Files
boost_preprocessor/include/boost/preprocessor/stringize.hpp
Vesa Karvonen a07e8b26b7 Minor documentation change
[SVN r12397]
2002-01-21 19:05:49 +00:00

56 lines
1.4 KiB
C++

#ifndef BOOST_PREPROCESSOR_STRINGIZE_HPP
#define BOOST_PREPROCESSOR_STRINGIZE_HPP
// Copyright (C) 2001
// Housemarque Oy
// http://www.housemarque.com
//
// Permission to copy, use, modify, sell and distribute this software is
// granted provided this copyright notice appears in all copies. This
// software is provided "as is" without express or implied warranty, and
// with no claim as to its suitability for any purpose.
// See http://www.boost.org for most recent version.
/*! \file
<a href="../../../../boost/preprocessor/stringize.hpp">Click here to see the header.</a>
*/
//! Delays the stringization of E.
/*!
For example,
<PRE>\verbatim
#define NOTE(STR)\
message(__FILE__ "(" BOOST_PP_STRINGIZE(__LINE__) ") : " STR)
// ...
#pragma NOTE("TBD!")
\endverbatim</PRE>
expands to:
<PRE>\verbatim
#pragma message("examples.cpp" "(" "20" ") : " "TBD!")
\endverbatim</PRE>
The use of BOOST_PP_STRINGIZE() above lets the PP expand the __LINE__
before stringizing it. If # would be used directly, the code would
expand to:
<PRE>\verbatim
#pragma message("examples.cpp" "(" "__LINE__" ") : " "TBD!")
\endverbatim</PRE>
*/
#define BOOST_PP_STRINGIZE(E) BOOST_PP_STRINGIZE_DELAY(E)
#ifndef DOXYGEN_SHOULD_SKIP_THIS
#define BOOST_PP_STRINGIZE_DELAY(E) #E
#endif
//! Obsolete. Use BOOST_PP_STRINGIZE().
#define BOOST_PREPROCESSOR_STRINGIZE(E) BOOST_PP_STRINGIZE(E)
#endif