Unanswered Questions
1,059 questions with no upvoted or accepted answers
23
votes
0
answers
668
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Multiplying big numbers using Karatsuba's method
The Karatsuba algorithm, first published in 1962, aims to speed up the multiplication of big numbers by reducing the number of 'single-digit-multiplications' involved.
Because of its complexity (...
- 4,773
17
votes
0
answers
1k
views
Autotools detect C++ language standard support
I have been updating my build tools to optionally use autotools (autoconfig/automake/libtool etc.).
As part of this change I have written a couple of M4 macros. This not being something I have done ...
- 85k
9
votes
0
answers
568
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Hunt the Wumpus GUI (FLTK)
I used the code from the text based hunt the wumpus game discussed here: Text based game “Hunt the Wumpus” Version 3 to create a gui Version based on excercises from PPP by Stroustrup.
For the GUI i ...
- 145k
9
votes
1
answer
386
views
Metropolis Monte Carlo Sampler in Rust
the following is an implementation of the standard Metropolis Hastings Monte Carlo sampler. You can read more about it here.
At the end I am going to give you a link to the Rust playground, so you ...
CommunityBot
- 1
8
votes
0
answers
1k
views
A simple Qt + MQTT doorbell application
So I built a house recently and didn't want to rely on "privacy-questionnable" systems like Google Home or Amazon whatever so I decided to build a doorbell system myself.
Hardware
I use a ...
- 19.5k
8
votes
0
answers
571
views
Simple, intuitive and (hopefully) safe EventDispatcher
For my own game engine I need an event system. I tried to avoid the single-huge-enum-approach for minimizing compile times.
The BasicEventListener is the (...
- 231
8
votes
0
answers
394
views
C++ constexpr trampoline
For fun, I implemented a trampoline function for C++ constexpr functions, since the recursion limit for constexpr functions is ...
- 85k
8
votes
0
answers
354
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STTCL FSM framework based on the GoF State Pattern, Part I: The basic interfaces
Preface
I have decided to let my pet project created some years ago to undergo a code review here.
The review will be broken into parts according to meta question Multiple reviews or one big review?...
CommunityBot
- 1
8
votes
0
answers
365
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.NET DLL Injector in C++
I built a DLL Injector with User-Interface.
The program lists all processes, the user chooses one of them and a DLL, and inject it.
It's my first project in C++, and I know it's not exactly C++ ...
- 145k
8
votes
0
answers
7k
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I am using boost::process to call an external process, and using stdout, stderr, and stdin to supply/retrieve data
I have some program which takes input via stdin, writes output to stdout, and errors to stderr. I would like to call that program from another program, supplying data via stdin, and capturing output/...
- 11.3k
8
votes
0
answers
179
views
Implementing Simple Diff in Rebol
I've taken a crack at implementing Simple Diff in Rebol (versions 2 and 3). Simple Diff works by finding the longest common sequence in two series, then recursively applies itself either side of this ...
- 489
7
votes
0
answers
450
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c++ std::function implementation
When I first tried to implement std::function I thought it would as easy as creating a class that holds a function pointer. Consequently, I quickly figured out that ...
- 659
7
votes
0
answers
234
views
Find an arithmetic expression near to target value
I wrote this program as an answer to Express a Number challenge on the Programming Puzzles & Code Golf site; it may be worth looking there for the context. The concept is simple (and familiar to ...
- 66.9k
7
votes
0
answers
546
views
A* Algorithm in F#
Inspired by this post I looked up A* on wikipedia and went on with my own implementation as seen below where I try to mimic the pseudocode on Wikipedia but in a recursive manner.
I would like any ...
CommunityBot
- 1
6
votes
0
answers
167
views
Efficiently generate distinct subsets which sum to a particular value
Related: Find all distinct subsets that sum to a given number
This code is supposed to efficiently generate all subsets of a list such that the subset's values sum to a particular target value. For ...
- 161