I have a python application which uses postgres and works fine in a conda envirnment based on python 3.7.3. I am trying to update its conda environment to use a newer python version. I built the ne...

Obj *op = new Obj; Obj *op2 = op; delete op; delete op2; // What happens here? What's the worst that can happen when you accidentally double delete? Does it matter? Is the compiler going to throw...

As the title suggests I am new to C and have a mid-term coming up shortly. I am revising from past papers currently and a recurring theme is the double free problem. I understand that it is the pro...

I'm trying to implement the Lazy Concurrent List-based Set in C++ by using shared_ptr. My reasoning is that unreachable nodes will be automatically freed by the last shared_ptr. As per my understan...

I have two outsourced shared libraries for linux platform (no source, no document). The libraries work fine when they are linked to program separately (g++ xx.cpp lib1.so, or g++ xx.cpp lib2.so). ...

The following section of my code gives me this messege when executing * glibc detected ./a.out: double free or corruption (fasttop): 0x08e065d0 ** i have gone through the code many times but i can...

I can't figure out why I get error for the code below. The instances of object A will be pushed into a vector (vectorA.push_back(A a)) continuously. So sometimes, vectorA needs to be reallocated; t...

I have shared object A.so which statically links to libssl.a & another shared object B.so which also statically links libssl.a . A.so & B.so has symbols from libssl.a in GLOBAL scope. I c...

EDIT - added .h file I'm having difficulty trying to find the cause of a double free error. Steps taken to solve 1) Used the Zombies tool. Zombies reports that tid is being double freed 2) Set...