我正在使用带有最新TDM-Gcc标头和库的clang的最新快照版本。当编译这个(使用-std = C++ 11标志):这是不正确的使用std :: bind或编译器错误?
#include <functional>
#include <iostream>
class Foo
{
public:
void Bar(int x)
{
std::cout << x << std::endl;
}
};
int main()
{
Foo foo;
auto f = std::bind(&Foo::Bar, &foo, 5);
f();
return 0;
}
我得到这些错误:
In file included from Test.cpp:1:
C:\DevEnv\LLVM38\lib\gcc\mingw32\5.1.0\include\c++\functional:1426:7: error: static_assert failed "Wrong number of arguments for pointer-to-member"
static_assert(_Varargs::value
^ ~~~~~~~~~~~~~~~
C:\DevEnv\LLVM38\lib\gcc\mingw32\5.1.0\include\c++\functional:1440:7: note: in instantiation of template class 'std::_Bind_check_arity<void (Foo::*)(int) __attribute__((thiscall)), Foo *, int>' requested here
: _Bind_check_arity<typename decay<_Func>::type, _BoundArgs...>
^
C:\DevEnv\LLVM38\lib\gcc\mingw32\5.1.0\include\c++\functional:1461:5: note: in instantiation of template class 'std::_Bind_helper<false, void (Foo::*)(int) __attribute__((thiscall)), Foo *, int>' requested here
_Bind_helper<__is_socketlike<_Func>::value, _Func, _BoundArgs...>::type
^
Test.cpp:16:14: note: while substituting deduced template arguments into function template 'bind' [with _Func = void (Foo::*)(int) __attribute__((thiscall)), _BoundArgs = <Foo *, int>]
auto f = std::bind(&Foo::Bar, &foo, 5);
^
Test.cpp:16:14: error: no matching function for call to 'bind'
auto f = std::bind(&Foo::Bar, &foo, 5);
^~~~~~~~~
C:\DevEnv\LLVM38\lib\gcc\mingw32\5.1.0\include\c++\functional:1490:5: note: candidate template ignored: couldn't infer template argument '_Result'
bind(_Func&& __f, _BoundArgs&&... __args)
^
C:\DevEnv\LLVM38\lib\gcc\mingw32\5.1.0\include\c++\functional:1462:5: note: candidate template ignored: substitution failure [with _Func = void (Foo::*)(int) __attribute__((thiscall)), _BoundArgs = <Foo *, int>]
bind(_Func&& __f, _BoundArgs&&... __args)
^
2 errors generated.
我是滥用的std ::绑定或这是一些奇怪的编译器错误?它似乎只使用TDM Gcc就可以很好地编译。
所以我想它是一个叮咚的bug? – Fr0stBit
我不会急于致电错误,速度很快。检查你的环境,我[相信](http://ideone.com/pTM1cN)可能有东西在那里。 –
铿锵3.6.2对我来说很好。 – 5gon12eder