d7a640933d
This is not really an option as building requires it to be 1, so don't make it one in setup.h/configure/cmake and just hardcode it as 1 for compatibility. Closes #18558.
270 lines
8.6 KiB
C
270 lines
8.6 KiB
C
/*
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* Name: wx/chartype.h
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* Purpose: Declarations of wxChar and related types
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* Author: Joel Farley, Ove Kåven
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* Modified by: Vadim Zeitlin, Robert Roebling, Ron Lee
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* Created: 1998/06/12
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* Copyright: (c) 1998-2006 wxWidgets dev team
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* Licence: wxWindows licence
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*/
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/* THIS IS A C FILE, DON'T USE C++ FEATURES (IN PARTICULAR COMMENTS) IN IT */
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#ifndef _WX_WXCHARTYPE_H_
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#define _WX_WXCHARTYPE_H_
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/*
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wx/defs.h indirectly includes this file, so we can't include it here,
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include just its subset which defines SIZEOF_WCHAR_T that is used here
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(under Unix it's in configure-generated setup.h, so including wx/platform.h
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would have been enough, but this is not the case under other platforms).
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*/
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#include "wx/types.h"
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/* This is kept only for backwards compatibility, in case some application code
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checks for it. It's always 1 and can't be changed. */
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#define wxUSE_WCHAR_T 1
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/*
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non Unix compilers which do have wchar.h (but not tchar.h which is included
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below and which includes wchar.h anyhow).
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Actually MinGW has tchar.h, but it does not include wchar.h
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*/
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#if defined(__MINGW32__)
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#ifndef HAVE_WCHAR_H
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#define HAVE_WCHAR_H
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#endif
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#endif
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#ifdef HAVE_WCHAR_H
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/* the current (as of Nov 2002) version of cygwin has a bug in its */
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/* wchar.h -- there is no extern "C" around the declarations in it */
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/* and this results in linking errors later; also, at least on some */
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/* Cygwin versions, wchar.h requires sys/types.h */
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#ifdef __CYGWIN__
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#include <sys/types.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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#endif /* Cygwin */
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#include <wchar.h>
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#if defined(__CYGWIN__) && defined(__cplusplus)
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}
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#endif /* Cygwin and C++ */
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/* the current (as of Mar 2014) version of Android (up to api level 19) */
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/* doesn't include some declarations (wscdup, wcslen, wcscasecmp, etc.) */
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/* (moved out from __CYGWIN__ block) */
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#if defined(__WXQT__) && !defined(wcsdup) && defined(__ANDROID__)
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#ifdef __cplusplus
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extern "C" {
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#endif
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extern wchar_t *wcsdup(const wchar_t *);
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extern size_t wcslen (const wchar_t *);
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extern size_t wcsnlen (const wchar_t *, size_t );
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extern int wcscasecmp (const wchar_t *, const wchar_t *);
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extern int wcsncasecmp (const wchar_t *, const wchar_t *, size_t);
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#ifdef __cplusplus
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}
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#endif
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#endif /* Android */
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#elif defined(HAVE_WCSTR_H)
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/* old compilers have relevant declarations here */
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#include <wcstr.h>
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#elif defined(__FreeBSD__) || defined(__DARWIN__)
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/* include stdlib.h for wchar_t */
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#include <stdlib.h>
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#endif /* HAVE_WCHAR_H */
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#ifdef HAVE_WIDEC_H
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#include <widec.h>
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#endif
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/* -------------------------------------------------------------------------- */
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/* define wxHAVE_TCHAR_SUPPORT for the compilers which support the TCHAR type */
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/* mapped to either char or wchar_t depending on the ASCII/Unicode mode and */
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/* have the function mapping _tfoo() -> foo() or wfoo() */
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/* -------------------------------------------------------------------------- */
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/* VC++ and BC++ starting with 5.2 have TCHAR support */
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#ifdef __VISUALC__
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#define wxHAVE_TCHAR_SUPPORT
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#elif defined(__BORLANDC__) && (__BORLANDC__ >= 0x520)
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#define wxHAVE_TCHAR_SUPPORT
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#include <ctype.h>
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#elif defined(__MINGW32__)
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#define wxHAVE_TCHAR_SUPPORT
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#include <stddef.h>
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#include <string.h>
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#include <ctype.h>
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#endif /* compilers with (good) TCHAR support */
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#ifdef wxHAVE_TCHAR_SUPPORT
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/* get TCHAR definition if we've got it */
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#include <tchar.h>
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#endif /* wxHAVE_TCHAR_SUPPORT */
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/* ------------------------------------------------------------------------- */
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/* define wxChar type */
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/* ------------------------------------------------------------------------- */
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/* TODO: define wxCharInt to be equal to either int or wint_t? */
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#if !wxUSE_UNICODE
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typedef char wxChar;
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typedef signed char wxSChar;
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typedef unsigned char wxUChar;
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#else
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/* VZ: note that VC++ defines _T[SU]CHAR simply as wchar_t and not as */
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/* signed/unsigned version of it which (a) makes sense to me (unlike */
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/* char wchar_t is always unsigned) and (b) was how the previous */
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/* definitions worked so keep it like this */
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typedef wchar_t wxChar;
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typedef wchar_t wxSChar;
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typedef wchar_t wxUChar;
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#endif /* ASCII/Unicode */
