Re: cout and cerr won't work after cygwin1.dll init from VC++
Francisco J. Royo Santas wrote: Hello I have a VC++ program that uses a Cygwin-compiled DLL. I can init cygwin1.dll but, after doing this, cout and cerr stop working. cout Message endl does not appear on the screen. I do not know exactly what happens here. The program is: cout Before endl; // Appears HMODULE cygwinDll = LoadLibrary(cygwin1.dll); void (*init)() = (void (__cdecl *)(void)) GetProcAddress(cygwinDll, cygwin_dll_init); init(); cout After endl;// Does nor appear What is going on here?? What do I have to do to have cout and cerr back normally?? Thanks and G'bye Francisco J. Royo Santas -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/ Actually I had the same problem. I am trying to write a GP/PARI - package for Python for Windows. GP/PARI is a software for numerical computation which uses cygwin. After loading cygwin python stopped to produce any output. The cure is to add tty parameter to the CYGWIN environment variable. Anton -- View this message in context: http://www.nabble.com/%22cout%22-and-%22cerr%22-won%27t-work-after-cygwin1.dll-init-from-VC%2B%2B-tf2848024.html#a13017100 Sent from the Cygwin Users mailing list archive at Nabble.com. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: cout and cerr won't work after cygwin1.dll init from VC++
I compiled the cygload package (it is supposed to be the way to load cygwin1.dll and have the 4K scratch space) under MSVC and generated msvc-cygload.exe. The execution result is: Connecting to cygwin... Warning! Stack base is 0014. padding ends at 0013FFC0. Delta is 64. Stac k variables could be overwritten! Loading cygwin1.dll... Initializing cygwin... There should be more information after the last line (I wrote lines that should appear and they do not). I DO need to use cout and cerr because the application using cygwin1.dll and my own dll depending on cywing is a command-prompt application. How can I write to the command-prompt?? Thanks and G'Bye Quoting Matthew Woehlke: Francisco J. Royo Santas wrote: I have a VC++ program that uses a Cygwin-compiled DLL. I can init cygwin1.dll but, after doing this, cout and cerr stop working. cout Message endl does not appear on the screen. I do not know exactly what happens here. The program is: /me repeats Dave's comment cout Before endl; // Appears HMODULE cygwinDll = LoadLibrary(cygwin1.dll); void (*init)() = (void (__cdecl *)(void)) GetProcAddress(cygwinDll, cygwin_dll_init); init(); cout After endl;// Does nor appear What is going on here?? What do I have to do to have cout and cerr back normally?? Does it work if you /don't/ use cout before cygwin_dll_init()? My guess would be don't expect to be able to use cout/cerr before /and/ after calling cygwin_dll_init(). This just feels like something that would not work, nor should you probably be doing it. I would think that calling cygwin_dll_init() needs to be /the very first thing you do/. In fact, doing anything with stdin/stdout/stderr (i.e. stdio too) before and after is probably a bad idea unless you know what you are doing. -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
cout and cerr won't work after cygwin1.dll init from VC++
Hello I have a VC++ program that uses a Cygwin-compiled DLL. I can init cygwin1.dll but, after doing this, cout and cerr stop working. cout Message endl does not appear on the screen. I do not know exactly what happens here. The program is: cout Before endl; // Appears HMODULE cygwinDll = LoadLibrary(cygwin1.dll); void (*init)() = (void (__cdecl *)(void)) GetProcAddress(cygwinDll, cygwin_dll_init); init(); cout After endl;// Does nor appear What is going on here?? What do I have to do to have cout and cerr back normally?? Thanks and G'bye Francisco J. Royo Santas -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
RE: cout and cerr won't work after cygwin1.dll init from VC++
On 19 December 2006 20:09, Francisco J. Royo Santas wrote: I have a VC++ program that uses a Cygwin-compiled DLL. I can init cygwin1.dll but, after doing this, cout and cerr stop working. cout Message endl does not appear on the screen. I do not know exactly what happens here. The program is: cout Before endl; // Appears HMODULE cygwinDll = LoadLibrary(cygwin1.dll); void (*init)() = (void (__cdecl *)(void)) GetProcAddress(cygwinDll, cygwin_dll_init); init(); cout After endl;// Does nor appear No, that is not the program, that is a not-very-useful non-compiling snippet. What is going on here?? What do I have to do to have cout and cerr back normally?? You probably ignored step 1. http://cygwin.com/faq/faq.programming.html#faq.programming.msvs-mingw cheers, DaveK -- Can't think of a witty .sigline today -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
Re: cout and cerr won't work after cygwin1.dll init from VC++
Francisco J. Royo Santas wrote: I have a VC++ program that uses a Cygwin-compiled DLL. I can init cygwin1.dll but, after doing this, cout and cerr stop working. cout Message endl does not appear on the screen. I do not know exactly what happens here. The program is: /me repeats Dave's comment cout Before endl; // Appears HMODULE cygwinDll = LoadLibrary(cygwin1.dll); void (*init)() = (void (__cdecl *)(void)) GetProcAddress(cygwinDll, cygwin_dll_init); init(); cout After endl;// Does nor appear What is going on here?? What do I have to do to have cout and cerr back normally?? Does it work if you /don't/ use cout before cygwin_dll_init()? My guess would be don't expect to be able to use cout/cerr before /and/ after calling cygwin_dll_init(). This just feels like something that would not work, nor should you probably be doing it. I would think that calling cygwin_dll_init() needs to be /the very first thing you do/. In fact, doing anything with stdin/stdout/stderr (i.e. stdio too) before and after is probably a bad idea unless you know what you are doing. -- Matthew This message is non-smoking -- Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple Problem reports: http://cygwin.com/problems.html Documentation: http://cygwin.com/docs.html FAQ: http://cygwin.com/faq/
