你好,我有以下代码:
bool PinManager::insertPin(const std::string& p_pinNumber, const std::string& p_mode)
{
boost::shared_ptr<GPIOPin> pin(new GPIOPin(p_pinNumber, p_mode));
if (pin)
{
m_pinsInUse.insert(std::make_pair<std::string, boost::shared_ptr<GPIOPin> >(p_pinNumber, pin));
return true;
}
return false;
}
这段代码一直可以编译,但当我添加了-std=c++0x
标志后,它无法编译,并显示以下错误信息:
[ 42%] Building CXX object gpioaccess/CMakeFiles/gpioaccess.dir/pinmanager/pinmanager.cpp.o
/home/pi/robot_2.0/trunk/gpioaccess/pinmanager/pinmanager.cpp: In member function 'bool gpioaccess::PinManager::insertPin(const string&, const string&)':
/home/pi/robot_2.0/trunk/gpioaccess/pinmanager/pinmanager.cpp:39:101: error: no matching function for call to 'make_pair(const string&, boost::shared_ptr<gpioaccess::GPIOPin>&)'
/home/pi/robot_2.0/trunk/gpioaccess/pinmanager/pinmanager.cpp:39:101: note: candidate is:
/usr/include/c++/4.6/bits/stl_pair.h:262:5: note: template<class _T1, class _T2> std::pair<typename std::__decay_and_strip<_T1>::__type, typename std::__decay_and_strip<_T2>::__type> std::make_pair(_T1&&, _T2&&)
gpioaccess/CMakeFiles/gpioaccess.dir/build.make:77: recipe for target 'gpioaccess/CMakeFiles/gpioaccess.dir/pinmanager/pinmanager.cpp.o' failed
make[2]: *** [gpioaccess/CMakeFiles/gpioaccess.dir/pinmanager/pinmanager.cpp.o] Error 1
CMakeFiles/Makefile2:75: recipe for target 'gpioaccess/CMakeFiles/gpioaccess.dir/all' failed
make[1]: *** [gpioaccess/CMakeFiles/gpioaccess.dir/all] Error 2
Makefile:75: recipe for target 'all' failed
make: *** [all] Error 2
我做了一些调查后发现之前编译通过可能只是一个bug,但是我仍然不确定如何解决。有人能指点一下正确的方向吗?
gcc --version
的版本是gcc (Debian 4.6.3-14+rpi1) 4.6.3
make_pair
应该能够推断出参数类型,尝试删除显式的模板参数:std::make_pair(p_pinNumber, pin)
。 - melak47