a6ebdba66c
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@59704 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
84 lines
3.0 KiB
C
84 lines
3.0 KiB
C
/*
|
|
* Name: wx/cpp.h
|
|
* Purpose: Various preprocessor helpers
|
|
* Author: Vadim Zeitlin
|
|
* Created: 2006-09-30
|
|
* RCS-ID: $Id$
|
|
* Copyright: (c) 2006 Vadim Zeitlin <vadim@wxwindows.org>
|
|
* Licence: wxWindows licence
|
|
*/
|
|
|
|
/* THIS IS A C FILE, DON'T USE C++ FEATURES (IN PARTICULAR COMMENTS) IN IT */
|
|
|
|
#ifndef _WX_CPP_H_
|
|
#define _WX_CPP_H_
|
|
|
|
/* wxCONCAT works like preprocessor ## operator but also works with macros */
|
|
#define wxCONCAT_HELPER(text, line) text ## line
|
|
#define wxCONCAT(text, line) wxCONCAT_HELPER(text, line)
|
|
|
|
#define wxCONCAT3(x1, x2, x3) wxCONCAT(wxCONCAT(x1, x2), x3)
|
|
#define wxCONCAT4(x1, x2, x3, x4) wxCONCAT(wxCONCAT3(x1, x2, x3), x4)
|
|
#define wxCONCAT5(x1, x2, x3, x4, x5) wxCONCAT(wxCONCAT4(x1, x2, x3, x4), x5)
|
|
|
|
/* wxSTRINGIZE works as the preprocessor # operator but also works with macros */
|
|
#define wxSTRINGIZE_HELPER(x) #x
|
|
#define wxSTRINGIZE(x) wxSTRINGIZE_HELPER(x)
|
|
|
|
/* a Unicode-friendly version of wxSTRINGIZE_T */
|
|
#define wxSTRINGIZE_T(x) wxAPPLY_T(wxSTRINGIZE(x))
|
|
|
|
/*
|
|
Helper macros for wxMAKE_UNIQUE_NAME: normally this works by appending the
|
|
current line number to the given identifier to reduce the probability of the
|
|
conflict (it may still happen if this is used in the headers, hence you
|
|
should avoid doing it or provide unique prefixes then) but we have to do it
|
|
differently for VC++
|
|
*/
|
|
#if defined(__VISUALC__) && (__VISUALC__ >= 1300)
|
|
/*
|
|
__LINE__ handling is completely broken in VC++ when using "Edit and
|
|
Continue" (/ZI option) and results in preprocessor errors if we use it
|
|
inside the macros. Luckily VC7 has another standard macro which can be
|
|
used like this and is even better than __LINE__ because it is globally
|
|
unique.
|
|
*/
|
|
# define wxCONCAT_LINE(text) wxCONCAT(text, __COUNTER__)
|
|
#else /* normal compilers */
|
|
# define wxCONCAT_LINE(text) wxCONCAT(text, __LINE__)
|
|
#endif
|
|
|
|
/* Create a "unique" name with the given prefix */
|
|
#define wxMAKE_UNIQUE_NAME(text) wxCONCAT_LINE(text)
|
|
|
|
/*
|
|
This macro can be passed as argument to another macro when you don't have
|
|
anything to pass in fact.
|
|
*/
|
|
#define wxEMPTY_PARAMETER_VALUE /* Fake macro parameter value */
|
|
|
|
/*
|
|
Define __WXFUNCTION__ which is like standard __FUNCTION__ but defined as
|
|
NULL for the compilers which don't support the latter.
|
|
*/
|
|
#ifndef __WXFUNCTION__
|
|
/* TODO: add more compilers supporting __FUNCTION__ */
|
|
#if defined(__DMC__)
|
|
/*
|
|
__FUNCTION__ happens to be not defined within class members
|
|
http://www.digitalmars.com/drn-bin/wwwnews?c%2B%2B.beta/485
|
|
*/
|
|
#define __WXFUNCTION__ (NULL)
|
|
#elif defined(__GNUC__) || \
|
|
(defined(_MSC_VER) && _MSC_VER >= 1300) || \
|
|
defined(__FUNCTION__)
|
|
#define __WXFUNCTION__ __FUNCTION__
|
|
#else
|
|
/* still define __WXFUNCTION__ to avoid #ifdefs elsewhere */
|
|
#define __WXFUNCTION__ (NULL)
|
|
#endif
|
|
#endif /* __WXFUNCTION__ already defined */
|
|
|
|
#endif /* _WX_CPP_H_ */
|
|
|