[Solved] where in memory are this variables stored on c? [closed]

global variables ——-> data static variables ——-> data constant data types —–> code and/or data. Consider string literals for a situation when a constant itself would be stored in the data segment, and references to it would be embedded in the code local variables(declared and defined in functions) ——–> stack variables declared and defined in … Read more

[Solved] How to release memory in objective-c?

For screenshot #2 it looks like you’re not releasing the CGImageRef object. For this, to clean this up you should use: CGImageRelease(image); …when you’re done using the CGImageRef. More info on this (and how it differs from CFRelease) can be found at this question: Releasing CGImage (CGImageRef) Mind you, even if you’re using ARC you … Read more

[Solved] How ‘random’ is allocation of memory when I say “new Integer” in Java?

What algorithms are used? Java uses TLAB (Thread Local Allocation Buffers) for “normal” sized objects. This means each thread grab some Eden space and turns this grab of memory into individual objects. Thus small objects are typically sequential in memory for that thread, except if a new chunk of memory needs to be grabbed. Large … Read more

[Solved] Is there any code snippet demonstrate the harm of memory leak or fogeting free memory malloced [closed]

Okay I will explain the problem. Computers has limited memory ( modern personal one has about 8 Gigabytes). Operating systems and apps need the memory so their code can be loaded into it and executed by the CPU. Modern systems split the memory into equally sized chunks called pages, the actual page size differs from … Read more

[Solved] Proper use of memory with dynamic array lengths in c++

I’m not sure what you mean by “correct”; your code is not correct at least in the sense mentione by @SamVarshavchik, and which a compiler will tell you about: a.cpp: In function ‘int getFifoData(unsigned char*)’: a.cpp:20:29: warning: ISO C++ forbids variable length array ‘tBuff’ [-Wvla] uint8_t tBuff[txBuf.size()]; If you want to understand why C++ has … Read more

[Solved] Error in dynamic allocation in C++ [closed]

You should allocate an array of chars, like so: char *CopyOf(const char *str) { char *copy = new char[strlen(str) + 1]; strcpy(copy, str); return copy; } Note that I used brackets, not parentheses. What you were doing with parentheses was initializing a single new char with the value strlen(str) + 1. Then you overran the … Read more