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Re: ambiguous overload for operator [] on Cygwin_X86-64
- From: "Yaakov (Cygwin/X)" <yselkowitz at users dot sourceforge dot net>
- To: cygwin at cygwin dot com
- Date: Thu, 24 Apr 2014 14:48:02 -0500
- Subject: Re: ambiguous overload for operator [] on Cygwin_X86-64
- Authentication-results: sourceware.org; auth=none
- References: <510697 dot 35308 dot qm at web101119 dot mail dot kks dot yahoo dot co dot jp>
On 2014-04-23 22:15, Tatsuro MATSUOKA wrote:
I tried to build wxWidgets-3.0.0 on Cygwin.
For Cygwin x86, the build was successful.
However, on Cygwin x86_64, the build failed at compling a cpp source file (src/common/appbase.cpp).
./include/wx/filename.h: In static member function 'static wxUniChar wxFileName::GetPathSeparator(wxPathFormat)':
./include/wx/filename.h:473:43: error: ambiguous overload for 'operator[]' (operand types are 'wxString' and 'unsigned int')
{ return GetPathSeparators(format)[0u]; }
The code "(format)[0u]" seemed to be accepted g++-4.8.2 on Cygwin x86_64.
What the difference of g++ between that of Cygwin x86 and that of Cygwin x86_64?
wxWidgets requires several patches to build and/or run correctly on
Cygwin/X. I haven't looked at 3.0 yet, but for 2.8 this issue is fixed
in my 2.8.12-cygwin64.patch:
http://sourceforge.net/p/cygwin-ports/wxWidgets2.8/
Yaakov
Cygwin/X
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