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/* ------------------------------------------------------------------------- */
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/* define wxStringCharType */
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/* ------------------------------------------------------------------------- */
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/* depending on the platform, Unicode build can either store wxStrings as
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wchar_t* or UTF-8 encoded char*: */
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#if wxUSE_UNICODE
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/* FIXME-UTF8: what would be better place for this? */
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#if defined(wxUSE_UTF8_LOCALE_ONLY) && !defined(wxUSE_UNICODE_UTF8)
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#error "wxUSE_UTF8_LOCALE_ONLY only makes sense with wxUSE_UNICODE_UTF8"
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#endif
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#ifndef wxUSE_UTF8_LOCALE_ONLY
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#define wxUSE_UTF8_LOCALE_ONLY 0
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#endif
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#ifndef wxUSE_UNICODE_UTF8
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#define wxUSE_UNICODE_UTF8 0
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#endif
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#if wxUSE_UNICODE_UTF8
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#define wxUSE_UNICODE_WCHAR 0
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#else
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#define wxUSE_UNICODE_WCHAR 1
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#endif
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#else
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#define wxUSE_UNICODE_WCHAR 0
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#define wxUSE_UNICODE_UTF8 0
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#define wxUSE_UTF8_LOCALE_ONLY 0
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#endif
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#ifndef SIZEOF_WCHAR_T
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#error "SIZEOF_WCHAR_T must be defined before including this file in wx/defs.h"
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#endif
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#if wxUSE_UNICODE_WCHAR && SIZEOF_WCHAR_T == 2
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#define wxUSE_UNICODE_UTF16 1
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#else
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#define wxUSE_UNICODE_UTF16 0
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#endif
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/* define char type used by wxString internal representation: */
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#if wxUSE_UNICODE_WCHAR
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typedef wchar_t wxStringCharType;
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#else /* wxUSE_UNICODE_UTF8 || ANSI */
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typedef char wxStringCharType;
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#endif
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/* ------------------------------------------------------------------------- */
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/* define wxT() and related macros */
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/* ------------------------------------------------------------------------- */
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/* BSD systems define _T() to be something different in ctype.h, override it */
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#if defined(__FreeBSD__) || defined(__DARWIN__)
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#include <ctype.h>
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#undef _T
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#endif
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/*
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wxT ("wx text") macro turns a literal string constant into a wide char
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constant. It is mostly unnecessary with wx 2.9 but defined for
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compatibility.
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*/
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#ifndef wxT
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#if !wxUSE_UNICODE
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#define wxT(x) x
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#else /* Unicode */
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/*
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Notice that we use an intermediate macro to allow x to be expanded
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if it's a macro itself.
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*/
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#ifndef wxCOMPILER_BROKEN_CONCAT_OPER
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#define wxT(x) wxCONCAT_HELPER(L, x)
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#else
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#define wxT(x) wxPREPEND_L(x)
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#endif
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#endif /* ASCII/Unicode */
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#endif /* !defined(wxT) */
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/*
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wxT_2 exists only for compatibility with wx 2.x and is the same as wxT() in
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that version but nothing in the newer ones.
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*/
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#define wxT_2(x) x
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/*
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wxS ("wx string") macro can be used to create literals using the same
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representation as wxString does internally, i.e. wchar_t in Unicode build
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under Windows or char in UTF-8-based Unicode builds and (deprecated) ANSI
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builds everywhere (see wxStringCharType definition above).
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*/
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#if wxUSE_UNICODE_WCHAR
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/*
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As above with wxT(), wxS() argument is expanded if it's a macro.
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*/
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#ifndef wxCOMPILER_BROKEN_CONCAT_OPER
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#define wxS(x) wxCONCAT_HELPER(L, x)
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#else
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#define wxS(x) wxPREPEND_L(x)
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#endif
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#else /* wxUSE_UNICODE_UTF8 || ANSI */
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#define wxS(x) x
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#endif
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/*
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_T() is a synonym for wxT() familiar to Windows programmers. As this macro
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has even higher risk of conflicting with system headers, its use is
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discouraged and you may predefine wxNO__T to disable it. Additionally, we
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do it ourselves for Sun CC which is known to use it in its standard headers
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(see #10660).
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*/
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#if defined(__SUNPRO_C) || defined(__SUNPRO_CC)
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#ifndef wxNO__T
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#define wxNO__T
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#endif
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#endif
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#if !defined(_T) && !defined(wxNO__T)
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#define _T(x) wxT(x)
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#endif
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/* a helper macro allowing to make another macro Unicode-friendly, see below */
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#define wxAPPLY_T(x) wxT(x)
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/* Unicode-friendly __FILE__, __DATE__ and __TIME__ analogs */
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#ifndef __TFILE__
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#define __TFILE__ wxAPPLY_T(__FILE__)
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#endif
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#ifndef __TDATE__
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#define __TDATE__ wxAPPLY_T(__DATE__)
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#endif
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#ifndef __TTIME__
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#define __TTIME__ wxAPPLY_T(__TIME__)
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#endif
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#endif /* _WX_WXCHARTYPE_H_ */
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