Memory management is the act of managing computer memory by allocating portions of memory to programs as well as freeing memory so that it can be re-used.

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cross-platform stdlib-only aligned allocator in C++14

I'm writing a program which uses OpenCL, and the OpenCL types are mostly over-aligned. Sometimes when using stl containers with these types, I'd get segfaults, so I tried to write my own aligned ...
5
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2answers
64 views

NamedPoint class using unique_ptr for members

After reading this old article from 2001 I have tried to implement the class from it using unique_pointer. An author's claim is that C++ is not appropriate for ...
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1answer
104 views

New malloc implementation

I've written a new malloc implementation similar to dlmalloc and was hoping for feedback on it. The goals for this library are: ...
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1answer
46 views

Serial communuication application of 24*7 having memory issue

I am having a serial port communication application using 3 serial ports DMX (m_port,m_port1,m_port2) which will run 24 *7 , so i just need to ensure memory usage doesn't go above limit with using(), ...
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5answers
274 views

Custom list to avoid out of memory exceptions

The following class is a helper to avoid OutOfMemoryException exceptions being thrown when the list is to large so that it is added onto the large objects heap. To ...
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0answers
117 views

Aligning your heterogenous uninitialized memory to make the processor happy

After learning more about memory alignment and how it can impact processor data access, I tried to find something in the standard that offers proper memory alignment inside blocks of raw memory that ...
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1answer
42 views

Basic C++ lin-alg class - conditional jump depends on uninitialized values [closed]

I am currently working on a small project in C++ to help me learn the language, but I am running into a bit of trouble unfortunately. I have written code for basic vector operations, and I want to ...
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0answers
55 views

Low performance of HTTP request using Haskell wreq

The program makes HTTP requests (checks video stream status) and calls an external program. ...
4
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2answers
107 views

C++ object pool

I am a beginner and would like to build a pool. I made some research and found out that if my software has heavy object create and delete part, I should use a pool because of performance. I made some ...
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1answer
85 views

Pointer lists for a C++ garbage collector

The problem My intention is to have a class A and class B. class B has a ...
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1answer
64 views

Longest lines using priority queue

Inspired by a comment on this question, I thought I'd exercise my C skills by implementing something like it using a priority queue. The idea is to be able to invoke the program like this: ./...
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votes
1answer
59 views

Allocating a contiguous block of memory for an array

I try to work with a contiguous block of memory, to create an array (2D) whose SIZE is not known at compile time (before c99) so no variable-length arrays are involved here. I came up with the ...
3
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1answer
53 views

Testing different implementations of malloc()

Can you help me verify my test result? I'm testing different malloc() implementations with a small program that allocates gigabytes many times: ...
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2answers
83 views

calloc, malloc, free and realloc wrappers to store the size being allocated

I'm currently building a node.js addon for libcurl. Right now I'm trying to correctly use v8::Isolate::GetCurrent()->AdjustAmountOfExternalAllocatedMemory to ...
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0answers
39 views

Fast ReadProcessMemory, save guest names that is in memory in hum text file

My code is very slow. How do I get it fast? I would also like to put a scanner on if you have a name in memory to save it in a text file. ...
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votes
2answers
160 views

RAM overhead on a compression program [closed]

In a program, the one below is attempting to codify into a translation of another file. The output is severely condensed. It works, and once I get it to decompress, then it will win award after award. ...
4
votes
3answers
191 views

Simple Pool Allocator

This is a simple pool allocator, based (to at least some degree) on a previous answer. The basic idea is pretty simple: allow a user to allocate objects of some type quickly (in relatively large ...
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votes
1answer
53 views

Lazy String splitter in C++

I created a string splitter in C++. It splits a string in a lazy fashion and makes use of forward iterators to sequentially supply the next token from the string until it runs out of tokens. ...
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2answers
71 views

Comparing vehicle crash data the previous year

I have created an automated macro which takes vehicle crash data from a .csv file and automatically creates a pivot table and charts and compares it to the previous year. The code is approximately ...
10
votes
1answer
73 views

Block allocator

I wrote this block allocator for exercise and would love to get your reviews. Main features I wanted to have: Detecting buffer overflows with canary terminator. Being able to allocate arbitrary ...
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votes
0answers
29 views

Fetching a weather report on an Arduino from a web service

I'm writing some code which is basically supposed to http get some information from my own website and parse it, which (finally) works. However, when I compile the code, it shows this: Sketch uses ...
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3answers
121 views

View programming pattern in C++ without raw pointers

I'm trying to achieve, for lack of a better term, a "view" pattern in C++. It's probably most comparable to "views" in the Database world, where one can make a query, and then perhaps aggregate the ...
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0answers
19 views

Using STORAGE macro using QSAM for input/output

I was wondering if you can help me out. I wanted to know if there is an easier way to do the following. My code works but I feel like there is a lot things going out with multiple loops and wanted to ...
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0answers
34 views

Producer/Consumer write to file

I'm concerned with the memory usage of this application. When I start it and look at it's memory usage while it's waiting for input, it's memory usage is around 13,212 K. When the application runs ...
4
votes
2answers
176 views

