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TUTORIALS

C++ Language: Learn this versatile and powerful programming language. Includes
detailed explanations of pointers, functions, classes and templates, among
others...


REFERENCE

Description of the most important classes, functions and objects of the Standard
Language Library, with descriptive fully-functional short programs as examples.
Browse the C++ Reference


ARTICLES

User-contributed articles, organized into different categories.
You can contribute your own articles!
Browse Articles


LATEST FORUM ACTIVITY:

by JamieAl
Convert MATLAB function to C++   [General C++ Programming]
 
I have a function from a textbook:
https://people.maths.ox.ac.uk/trefethen/spectral.html Basically it calculates
the Chebyshev differentiation matrix and I hav...
Mar 14, 2024 at 8:30am2024-03-14T18:30:36.000Z
[11 replies] Last: I noticed something when I try to use the output [...] to
perform mat... (by mbozzi)

by SubZeroWins
C++ Questions (1,2,3)   [Beginners]
 
1) Why does "&myChar " act differently in 2 different contexts? [code] char*
pointer = &myChar[0]; //ALSO WORKS!!! [/code] Above, it actually return th...
Mar 14, 2024 at 6:57am2024-03-14T16:57:30.000Z
[42 replies] Last: Something to consider.... C++: Console User Input Done Right
http://... (by George P)

by JUANDENT
Cyclic dependencies - how to deal with them?   [General C++ Programming]
 
Hi, I have a class GridCtrl that delegates to GridCtrlHandler but
GridCtrlHandler must also be able to call methods on GridCtrl. I cannot have
GridCtrl.h ...
Mar 14, 2024 at 6:34am2024-03-14T16:34:41.000Z
[6 replies] Last: Heh, I created a circular dependency issue using modules and
Visual St... (by George P)

by Zaap
Threading: changing processor count does not change performances   [General C++
Programming]
 
Hi, I've been doing some multi-threading in my program. This program essentially
iterates over a dataset and for each line computes some stuff. My multi-t...
Mar 14, 2024 at 5:50am2024-03-14T15:50:31.000Z
[2 replies] Last: How long does each thread run for? If it's very short it might
not be ... (by Peter87)

by Duthomhas
Program testing works... when you’ve enabled it...   [Lounge]
 
Spent two hours trying to figure out why my X11 window wasn’t getting keyboard
focus and input. It was. ...I had just turned off all my debugging output to...
Mar 13, 2024 at 11:08am2024-03-13T21:08:25.000Z
[no replies]

by seeplus
C++ Safety in Context   [Lounge]
 
See: https://herbsutter.com/2024/03/11/safety-in-context/
Mar 13, 2024 at 11:03am2024-03-13T21:03:40.000Z
[1 reply] : I didn’t read the (very long) appendix, but it was a good rebuttal
to ... (by Duthomhas)

by JamieAl
Why is my fft function not working as expected?   [General C++ Programming]
 
Trying to take the fft of 2D array along one direction (x for example and not y)
so it's a 1D FFT of 2D array. I have done this successfully before using Eigen
...
Mar 10, 2024 at 2:48pm2024-03-11T00:48:17.000Z
[7 replies] Last: @mbozzi Thanks a lot! I think this answers my question and
gets me th... (by JamieAl)

by Zaap
vector push_back passing size from 0 to overflow   [General C++ Programming]
 
Hi, please see the following code and the associated prints. I also add the
Argument class below. Basically, it crashes the second time it goes in the loop
b...
Mar 8, 2024 at 6:18am2024-03-08T16:18:12.000Z
[2 replies] Last: What is the definition of _arguments? (by seeplus)

by BigNibs
Looking for tutor for OOP class   [Beginners]
 
Hi everyone, I dont know if this is the right channel to ask this but im
starting to fall behind pretty hard in my OOP class, I really need to catch up
on a cou...
Mar 7, 2024 at 12:03am2024-03-07T10:03:57.000Z
[2 replies] Last: For a different take on your lecture notes, have a look at:
https://ww... (by seeplus)

by spistol
Linking problem with qrcodegencpp [Linux]   [Beginners]
 
Installing a new library and future its compilation is always pain for me. I've
just installed simple lib:
https://www.nayuki.io/page/qr-code-generator-library...
Mar 6, 2024 at 10:56pm2024-03-07T08:56:28.000Z
[4 replies] Last: >> /usr/lib/x86_64-linux-gnu/libqrcodegencpp.so.1 > This one
looks lik... (by keskiverto)



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