error: typedef name may not be a nested-name-specifier
I am trying to do something along the lines of this answer, and struggling:
$ gcc --version
gcc (GCC) 4.2.4 (Ubuntu 4.2.4-1ubuntu4)
file.cpp:7: error: template argument 1 is invalid
file.cpp:7: error: typedef name may not be a nested-name-specifier
And the offending part of the file:
template <class R, class C, class 开发者_开发问答T0=void, class T1=void, class T2=void>
struct MemberWrap;
template <class R, class C, class T0>
struct MemberWrap<R, C, T0>{
typedef R (C::*member_t)(T0);
typedef typename boost::add_reference<typename T0>::type> TC0; // <---- offending line
MemberWrap(member_t f)
: m_wrapped(f){
}
R operator()(C* p, TC0 p0){
GILRelease guard;
return (p->*(this->m_wrapped))(p0);
}
member_t m_wrapped;
};
Drop typename
from typename T0
in
typedef typename boost::add_reference<typename T0>::type> TC0;
and probably drop the second angle bracket as well. I.e.
typedef typename boost::add_reference<T0>::type TC0;
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