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Invalid Pointer Read


Why did Harry spare Peter? Make sure you initialize all pointers to a valid address before dereferencing them. But this is not a suggested way. What are the characteristics of a quantum secure protocol? weblink

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Free() Invalid Pointer C++

Should immortal women have periods? more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed C99 removed "implicit int" for functions without a prototype. Either you have done 'delete' on something which was not an object, or something else has happened that has corrupted the memory structure, like writing outside an array.

share|improve this answer edited Dec 10 '13 at 9:16 answered Dec 10 '13 at 9:04 Anis_Stack 1,1402820 add a comment| Your Answer draft saved draft discarded Sign up or log Why would a language be undubbable by universal (machine) translator? How Bits and Bytes Work Today's Headlines 7 Weird Instances of Food That Looks Like Something Else Spending Money on Experiences, Not Things, Increases Gratitude and Altruism Why Locking Eyes During Free() Invalid Pointer Aborted (core Dumped) Also, I've looked up malloc and it seems that it does, in fact, allocate heap memory. –GraphicsMuncher Nov 30 '13 at 7:48 1 The unnecessary copy is, well, unnecessary and

All of these bugs are fatal to a program that contains them. On most systems, malloc() will indeed return "heap memory", but the standard doesn't say a word about that, so there could indeed be systems which don't have a "heap". When you say *p=12;, the program will simply try to write a 12 to whatever random location p points to. Browse other questions tagged c++ pointers runtime-error memcpy or ask your own question.

Axiom - philosophy of math How do I catch a Ditto? Free Invalid Pointer Glibc Detected How to get last part of http link in Bash? But after I run it, it says 'free(): invalid pointer: 0x0804d0f8 ***' I have read my codes several times, it seems there is no logical mistake. Thanks a lot. –user964491 Nov 30 '13 at 7:12 @user964491 (and you're welcome, but pretty please read the documentation next time!) –user529758 Nov 30 '13 at 7:13

What Is Invalid Pointer

Last edited by Arndt; June 19th, 2007 at 11:32 AM. Kiel "esperantigi" Stack Exchange? / How to "esperantize" Stack Exchange? Free() Invalid Pointer C++ But that however if you look up the stack is coming from a local variable (actually an nsCOMPtr) getter_AddRefs(). Invalid Pointer Error C++ C++ - Error with ranged for inside function Is there a way to have pi in a CSS calc?

OTOH, on these systems, we could enhance the definition of "heap" to mean the memory area where malloc() takes its memory from, and all is fine again. –glglgl Nov 30 '13 have a peek at these guys The important point is that it was not allocated by the standard allocator functions. –user529758 Nov 30 '13 at 7:14 Also, suggesting an unnecessary copy is kind of pointless. What would cause turkeys to be intelligent? Also, this is basically C code, you should use C++ facilities. –GManNickG Aug 23 '12 at 4:14 1 char* str = "John"; your compiler should be warning about a deprecated Error In Free() Invalid Pointer C++

How to Rotate and translate a figure? Stack memory lives in the live span of the function. Is there a way to have pi in a CSS calc? check over here So, you should first malloc some memory and then call free.

That is to say, only from the beginning of the block. Invalid Pointer Error In C We recommend that the developer delete all purify caches and instrumented libraries and rebuild the entire application). It's temporary space for things that shouldn't grow too big.

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Join them; it only takes a minute: Sign up Invalid pointer in C program reading file up vote 0 down vote favorite I have a strange problem when running a C There are two main types of memory you seem to be confusing - stack memory and heap memory. Not the answer you're looking for? Attempt To Free Invalid Pointer thanks a lot.

Is it unprofessional of me to play games before and after work, whilst at the office? it's better to allocate memory using malloc et then after finish using variable FREE it. But if the program is very small, someone may perhaps see the error just by looking at it. http://clockworklaw.com/invalid-pointer/invalid-pointer-ie.php I can't repro it.

Then Valgrind will be able to use that information to print source files and line numbers. –Some programmer dude Dec 10 '13 at 7:31 Program received signal SIGABRT, Aborted. The work-around is to re-build your program with the options: purify -mark-wrapped-stacks -force-rebuild $(CC) ... asked 2 years ago viewed 29987 times active 2 years ago Visit Chat Related 212How does free know how much to free?1Why does a perfectly fine free on a string cause