MinGw 4.7.0 增强版 1.47
代码:
#include <iostream>
#include <boost/thread.hpp>
int main(int argc, char *argv[])
{
std::cout<<"In main"<<std::endl;
}
编译器字符串:
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
它无法编译,无论我尝试什么编译器选项,我都会遇到相同的错误。
警告:
在 C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread/win32/thread_data.hpp:12:0 包含的文件中,
来自 C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread/thread.hpp:15,
来自 C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread.hpp:13,
来自 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:警告:内联函数 'void* boost::detail::allocate_raw_heap_memory(unsigned int)' 声明为 dllimport:属性被忽略 [-Wattributes]
C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread/win32/thread_heap_alloc.hpp:69:39:警告:内联函数'void boost::detail::free_raw_heap_memory(void*)'声明为dllimport:属性忽略 [-Wattributes]
错误:
在 C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/smart_ptr/shared_ptr.hpp:30:0 包含的文件中,
来自 C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/shared_ptr.hpp:17,
来自 C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/date_time/time_clock.hpp:17,
来自 C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread/thread_time.hpp:9,
来自 C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread/win32/thread_data.hpp:10,
来自 C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread/thread.hpp:15,
来自 C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/thread.hpp:13,
来自 D:\work\cpp_cb\mt1\main.cpp:2:
C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/checked_delete.hpp: 在 'void boost::checked_delete(T*) 的实例化中 [with T = boost::error_info]':
C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/smart_ptr/detail/shared_count.hpp:95:13:需要来自 'boost::detail::shared_count::shared_count(Y*) [与 Y = boost::error_info]'
C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/smart_ptr/shared_ptr.hpp:183:50: 需要 'boost::shared_ptr::shared_ptr(Y*) [其中 Y = boost::error_info< ;boost::tag_original_exception_type, const std::type_info*>; T = boost::error_info]'
C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/exception/info.hpp:171:69:需要来自 'const E& boost::exception_detail::set_info(const E&, const boost::error_info&) [其中 E = boost::unknown_exception;标签 = 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:从 'typename boost::enable_if 需要,const E> ::type boost::operator<<(const E&, const boost::error_info&) [其中 E = boost::unknown_exception;标签 = boost::tag_original_exception_type; T = const std::type_info*;类型名 boost::enable_if, 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: 需要 'void boost::unknown_exception::add_original_type(const E&) [with E = std::例外]'
C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/exception/detail/exception_ptr.hpp:161:32:此处需要
警告 2:
C:\soft\ides_comp\mingw\include\boost_1_47_0/boost/checked_delete.hpp:34:5: 警告:删除多态类类型 'boost::error_info'具有非虚拟析构函数可能会导致未定义的行为 [-Wdelete-non-virtual-dtor]
它会是什么?谢谢
MinGw 4.7.0 Boost 1.47
code:
#include <iostream>
#include <boost/thread.hpp>
int main(int argc, char *argv[])
{
std::cout<<"In main"<<std::endl;
}
Compiler string:
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
It doesnt compile and i have same error whatever compiler options i tried.
Warning:
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]
Error:
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
Warning 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]
What can it be? Thanks
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评论(3)
这已在后续的 boost 版本中得到修复。检查此处:
https://svn.boost.org/trac/boost/ticket/6165< /a>
更新 boost/config/stdlib/libstdcpp3.hpp:
添加了 _GLIBCXX_HAS_GTHREADS 和/或 WIN32(从上面的链接,请参阅补丁)。
WIN32 似乎有点暴力,但没有它就无法工作(至少对我来说不是。我使用的是较旧的 boost 版本 1.42)。
This has been fixed in later boost versions. Check here:
https://svn.boost.org/trac/boost/ticket/6165
Update boost/config/stdlib/libstdcpp3.hpp:
Added _GLIBCXX_HAS_GTHREADS and/or WIN32 (from the link above, see patch).
WIN32 seems a bit brute force, but doesn't work without (at least not for me. I am using an older boost version 1.42).
如果您编译了使用 Win32 线程的线程库,则可能需要
在编译器标志中添加。虽然我不认为这是问题(我因不使用它而收到一组不同的错误),但您可以尝试一下。
If you compiled the thread library for using Win32 threads, you might need
in your compiler flags. While I don't think that's the issue (I get a different set of errors for not using it), you might give it a try.
这个答案可能不是很直接,但是:
我确实使用 g++ 4.7.0 20111209 并且它支持线程。
在编译过程中使用 -std=c++11 选项来使用支持线程的最新标准
PS:
在我的电脑上使用 mingw 4.7.0 编译 boost 1.48 会出现错误(当尝试使用 boost::thread 时):
线程支持不可用:已使用 BOOST_DISABLE_THREADS 显式禁用它
所以我猜它在 g++ 4.7.0 中默认被禁用(在 g++ 4.6.2 中则没有)。
This answer maybe not very straight, but:
I do use g++ 4.7.0 20111209 and it has support for threads.
During compilation use -std=c++11 option to use the latest standard which supports threads
PS:
boost 1.48 compiled on my pc with mingw 4.7.0 gives an error (when trying to use boost::thread):
Threading support unavailable: it has been explicitly disabled with BOOST_DISABLE_THREADS
So I guess it was disabled by default with g++ 4.7.0 (with g++ 4.6.2 it was not).