All Questions
30 questions
14
votes
5
answers
2k
views
I implemented FFT in C
I wrote Cooley-Tukey's FFT algorithm in C. And I want to know how safe is this code? Is it just trash? How can I make it more memory safe?
...
- 181
5
votes
3
answers
384
views
Implementation of arrays that store their size
In this code I implemented arrays that store their own size before the first element. To access it you need to go back exactly sizeof(size_t) bytes back. To free it,...
- 157
3
votes
2
answers
160
views
Todo List app using C
I just learned to deal with pointers and memory allocation stuff. Using that, I built a todo list app, and it works as far as I tested it.
I didn't account for many user errors, so any suggestion to ...
2
votes
2
answers
292
views
Optimizing Subarray Removal: Can the Removal Process be Enhanced for Better Efficiency?
The only requirement is that it has to be done by pointers:
And it returns the amount of removed numbers because of the way of output that is set in the main.
The function, using exclusively pointer ...
- 41
2
votes
0
answers
63
views
Reusable storage for array of objects V4
Here is a thirdfollow up on Reusable storage for array of objects, Reusable storage for array of objects V2 and Reusable storage for array of objects V3, taking into account the provided answers.
The ...
- 337
1
vote
1
answer
64
views
Reusable storage for array of objects V3
Here is a second follow up on Reusable storage for array of objects and Reusable storage for array of objects V2, taking into account the provided answers.
The following code should be compliant at ...
- 337
3
votes
1
answer
77
views
Reusable storage for array of objects V2
Here is a follow up on Reusable storage for array of objects, taking into account the provided answers.
The following code should be compliant at least with gcc, <...
- 337
4
votes
2
answers
539
views
Reusable storage for array of objects
My goal is to have a memory pool non-template class that is used to store arrays of objects.
The same memory pool object must be reusable for a different array (difference size, different type and/or ...
- 337
5
votes
1
answer
1k
views
Dynamic array type using void pointers C
I made my own dynamic array type using void pointers. I'd like to know what you think of my implementation. void pointers are nice but I fear they may be inefficient. The compiler cannot tell what ...
- 175
6
votes
6
answers
10k
views
Left Shift/ Right Shift an array in C
I am trying to implement a Left shift/ Right Shift on arrays.
I was able to accomplish this using double loops.
Can the efficiency be improved?
This is the working code for LeftShift/RightShift which ...
- 171
5
votes
3
answers
1k
views
FizzBuzz, but with provided start and end of sequence, results stored in array, and a separate function to convert integers to strings
To learn C, I'm doing the traditional FizzBuzz challenge with extra restrictions:
The start and end of sequence is provided by the user
Instead of directly printing the results, the results must be ...
- 771
-1
votes
1
answer
393
views
Scanning multiple strings in one line to a pointers array in C [closed]
I'm trying to write a code for a function that takes an empty array of pointers and its length n.
And scans n strings of max length of MAX_LEN (a defined constant) until a new line is given by the ...
- 171
2
votes
1
answer
153
views
A heap-allocated texture class for a console renderer
I am working on a console renderer and I want a heap-allocated dynamic texture class. Since I am quite new to C++, I just want to check the memory management, if I destroy all pointers correctly etc.
...
- 43
3
votes
3
answers
296
views
Swapping int with string using getchar() and putchar()
I wrote code that replaces integers from 0 to 3 with strings. I was only allowed to use getchar() and putchar(). If the input is ...
- 73
2
votes
1
answer
211
views
Multi-purpose generic pointer array with optional type-checking
I've been using this data structure in my projects for a while and finally decided to clean it up a bit and publish it online, but first I'm posting it here for code review. (EDIT: It has now been ...
- 233