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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Implementation of stack using pointers
Please review my code and let me know how I can possibly improve it.
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190 views
How best to keep track of an unknown number of objects?
I have a manager class that will manage an unknown number of objects. I'm currently storing the objects in a NSMutableArray object, and when I need to find one, I ...
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Proposed solution to dangling pointers: a non-owning smart pointer
The lifetimes of various objects referring to each other are sometimes only known at runtime. For example, in a side scrolling shooter game, a HomingMissile ...
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61 views
Creating a list using a struct in C
I just got into structs and I decided to create a list using them:
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Pass pointer data across multiple functions
I would like review on the following dynamic memory allocation process and suggestions on whether there are any memory leaks. Following code is not real code in use, but I'm trying to understand ...
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1answer
37 views
getword that properly handles undersores, string constants, comments, or preprocessor control lines
Our version of getword does not properly handle underscores, string constants, comments, or preprocessor control lines. Write a better version.
This is the exercise 6-1 and can be foud on K&R ...
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C struct or pointer to struct?
I am currently using this code (and more) to deal with 2D matrices. I am not very proficient in C, so I am not quite sure, if this is a good way of doing it.
I've seen other people in similar ...
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Tail implementation in C
Write the program tail, which prints the last n lines of its input. By default, n is 10, ...
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2answers
121 views
Linked list implementation in C
I'm learning C for mainly for fun and to get a better understanding of how things work under the hood (most of my experience lies with high-level languages). I've been following quite a few books and ...
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1answer
64 views
Bidirectional map based on memory manipulation
This is a bidirectional map implementation that stores the values as pairs on the heap, and uses pointer arithmetic for efficient lookup.
codepad link, may be easier to read
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1answer
59 views
Writting day_of_month and month_day with pointers instead of array indexing
Rewrite the routines day_of_year and month_day with pointers instead of indexing.
The exercise is quite simple, this is the ...
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2answers
100 views
Optimising LinkedList class - Part 2
This is part 2. My problems are with too any pointers and with long body code in the following functions:
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2answers
88 views
Optimising a LinkedList data structure - Part 1
I have implemented a linked list. I feel I overdid it with pointers, used old standards and C++11, and I ended with too many lines of code. I will make my quotations into two parts: one for the ...
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61 views
Storing lines in an array
Rewrite readlines to store lines in an array supplied by main, rather than calling alloc() to maintain storage. How much ...
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1answer
67 views
C dynamic array and pointers
I've written an implementation of a dynamic array in C, but I'm not sure if my implementation is correct... This is what I'm worried about: if I add an element, will it remain in the collection? This ...
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1answer
62 views
Pointer version of itoa
Rewrite appropiate programs from earlier chapters and exercises with pointers instead of array indexing. Good posibilities include getline(Chapter 1 and 4), ...
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2answers
126 views
strend, function that checks the occurence of a pattern at the end of a string
Write a function strend(s, t) which returns 1 if the string t occurs at the end of ...
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4answers
577 views
Pointer version of strcat
Write a pointer version of the function strcat that we showed in Chapter 2: strcat(s, t) copies the string t to the end of ...
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1answer
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C++ class “overload” using variadic templates and wrapped function pointers
I'm using C++11 and I have the following problem (pseudo C++):
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3answers
138 views
Checking success on functions in C/C++ [closed]
I am trying to understand best practices for C\C++ functions which retrieve data but must also give success/failure information.
Which is better, or is something different all together the correct ...
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1answer
86 views
Extract code that makes class shared_ptr construct-able only
I've tried using CRTP, but the forces the class to befriend CRTP Base.
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Learning to code a graph
This is my first attempt at putting the conceptual knowledge I've gained about graphs into code. When searching for examples they all seem overly complicated, and searching for a tutorial or ...
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1answer
269 views
C++ delegate implementation with member functions
I have been implementing a delegate class with C++11 that supports class member functions. I am interested in knowing if there are any potential problems with this implementation. My main concern is ...
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0answers
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Correct implementation of a one-wire temperature probe on a 328p arduino? [closed]
I'm not sure if I've got the correct implementation of pointers here, or if they're really even necessary. This is a condensed version of my code for a one-wire temperature probe on a 328p arduino ...
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2answers
801 views
Heap implementation using pointer
I know heaps are commonly implemented by an array. But, I wanted to share my pointer implementation and have your feedback(s) :)
General idea:
I convert the index to its binary value and then trace ...
3
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1answer
118 views
list class for pointers with constant time item removal
This is a class I implemented that can be thought of as a highly specialized version of std::list<> for pointers. It provides the additional feature that the ...
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1answer
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Modifying a string by passing a pointer to a void function
Beginner here. I have two questions:
Please explain the relationship between pointers and arrays? In this tutorial, they change int c by changing ...
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Review implementation of stack by using pointers in C
After I had my code for stack implementation by array reviewed I wrote stack implementation by using pointers. Here's my code. Any suggestions for improvement are welcome.
I'll be adding updated ...
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2answers
304 views
Am I using C++ pointers and references correctly?
I am a newbie to C++ programming and am currently reading this book called Jumping to C++ by Alex Allain. I have finished the pointers chapter and I am doing the exercises at the end of the chapter.
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727 views
Simple word counter
I've decided to do this by writing a simple word counter. The app gets all the params and outputs all the unique words, each one with a counter:
"Hello world Hello" would return "Hello: 2", "world: ...
