C++Talk.NET C++ language newsgroups   Archives   FAQ   Search   Memberlist   Usergroups   Register   Profile   Log in to check your private messages   Log in  malloc call not returning          C++Talk.NET Forum Index -> C Language View previous topic :: View next topic   Author Message Norbert Leister Guest Posted: Wed May 02, 2007 9:11 am    Post subject: malloc call not returning Hi NG, I've the problem, that a malloc call is not returning. <source-snip> printf("a\n"); my_pointer = (struct_pointer)malloc(struct_size); /*size 1420*/ printf("b\n"); </source-snip> I'm almost sure, that my program frees some memory, but if there is no memory, the malloc should return some NULL-pointer. The 'normal' output of the function is 'a' and 'b'. But sometimes (after a while of running), the program stops after printing the 'a'. The other threads of the programm are still responding to commands, but the one who called the malloc does not reacts. Have you somewhere had a similar problem? Compiler: gcc-3.3.3-7 on Fedora Core 2 Greeting: Norbert Back to top Ian Collins Guest Posted: Wed May 02, 2007 9:11 am    Post subject: Re: malloc call not returning Norbert Leister wrote: Quote: Hi NG, I've the problem, that a malloc call is not returning. source-snip printf("a\n"); my_pointer = (struct_pointer)malloc(struct_size); /*size 1420*/ printf("b\n"); /source-snip I'm almost sure, that my program frees some memory, but if there is no memory, the malloc should return some NULL-pointer. The 'normal' output of the function is 'a' and 'b'. But sometimes (after a while of running), the program stops after printing the 'a'. The other threads of the programm are still responding to commands, but the one who called the malloc does not reacts. Have you somewhere had a similar problem? Compiler: gcc-3.3.3-7 on Fedora Core 2 Attach your debugger and see what the application is doing. -- Ian Collins. Back to top Peter Nilsson Guest Posted: Thu May 03, 2007 9:11 am    Post subject: Re: malloc call not returning Richard Heathfield <r...@see.sig.invalid> wrote: Quote: Flash Gordon said: ... You are still using the wrong tool for the job. If you want you[r] C code analysed use a tool designed to analyse C code, not a tool designed to compile C++ code. No, Flash, he's right - if he wants more warnings, using a compiler for a different language is a great way to get them. Personally, for this purpose I can wholeheartedly recommend using a COBOL compiler. If only you had recommended that to dmr 20 years ago. -- Peter Back to top Display posts from previous: All Posts1 Day7 Days2 Weeks1 Month3 Months6 Months1 Year Oldest FirstNewest First         C++Talk.NET Forum Index -> C Language All times are GMT Page 1 of 1   Jump to: Select a forum C/C++----------------C LanguageC Language (Moderated)C++ Language (Moderated)C++ language (comp.lang.c++)C++ language, library and standards Non-English C/C++ Newsgroups----------------C++ (German)C++ (French)  You cannot post new topics in this forum You cannot reply to topics in this forum You cannot edit your posts in this forum You cannot delete your posts in this forum You cannot vote in polls in this forum Powered by phpBB © 2001, 2006 phpBB Group SEO toolkit © 2004-2006 webmedic.