fprintf (stderr statement is crasing
in [MFC]
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From: RaG on 23 Feb 2010 04:25 Hi, I converted code from vc6 to vc9, on vc6 environment the below statement is working fine fprintf (stderr, "Failed FormatMessage - MessageIndex = <%d>.\n", 0); but when I run this on vc9(visual studio 2008) an exception is thrown,How to handle the exception is the issue. The exception condition will occur definitely but handling that is what I need.In vc6 same code is working fine. Any one please Help it is very urgent to solve the exception.
From: Giovanni Dicanio on 23 Feb 2010 04:36 "RaG" <b.raghavender(a)gmail.com> ha scritto nel messaggio news:1b201de8-2654-46c8-9bd1-b6f850644880(a)f29g2000yqa.googlegroups.com... > fprintf (stderr, "Failed FormatMessage - MessageIndex = <%d>.\n", 0); > > but when I run this on vc9(visual studio 2008) > an exception is thrown,How to handle the exception is the issue. > The exception condition will occur definitely but handling that is > what I need.In vc6 same code is working fine. What is the exception thrown? The general way of catching exceptions in C++ is by using try/catch, i.e. try { ... code ... } catch( const std::exception & e ) { std::cerr << "*** ERROR: " << e.what() << std::endl; } Giovanni
From: RaG on 23 Feb 2010 04:58 On Feb 23, 2:36 pm, "Giovanni Dicanio" <giovanniDOTdica...(a)REMOVEMEgmail.com> wrote: > "RaG" <b.raghaven...(a)gmail.com> ha scritto nel messaggionews:1b201de8-2654-46c8-9bd1-b6f850644880(a)f29g2000yqa.googlegroups.com... > > > fprintf (stderr, "Failed FormatMessage - MessageIndex = <%d>.\n", 0); > > > but when I run this on vc9(visual studio 2008) > > an exception is thrown,How to handle the exception is the issue. > > The exception condition will occur definitely but handling that is > > what I need.In vc6 same code is working fine. > > What is the exception thrown? > > The general way of catching exceptions in C++ is by using try/catch, i.e. > > try { > ... > code > ... > } > catch( const std::exception & e ) { > std::cerr << "*** ERROR: " << e.what() << std::endl; > } > > Giovanni exception handling already there, but still the below exception is comming First-chance exception at 0x7c91b21a in unittest.exe: 0xC0000005: Access violation writing location 0x00000010.
From: Goran on 23 Feb 2010 06:00 On Feb 23, 10:25 am, RaG <b.raghaven...(a)gmail.com> wrote: > Hi, > I converted code from vc6 to vc9, on vc6 environment the below > statement is working fine > > fprintf (stderr, "Failed FormatMessage - MessageIndex = <%d>.\n", 0); > > but when I run this on vc9(visual studio 2008) > an exception is thrown,How to handle the exception is the issue. No, not really. If you "handle" the exception, your code still doesn't work ;-). I think it's better to fix the problem at the origin. I just tried, this works: int _tmain(int argc, _TCHAR* argv[]) { fprintf(stderr, "Failed FormatMessage - MessageIndex = <%d>.\n", 0); return 0; } You should provide here a working example of what's not working ;-). Alternatively, you can step into fprintf and look at what it does, or, in Debug->Exceptions, Check "Win 32 Exceptions" under thrown and debug with that. That will stop in debugger when exception is thrown. Look at stack trace and at variable values for "unusual" things. Goran.
From: Ismo Salonen on 23 Feb 2010 06:32
RaG wrote: > On Feb 23, 2:36 pm, "Giovanni Dicanio" > <giovanniDOTdica...(a)REMOVEMEgmail.com> wrote: >> "RaG" <b.raghaven...(a)gmail.com> ha scritto nel messaggionews:1b201de8-2654-46c8-9bd1-b6f850644880(a)f29g2000yqa.googlegroups.com... >> >>> fprintf (stderr, "Failed FormatMessage - MessageIndex = <%d>.\n", 0); >>> but when I run this on vc9(visual studio 2008) >>> an exception is thrown,How to handle the exception is the issue. >>> The exception condition will occur definitely but handling that is >>> what I need.In vc6 same code is working fine. >> What is the exception thrown? >> >> The general way of catching exceptions in C++ is by using try/catch, i.e. >> >> try { >> ... >> code >> ... >> } >> catch( const std::exception & e ) { >> std::cerr << "*** ERROR: " << e.what() << std::endl; >> } >> >> Giovanni > > exception handling already there, but still the below exception is > comming > First-chance exception at 0x7c91b21a in unittest.exe: 0xC0000005: > Access violation writing location 0x00000010. My crystall ball tells me that stderr is not open. Is the program a console application ? Normal windows applications need to freopen stderr themselves. ismo |