c++.wxwindows - Possibility of the bug
- W這dzimierz Skiba (16/16) Dec 07 2004 Hi!
- Arjan Knepper (4/26) Dec 07 2004 I don't make a promise, but I will look into it as soon as possible.
- Mike Wetherell (48/48) Dec 07 2004 Hi,
- W這dzimierz Skiba (17/22) Dec 08 2004 Yes, indeed, thanks! I pasted your minimal sample into our
- Mike Wetherell (4/10) Dec 09 2004 Ok, thats good :-)
- W這dzimierz Skiba (7/20) Dec 24 2004 Since there was no sign that this topic was accepted as valid bug report...
- Walter (4/7) Dec 27 2004 that
- Walter (25/28) Dec 27 2004 I've boiled that example down to this which generates the same error
- Michael Wetherell (8/10) Dec 27 2004 I think it should choose the other one. I.e. not consider the illegal
- W這dzimierz Skiba (5/17) Dec 28 2004 For interested, the answer was at
- Walter (4/20) Dec 29 2004 Ok. In the meantime, just add another overload for (char*) and it should
Hi! We had added recently some new code within wxWidgets CVS which I found to cause error with (and only with) DMC. It was little discuted in wx-dev mailing list and there is suspicion that there is bug in DMC but I'm not enough skilled to seriously confirm that myself and it is very hard to debug it down to minimal code to duplicate it trimming wxWidgets class by class so I post here in case anyone could give us a hand here. The thread about the error is available at: http://lists.wxwidgets.org/cgi-bin/ezmlm-cgi?5:sss:55259 I myself made a "-l -e" listing of the code so can provide it if it would be necessary and helpful. It's 4.729.824 bytes long (which is hardly minimal sample :-( ). The test and wxWidgets was build with command: smake /NOLOGO /F makefile.dms SHARED=0 RUNTIME_LIBS=static UNICODE=0 MONOLITHIC=1 BUILD=release USE_GUI=1 USE_OPENGL=0 USE_ODBC=0 WXUNIV=0 Thanks in advance for any help. ABX
Dec 07 2004
Arjan Knepper <arjan ask.me> I don't make a promise, but I will look into it as soon as possible. Might take a while I'm very very busy right now. Arjan W這dzimierz Skiba wrote:Hi! We had added recently some new code within wxWidgets CVS which I found to cause error with (and only with) DMC. It was little discuted in wx-dev mailing list and there is suspicion that there is bug in DMC but I'm not enough skilled to seriously confirm that myself and it is very hard to debug it down to minimal code to duplicate it trimming wxWidgets class by class so I post here in case anyone could give us a hand here. The thread about the error is available at: http://lists.wxwidgets.org/cgi-bin/ezmlm-cgi?5:sss:55259 I myself made a "-l -e" listing of the code so can provide it if it would be necessary and helpful. It's 4.729.824 bytes long (which is hardly minimal sample :-( ). The test and wxWidgets was build with command: smake /NOLOGO /F makefile.dms SHARED=0 RUNTIME_LIBS=static UNICODE=0 MONOLITHIC=1 BUILD=release USE_GUI=1 USE_OPENGL=0 USE_ODBC=0 WXUNIV=0 Thanks in advance for any help. ABX
Dec 07 2004
Hi, I'm reposting this since it didn't seem to get though, so appolgies if we end up with two copies. ABX, I've prepared a minimal example, does this demonstrate the problem on your machine too, I think maybe you are using a newer version than me? ------------------------------------------------------- Y:\>r:\dm\bin\dmc | head -1 Digital Mars Compiler Version 8.38n Y:\>type mini.cpp #include <stdio.h> #define _T(x) x typedef char wxChar; class wxFile { public: wxFile(const wxChar*) { printf("wxFile\n"); } }; class wxString { public: wxString(const wxChar*) { printf("wxString\n"); } operator const wxChar*() const { return _T(""); } }; class wxFileInputStream { public: wxFileInputStream(const wxString&) { } wxFileInputStream(wxFile&) { } }; int main() { wxFileInputStream *p = new wxFileInputStream(_T("mytext.dat")); delete p; return 0; } Y:\>r:\dm\bin\dmc mini.cpp wxFileInputStream *p = new wxFileInputStream(_T("mytext.dat")); ^ mini.cpp(27) : Warning 11: non-const reference initialized to temporary link mini,,,user32+kernel32/noi; Y:\>mini wxFile Y:\> ------------------------------------------------------- I hope this is helpful. Regards, Mike
Dec 07 2004
Mike Wetherell <mike.wetherell ntlworld.com> wrote in news:cp5dlq$2p1m$1 digitaldaemon.com:ABX, I've prepared a minimal example, does this demonstrate the problem on your machine tooYes, indeed, thanks! I pasted your minimal sample into our tests/streams/datastreamtest.cpp and run it through our building process. The error was: wxFileInputStream *p = new wxFileInputStream(_T("mytext.dat")); ^ streams\datastreamtest.cpp(27) : Error: reference must refer to same type or be const Had: char * and: wxFile&I think maybe you are using a newer version than me?I used latests DMC beta.Y:\>r:\dm\bin\dmc mini.cppPerhaps the problems is in one of the compiler flags? Complete command line wxWidgets/bakefile generated was: dmc -mn -c -odmc_msw\test_datastreamtest.obj -o -D__WXMSW__ -I.\..\include -I.\..\lib\dmc_lib\msw -w- -I. -Ar -Ae .\streams\datastreamtest.cpp ABX
Dec 08 2004
W這dzimierz Skiba wrote:Mike Wetherell <mike.wetherell ntlworld.com> wrote in news:cp5dlq$2p1m$1 digitaldaemon.com:Ok, thats good :-) Regards, MikeABX, I've prepared a minimal example, does this demonstrate the problem on your machine tooYes, indeed, thanks!
