Error C2061: syntax error : identifier 'buffer' when compiling algparam.h - c++

Question

I'm having the same error as Crypto++ giving a compiler error in algparam.h when compiling a game using Crypto++. The error is:
Error C2061: syntax error : identifier 'buffer' (at line 397)
Here is the code. It starts on line 390 an ends at line 411.
#if defined(DEBUG_NEW) && (_MSC_VER >= 1300)
# pragma push_macro("new")
# undef new
#endif
void MoveInto(void *buffer) const
{
AlgorithmParametersTemplate<T>* p = new(buffer) AlgorithmParametersTemplate<T>(*this);
CRYPTOPP_UNUSED(p); // silence warning
}
#if defined(DEBUG_NEW) && (_MSC_VER >= 1300)
# pragma pop_macro("new")
#endif
protected:
T m_value;
};
CRYPTOPP_DLL_TEMPLATE_CLASS AlgorithmParametersTemplate<bool>;
CRYPTOPP_DLL_TEMPLATE_CLASS AlgorithmParametersTemplate<int>;
CRYPTOPP_DLL_TEMPLATE_CLASS AlgorithmParametersTemplate<ConstByteArrayParameter>;
What is the problem and how do I fix it?
Here are the libraries I use:
boost 1.67 (tried 1.63 too)
sqlapi++
camp
mysqlcppconns
Here is the error message:
1>c:\local\cryptopp\algparam.h(397): error C2061: syntax error: identifier 'buffer'
1>c:\local\cryptopp\algparam.h(396): note: while compiling class template member function 'void CryptoPP::AlgorithmParametersTemplate<CryptoPP::ConstByteArrayParameter>::MoveInto(void *) const'
1>c:\local\cryptopp\algparam.h(411): note: see reference to class template instantiation 'CryptoPP::AlgorithmParametersTemplate<CryptoPP::ConstByteArrayParameter>' being compiled

Answer 1

Here is the function you are having trouble with from algparam.h:
395 void MoveInto(void *buffer) const
396 {
397 AlgorithmParametersTemplate<T>* p = new(buffer) AlgorithmParametersTemplate<T>(*this);
398 CRYPTOPP_UNUSED(p); // silence warning
399 }
I suspect one of the other libraries you are using is messing with the definition on new.
I believe you need to compile the source file but instead of producing an object file, you need to use either /P (Preprocess to a File) or /E (Preprocess to stdout). Once the file is processed take a look at the definition of new. From there work back to the library that is changing it.
In the comments you said you also use:
boost 1.67 (tried 1.63 too)
sqlapi++
camp
mysqlcppconns
Boost does some unusual things at times, and I would suspect boost as the problem.