Memory Management Code

For a project I had to do a memory management problem without creating any custom classes or templates using the provided pool array and ...
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2answers
89 views

Delphi 2009 interface

I have this code and at the end of it, FastMM shows that there were memory leaks with all the objects of TSinc: ...
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2answers
797 views

Binary file validity in C++/C++11: checking a binary header

I have some code for checking a binary header to see if a binary file is meant to be read by a certain program, and I could use some extra eyes to review it. Assume the following ...
8
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1answer
87 views

Custom memory caching allocator in C

Over the weekend I built a fairly simple allocator: ...
3
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2answers
105 views

Hello World using Python embedded in C++, with RAII library initialization

I have written a small Hello World application that uses Python's C-API. The C library requires some functions to be called for global library (de-)initialization and the objects created by the ...
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votes
3answers
3k views

Replace space with %20

This is not very memory-efficient. Can you please suggest a better way or improvement? ...
3
votes
1answer
61 views

Reducing memory footprint when manipulating big csv file

I have CSV file which has structure like this (separated by tabulators): ...
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votes
1answer
45 views

Computing the double Integral using MonteCarlo techniques using Julia

I decided to try and learn Julia for doing scientific computing, and I decided to tackle the problem of finding $$ \int_{D_{\frac{1}{4}}} x^4 + y^2 dA $$ where \$ D_{\frac{1}{4}} \$ is the part of ...
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votes
2answers
68 views

BMP file writer

In my current project I'm writing a C function to write a BMP-File. Internally, the function is split up into three parts: write header, write info header, write data. In some of these functions I do ...
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votes
1answer
37 views

YAGOP - Yet Another Generic Object Pool

While thinking about this question it struck me that one problem of linked data structures always seems to be loss of memory locality and performance could possibly be improved if all allocated nodes ...
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0answers
36 views

Purging elements from the map if it reaches a memory size limit

I have implemented a LRU cache using ConcurrentLinkedHashMap. In the same map, I am purging events if my map reaches a particular limit as shown below. I have a ...
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0answers
65 views

C++ base class for heap awareness

I have a few classes that form a class hierarchy where some objects point to others. In the usual case, I create these object on the stack. In other cases, I need to clone these object to do some ...
3
votes
1answer
46 views

Singly linked list in pure C - follow-up

This is an update for this post. I fixed all style-issues from the comments, but still have a few questions left: Someone commented that my last post contained too many functions, which could be ...
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votes
3answers
72 views

Singly Linked List in pure C

I recently learned about linked lists and here is my first try to write one in C. I know it's a lot of code, but I hope someone takes a look. Any tips memory allocation and improvements are welcome. ...
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3answers
450 views

Implementing IDisposable

I am developing a class (in a C# MVC 5 project) that originally had a using block within a single method, and it got to be very huge after placing formatting ...
3
votes
2answers
130 views

Memory leak in Java's stack implementation

Recently I was asked to implement a stack specifically for storing 'int' type data and find memory leaks. Isn't the garbage collector responsible for releasing all the memory? What are the possible ...
6
votes
5answers
939 views

Memory-safe file-reading in C

I am trying to write a single function that will read a certain number of bytes from a C file, or the entire file, based on the arguments. I want it to be memory-safe of course, and deal with ...
7
votes
1answer
128 views

A function for block allocation

During Jonathan Blow's video where he muses about a games-focused programming language, he presents C++ code that allocates a single big block of memory and has N pointers into that block. The purpose ...
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vote
1answer
69 views

jQuery Responsive Carousel

I have developed a jQuery Responsive Carousel. When opened, the carousel in the browser and the Chrome task manager, I see that the memory usage of my page is higher than the rest of the opened tabs (...
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votes
3answers
116 views

Type-agnostic BubbleSort in C

I'm trying out different sorting algorithms for learning purposes, here I'm doing a "type-agnostic" BubbleSort. I modeled the function signature after the standart ...
4
votes
2answers
128 views

Does my Linklist implementation have memory leaks?

Are there any memory leaks in this linklist implementation.Also is the implementation correct?Can the time complexity be optimized? ...
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votes
2answers
139 views

Fixed-Size Memory Pool

I've been reading about Memory Pools since I came across them in the book Game Programming Complete 4th Edition, and I decided to try and spin my own since I didn't quite understand how the one they ...
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3answers
505 views

Stack implementation with move semantics

I have implemented a basic stack just for fun. I've just started learning about move constructors and assignment and move semantics as a whole, so I would really appreciate some feedback as to whether ...
4
votes
1answer
96 views

Iterative Red-Black Tree (dynamic stack)

I've completely reworked the previous code, posted here, so that it is a bit more correct regarding dynamic memory management, and also a bit more true to the object-oriented paradigm. ...
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votes
2answers
254 views

Memory management for Red-Black Tree

I've written this program yesterday, and I was reminded why I dreaded C++ before turning to Java: pointers and associated terms (like destructors, initializations and copy/move constructors) are ...
6
votes
1answer
333 views

Unity3D native iOS plug-in to read pedometer data

I've made a plug-in for Unity3d for iOS. The plug-in's job is to get the Pedometer data from history within a specified period of time and return that to Unity for later use. I am confident in my C# ...