Dec 09 2004
"W這dzimierz Skiba" <abx abx.art.pl> wrote in news:cp7f9a$2pbt$1 digitaldaemon.com:Mike Wetherell <mike.wetherell ntlworld.com> wrote in news:cp5dlq$2p1m$1 digitaldaemon.com:Since there was no sign that this topic was accepted as valid bug report, Walter, could you please comfirm that it was added to your bug list or that we need to do something more for you? Thanks in advance and Merry Christmas! ABXABX, I've prepared a minimal example, does this demonstrate the problem on your machine tooYes, indeed, thanks! I pasted your minimal sample into our tests/streams/datastreamtest.cpp and run it through our building process. The error was: wxFileInputStream *p = new wxFileInputStream(_T("mytext.dat")); ^ streams\datastreamtest.cpp(27) : Error: reference must refer to same type
Dec 24 2004
"W這dzimierz Skiba" <abx abx.art.pl> wrote in message news:cqgko8$29dg$1 digitaldaemon.com...Since there was no sign that this topic was accepted as valid bug report, Walter, could you please comfirm that it was added to your bug list orthatwe need to do something more for you?Yes, it's on the list. Thanks!
Dec 27 2004
"Mike Wetherell" <mike.wetherell ntlworld.com> wrote in message news:cp5dlq$2p1m$1 digitaldaemon.com...ABX, I've prepared a minimal example, does this demonstrate the problem on your machine too, I think maybe you are using a newer version than me?I've boiled that example down to this which generates the same error message: --------------------------------------- struct wxFile { wxFile(const char*); }; struct wxString { wxString(const char*); }; struct wxFileInputStream { wxFileInputStream(const wxString&); wxFileInputStream(wxFile&); }; void test() { new wxFileInputStream("mytext.dat"); } -------------------------------------------- It looks to me like the code is wrong, i.e. which wxFileInputStream should it pick?
Dec 27 2004
Walter wrote:It looks to me like the code is wrong, i.e. which wxFileInputStream should it pick?I think it should choose the other one. I.e. not consider the illegal conversion path as one of the possibilities. I can't point to where in the standard it says DMC is wrong though. So if you tell me the standard is ambiguous then I'll believe you. OTOH it makes more sense the other way, and other compilers all do it that way. Regards, Mike
Dec 27 2004
"Walter" <newshound digitalmars.com> wrote in news:cqokq7$u8i$1 digitaldaemon.com:"Mike Wetherell" <mike.wetherell ntlworld.com> wrote in message news:cp5dlq$2p1m$1 digitaldaemon.com...For interested, the answer was at the http://lists.wxwidgets.org/cgi-bin/ezmlm-cgi?5:mss:55898 ABXABX, I've prepared a minimal example, does this demonstrate the problem on your machine too, I think maybe you are using a newer version than me?I've boiled that example down to this which generates the same error message: [cut] It looks to me like the code is wrong, i.e. which wxFileInputStream should it pick?
Dec 28 2004
"W這dzimierz Skiba" <abx abx.art.pl> wrote in message news:cqrbjd$q4k$1 digitaldaemon.com..."Walter" <newshound digitalmars.com> wrote in news:cqokq7$u8i$1 digitaldaemon.com:Ok. In the meantime, just add another overload for (char*) and it should work fine. -Walter"Mike Wetherell" <mike.wetherell ntlworld.com> wrote in message news:cp5dlq$2p1m$1 digitaldaemon.com...For interested, the answer was at the http://lists.wxwidgets.org/cgi-bin/ezmlm-cgi?5:mss:55898ABX, I've prepared a minimal example, does this demonstrate the problem on your machine too, I think maybe you are using a newer version than me?I've boiled that example down to this which generates the same error message: [cut] It looks to me like the code is wrong, i.e. which wxFileInputStream should it pick?
Dec 29 2004