In computer science, a pointer is a programming language data type whose value refers directly to (or "points to") another value stored elsewhere in the computer memory using its address.

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6
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1answer
81 views

Random String Generation - Base36 and optimization

This is some fairly heavily optimized C#. Aside from reading like C++ code due to all of the pointers, does this pass sanity checks, and is there any way to improve it, while keeping its speed (or ...
0
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0answers
21 views

C++: Using multimap to sort objects and change key for a specific object later [closed]

I have a list of objects. This list is traversed using an iterator (pointer) and for every object that is retrieved I assign it a random "rank" such that, each rank-object forms a std::pair. I pass ...
4
votes
1answer
60 views

Cancellable futures, interaction with throwing destructors

I'm reinventing std::future from scratch (for an upcoming talk). I'd like to incorporate as many of the latest and most likely-to-succeed proposals as possible, and ...
4
votes
1answer
49 views
0
votes
1answer
92 views

Refactor C# unsafe method [closed]

I have the following two unsafe methods that I would like to refactor: ...
4
votes
1answer
51 views

Passing variable pointer as string to another function

With Delphi 7 I need to create a TStream variable and use/free it in another part of the code. Unfortunately it cannot be passed as "normal" parameter. I created a ...
8
votes
3answers
253 views

Generic stack in C

I tried to implement a generic stack in C using void pointers and tried to keep it as simple as possible by delegating all responsibility to the caller of the ...
5
votes
2answers
90 views

Splitting string by words to new strings

Function: ...
18
votes
5answers
1k views

Inventorizing the universe

I recently started re-factoring a project I hadn't touched in many months. The original purpose was to be an inventory management system for a game I played, Ogame. In this game you play inside a ...
3
votes
2answers
57 views

Linked list insertion

I have written the code below for inserting an element at the position specified by the user. I have seen the code in multiple books, and they have always used two pointers in the function that ...
8
votes
2answers
101 views

Smart pointer or how not to leak a pointer

Wrote a couple of blog articles about smart pointers. Unique Pointer Shared Pointer Constructors for Smart Pointers So I suppose it time to get the result reviewed. This is not supposed to be a ...
3
votes
2answers
104 views

Finding the min and max of an array, using a pointer

Modify the maxmin.c program so that the max min function uses a pointer instead of an integer to keep track of the current position in the array. maxmin.c ...
4
votes
2answers
70 views

A clone_ptr<T> that does not require T to have a clone method

Here is my clone pointer template: ...
2
votes
2answers
104 views

Build a time struct for current time in UTC

I'm learning about time structs. Without assigning either in code or input routines I want the current time. Please help me refactor this, if it should be. This code just tries to make a time struct ...
4
votes
2answers
58 views

Merge Sort in Perl

I'm new to Perl and have successfully written a merge sort program. I'll paste the entire program below, but would like mostly a review of the subroutines ...
15
votes
2answers
1k views

Can I buff up your file?

Here I have a method for reading the contents of a file into a buffer and returning whether or not it is successful. Here is what I would like reviewed: Speed: Am I reading in the file as fast as ...
-2
votes
2answers
85 views
1
vote
2answers
272 views

Implementation of unique_ptr and make_unique for aligned memory

I am working on a version of std::unique_ptr and std::make_unique for aligned memory. The purpose of this is vectorization, ...
1
vote
1answer
85 views

Casting between types for shared_ptr

I'm implementing an Entity-Component-System. Basically, an entity is a wrapper around an ID, a component is just a POD struct, and a System is a class that does work on components corresponding to the ...
0
votes
2answers
66 views

C++ smart pointer class

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5
votes
1answer
85 views

Single LinkedList using smart pointers

In order to learn C++11, I propose to myself implement a simple single linked list using smart pointers. The idea was to cover the basic operations without leave any memory leak. I came up with a ...
8
votes
1answer
143 views

Implementation of a new kind of smart pointer in C++

I'm tempted to write a new kind of smart pointer which, I believe, is less intrusive than boost::intrusive_ptr and has the same memory footprint. The code for the ...
1
vote
3answers
145 views

Writing the function strend()

Due to being unable to ask a C programming language expert or advanced user in person, I'm posting this simple question about my C code. Today I was refreshing my C with exercise 5.4 of the C ...
3
votes
1answer
158 views

Remove odd valued nodes from linked list

The function remove_odd is to remove odd valued nodes (surprise!!) from the linked list head. The code is very long and cryptic but it seems to work. Please help ...
4
votes
1answer
82 views

Smart pointer mark II - my answer to C++ 11 shared_ptr

I am writing this smart pointer as a learning exercise. Any feedback would be most appreciated. Any flaws? Have I missed any test cases? smart_pointer.hpp: ...
6
votes
3answers
243 views

