a68db909f0
As all ports use the same CRT, it makes more sense to check for Darwin, rather than wxOSX, in wxEnsureLocaleIsCompatibleWithCRT(), as other ports such as wxGTK would also be affected by this problem if they were to be used under macOS.
67 lines
2 KiB
C++
67 lines
2 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/private/localeset.h
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// Purpose: Define helper wxLocaleSetter class.
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// Author: Vadim Zeitlin
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// Created: 2021-08-03 (extracted from tests/testprec.h)
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// Copyright: (c) 2021 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_PRIVATE_LOCALESET_H_
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#define _WX_PRIVATE_LOCALESET_H_
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#include "wx/crt.h" // wxStrdupA()
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#include <locale.h>
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// Helper class setting the locale to the given one for its lifetime.
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class wxLocaleSetter
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{
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public:
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wxLocaleSetter(const char *loc)
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: m_locOld(wxStrdupA(setlocale(LC_ALL, nullptr)))
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{
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setlocale(LC_ALL, loc);
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}
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~wxLocaleSetter()
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{
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setlocale(LC_ALL, m_locOld);
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free(m_locOld);
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}
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private:
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char * const m_locOld;
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wxDECLARE_NO_COPY_CLASS(wxLocaleSetter);
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};
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// An even simpler helper for setting the locale to "C" one during its lifetime.
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class wxCLocaleSetter : private wxLocaleSetter
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{
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public:
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wxCLocaleSetter() : wxLocaleSetter("C") { }
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private:
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wxDECLARE_NO_COPY_CLASS(wxCLocaleSetter);
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};
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// This function must be called on program startup and after changing
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// locale to ensure LC_CTYPE is set correctly under macOS (it does nothing
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// under the other platforms currently).
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inline void wxEnsureLocaleIsCompatibleWithCRT()
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{
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#if defined(__DARWIN__)
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// In OS X and iOS, wchar_t CRT functions convert to char* and fail under
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// some locales. The safest fix is to set LC_CTYPE to UTF-8 to ensure that
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// they can handle any input.
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//
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// Note that this must be done for any app, Cocoa or console, whether or
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// not it uses wxLocale.
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//
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// See https://stackoverflow.com/questions/11713745/why-does-the-printf-family-of-functions-care-about-locale
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setlocale(LC_CTYPE, "UTF-8");
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#endif // defined(__DARWIN__)
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}
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#endif // _WX_PRIVATE_LOCALESET_H_
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