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STL Vector Corruption Across VS Projects


STL Vector Corruption Across VS Projects

By : user3851294
Date : October 17 2020, 11:12 AM
Hope that helps The problem is that library and program have been compiled with different compiler options. As the result you've got different iterators implementation but with the same signature. It is known problem and Microsoft recommends to compile several versions of statically linked libraries and link executable with appropriate one.
code :


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Heap corruption - Vector push_back

Heap corruption - Vector push_back


By : Giuseppe
Date : March 29 2020, 07:55 AM
like below fixes the issue In case getChargeRateDetails returns by reference you are trying to use a reference to a variable that is already out of scope.
Why does using an STL std::vector as a __block variable cause memory corruption?

Why does using an STL std::vector as a __block variable cause memory corruption?


By : Jesus Estrada D.
Date : March 29 2020, 07:55 AM
I hope this helps . Unless it's a typo, I see your initialization of dlist being different from the array: vector dlist(1, depth); makes a vector of length 1, not depth. This may possibly cause going out of bounds.
You can always guard against accessing vector elements out of bounds by using dlist.at(currk) instead of dlist[currk], for both reading and writing.
Memory corruption due to mismatched compiler directives in library vs. EXE projects

Memory corruption due to mismatched compiler directives in library vs. EXE projects


By : Morris
Date : March 29 2020, 07:55 AM
like below fixes the issue It seems your assessment is right on the spot. Yes, it is possible. Don't make externally visible declarations depend on preprocessing directives and you should be OK. Internal stuff may be as configurable as you want, but interfaces should be set in stone. In your case the library should export an interface and a class factory. The client should either not know whether the selected instance has an additional feature, or be able to access it only through potentially fallible interface. If it fails, it's not supported. If you do what I'm suggesting in (2) you shouln't need to. If you still want to, have a variable name that macro expands to library_options_opt1_yes_opt2_no_opt3_42_... in the library, and have the client code in the header reference it. You will have a link error in case of mismatch. Thr C++ standard specifically allows the compiler not to warn you if you do such things. It's actually not really easy for the compiler. The corresponding rule is called One Definition Rule.
Heap Corruption using cv::FlannBasedMatcher and std::vector

Heap Corruption using cv::FlannBasedMatcher and std::vector


By : user3786889
Date : March 29 2020, 07:55 AM
I think the issue was by ths following , I am developing a breast imaging features for object recognition, using FlannBasedMatcher to compute spatial histograms. , Try putting
code :
matches.reserve(size) 
std::vector segv because of an improbable corruption

std::vector segv because of an improbable corruption


By : Osot's Programming
Date : March 29 2020, 07:55 AM
I wish this helpful for you At first glance: std::string tmp(_buff); is wrong, because _buff may not be null terminated, thus reading 271275648142580811 bytes into memory.
Additionally, sendQuery's parameter is a local string, so as soon as the function exits, the string is free'd, and async_write continues to read from invalid memory, which is undefined behavior. Anything can happen.
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