Reading, echoing, and returning integers in an array

I was wanting some clarification on my code, as I am new to pointers in C. I am trying to return an array from a simple function just so I can understand exactly what it is that I'm doing. Here is ...
4
votes
1answer
112 views

Truncate 160-bit output from SHA-1 to 64-bit uint64_t

I'd like to truncate 160-bit output from SHA-1 to receive a (weaker) 64-bit digest. It has been a while since I did the type of low-level C pointer arithmetic in the but-last line. Could you please ...
10
votes
3answers
1k views

Initializing and printing an array using pointers and dynamic allocation in C

I have written a code for basic array creation and printing it's values in C. I would appreciate comments on how it can be improved, and the industry standards. One issue I'm encountering is having ...
4
votes
2answers
302 views

C++ smart pointers and classes

I've started learning C++ recently and want from what I've gathered smart pointers are the way to go when storing stuff on the free store. I want to make sure I've got the basic hang of C++(11) ...
3
votes
1answer
41 views

Returning the next node

What is considered to be a good programming practice for returning value from the function? For example, if we have a function in C named ...
2
votes
1answer
86 views

Pointer handle - absolute follow-up

This is a follow-up to: Pointer handle - follow-up Pointer class/handle Please review my pointer class. ...
4
votes
2answers
83 views

Pointer handle - follow-up

This is a followup to: Pointer class/handle Please review this pointer class. ...
2
votes
1answer
76 views

Pointer class/handle

Please review my pointer class. ...
6
votes
1answer
66 views

Pointer handle - only allocates in stack

This is a pointer class of mine that I would like to have reviewed. Right now it only allocates in the stack and has no copy or move operations. ...
2
votes
2answers
160 views

Yet another smart pointer implementation for learning

I based this implementation on CountedPtr in The C++ Standard Library book by Nicolai Josuttis (page 222) and also available online here. I know that I can use the C++11 smart pointers but this is a ...
6
votes
3answers
6k views

Printing the contents of a string array using pointers

I'm currently studying C and I'm trying to just print the contents of a string array. I'm using pNames to point to the first char pointer and iterating from there. ...
2
votes
2answers
154 views

Basic myVector class raw vs smart pointer

I'm writing a myVector class for a class I'm taking. I don't believe I'm "strong" with smart pointers right now, so that's my question. This is just an excerpt ...
4
votes
4answers
257 views

Printing out all possible combination of printable ASCII 7-bit characters to stdout

This takes over 60 minutes to execute. The program is small in size, about 16kb. I am thinking that the repeated calls to printf slows it down significantly, rather ...
6
votes
4answers
5k views

Using std::unique_ptr and std::move

I'm trying out new things (on class Inproc), specifically using std::unique_ptr and ...
4
votes
0answers
153 views

Wrap function pointers in template classes

I'm working on a C++ library for Arduino and other embedded systems. I'm currently working on wrapping up function pointers and member-function pointers into two C++ template classes (function and ...
1
vote
2answers
507 views

Binary search tree with templates

I am currently attempting to become proficient in C++ and started by implementing a basic binary search tree. Most of the programming I have done is in Ada, Python and C. I would like to be able to ...
5
votes
2answers
304 views

Constructing a graph and performing a depth-first traversal

Please review the use of pointers and design in graph construction code and its depth first traversal. I haven't used smart pointers as I want to understand any issues in following implementation with ...
0
votes
2answers
87 views

Deleting values from std::vector of different types

I need to make a vector of different types and be able to delete the values (please ignore anything else but deleting the values for now). Is the next code safe to delete the values? ...
0
votes
1answer
388 views

Polymorphic template cloning class

I have a requirement of a templated clone() method which Base classes can implement through an ICloneable interface and all the ...
10
votes
2answers
566 views

Smart but simple pointers

For practice, I've implemented my own smart pointer class. It's a 'unique pointer', meaning it doesn't allow copies of itself (when copying from a into ...
2
votes
2answers
152 views

Speeding up and shortening a loop [closed]

I'm still relatively new to C++ and I've written a program that could do with being a bit shorter and faster. I use this same set of for loops many times to cycle through the whole tree of values. ...
6
votes
5answers
444 views

Custom class for a borrowed unique_ptr<T>?

In C++11, I tend to have master objects that maintain sole ownership of a collection of some children objects. Let's assume these children objects are non-copyable (for instance, ...
4
votes
1answer
2k views

Implement a string in reverse using pointers and recursion

I'm trying to reverse a string using pointers and recursion, and I send it a char array. Is this the best way, or is there a better one? ...
3
votes
3answers
260 views

Simple shared pointer

I wrote a simple shared pointer, which I think works pretty well. I would like to see your review of it. This is the header file: ...
6
votes
2answers
345 views

Layer Stack class to practice std::shared_ptr

The following three source files is to define and test a class StackLayer. While it was written in a need for scalable layer-based architecture design, it was also ...