:59:40: warning: inline function 'void* boost::detail::allocate_raw_heap_memory(unsigned int)' declared as dllimport: attribute ignored [-Wattributes] C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread/win32/thread_heap_alloc.hpp:69:39: warning: inline function 'void boost::detail::free_raw_heap_memory(void*)' declared as dllimport: attribute ignored [-Wattributes]

错误：
In file included from C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/smart_ptr/shared_ptr.hpp:30:0, from C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/shared_ptr.hpp:17, from C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/date_time/time_clock.hpp:17, from C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread/thread_time.hpp:9, from C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread/win32/thread_data.hpp:10, from C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread/thread.hpp:15, from C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread.hpp:13, from D:\work\cpp_cb\mt1\main.cpp:2:

C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/checked_delete.hpp: In instantiation of 'void boost::checked_delete(T*) [with T = boost::error_info<boost::tag_original_exception_type, const std::type_info*>]':

C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/smart_ptr/detail/shared_count.hpp:95:13: required from 'boost::detail::shared_count::shared_count(Y*) [with Y = boost::error_info<boost::tag_original_exception_type, const std::type_info*>]' C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/smart_ptr/shared_ptr.hpp:183:50: required from 'boost::shared_ptr<T>::shared_ptr(Y*) [with Y = boost::error_info<boost::tag_original_exception_type, const std::type_info*>; T = boost::error_info<boost::tag_original_exception_type, const std::type_info*>]' C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/exception/info.hpp:171:69: required from 'const E& boost::exception_detail::set_info(const E&, const boost::error_info<Tag, T>&) [with E = boost::unknown_exception; Tag = boost::tag_original_exception_type; T = const std::type_info*]' C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/exception/info.hpp:192:46: required from 'typename boost::enable_if<boost::exception_detail::derives_boost_exception<E>, const E&>::type boost::operator<<(const E&, const boost::error_info<Tag, T>&) [with E = boost::unknown_exception; Tag = boost::tag_original_exception_type; T = const std::type_info*; typename boost::enable_if<boost::exception_detail::derives_boost_exception<E>, const E&>::type = const boost::unknown_exception&]' C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/exception/detail/exception_ptr.hpp:182:13: required from 'void boost::unknown_exception::add_original_type(const E&) [with E = std::exception]' C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/exception/detail/exception_ptr.hpp:161:32: required from here

警告2：
C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/checked_delete.hpp:34:5: warning: deleting object of polymorphic class type 'boost::error_info<boost::tag_original_exception_type, const std::type_info*>' which has non-virtual destructor might cause undefined behaviour [-Wdelete-non-virtual-dtor]

什么可以吗？由于

Answer 1

如果您使用Win32线程编译线程库，你可能需要

-DBOOST_USE_WINDOWS_H 

在你的编译器标志

。虽然我不认为这是问题（我因为不使用它而得到一组不同的错误），但你可以试一试。

Answer 2

这个答案可能不是很直，但： 我确实使用g ++ 4.7.0 20111209，它支持线程。

#include <iostream> 
#include <thread> 

using namespace std; 

void foo() 
{ 
    cout << "Hello from thread\n"; 
} 

int main() 
{ 
    thread th1(foo); 
    th1.join(); 
    return 0; 
} 

在编译过程中使用-std = C++ 11的选择使用哪一个支持多线程

PS的最新标准： 提升1.48编译我的电脑上使用MinGW 4.7.0给出了一个错误（当试图使用boost :: thread）： 线程支持不可用：它已被显式禁用BOOST_DISABLE_THREADS 所以我想它在默认情况下被g ++ 4.7.0禁用（使用g ++ 4.6.2它不是）。

Answer 3

在稍后的升级版本中已修复此问题。查看此处：

https://svn.boost.org/trac/boost/ticket/6165

更新升压/配置/ STDLIB/libstdcpp3.hpp：

#if defined(_GLIBCXX_HAVE_GTHR_DEFAULT) \ 
    || defined(_GLIBCXX_HAS_GTHREADS) \ 
    || defined(_GLIBCXX__PTHREADS) \ 
    || defined(WIN32) 

增加_GLIBCXX_HAS_GTHREADS和/或WIN32（从上面的链接，看到补丁）。

WIN32似乎有点蛮力，但没有工作没有（至少不是对我来说，我使用旧的升压版本1.42）。