Re: [Boost-users] [Wave] error (2) compared to 'cpp': ill-formeddirective

From: Hartmut Kaiser (hartmut.kaiser_at_[hidden])
Date: 2006-05-24 08:15:09

Hi Andreas, 

> This is a different error from the one previously reported. 
> Using the 'samples/cpp_tokens' 
> example preprocessor with the input file:
>       #define __glibcpp_function_requires(...) give the 
> following error message
>     test.C(1): error: ill formed #define directive: 
> __glibcpp_function_requires
> 
> This error was found when preprocessing the file:
>    #include <algorithm>
> where the implementation of algorithm is from gcc. The error 
> from the custom preprocessor is:
>    PATH_TO_GCC_STL_IMPLEMENTATION/bits/concept_check.h(52): 
> error: ill formed #define directive: 
> __glibcpp_function_requires It is important for us to be able 
> to preprocess this header file since we aim for gcc 
> compatibility. Is this standard preprocessor syntax? 
> Could Wave support this syntax?

This one is not a bug. Variadics and placeholders are not part of the C++98
Standard (only C99). But you can enable this in Wave by specifying the
--variadics command line argument (at least for the wave driver tool). To
enable this in cpp_tokens you need to add the following line around line
cpp_tokene.cpp:+93: