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General C++ Programming - December 2019 (Page 3)

by marhuum
C++ source code for built by Visual studio, in Mingw/msys
 
Would anyone generously guide or point out us the critical key points to successfully compile and build a C++ source code intended to be built and released perf...
[4 replies] Last: E.g. here's Windows 'zone' must be transfigure to Mingw/Msys: Notepad... (by MikeyBoy)
by obeeey
How to generate objects that don't overlap each other?
 
Hi, I'm using SDL 2.0 for my project to create retro Frogger prototype. This is what it looks like now: https://pasteboard.co/IMtCBnl.png The code for g...
[1 reply] : If two objects don't intersect then the first object must be above, be... (by dhayden)
by GabeSonny21
Comparing two dimentional array with one dimensional array
 
#include <iostream> using namespace std; int main () { int student1mark = 0, student2mark = 0, student3mark = 0, student4mark = 0, student5mark = 0, stude...
[3 replies] Last: Thank you b0ss for your help (by GabeSonny21)
by minimi3
Threads
 
Moin zusammen! In der Konsole wird nur "foo" ausgegeben. Wieso wird beides nicht "parallel" ausgegeben? (Hab ein Mehrkernprozessor) Danke Co...
[6 replies] Last: Thanks (by minimi3)
by edward6
Extracting specific data from text file (1,2)
 
Hi i have a file name LTS_IMSBR.txt and it includes the following data: User Physical Location ---------------------- Equipment ID = 172.22.5.74:29...
[23 replies] Last: Do you have fgrep on your system? $ cat x Subscriber number Terminati... (by dhayden)
by volang
Hyphens and dashes difference?
 
I have received a string from a client that looks like this: "----Code". When I search for "----Code", it doesn't result in a match. Only when I search for "Co...
[2 replies] Last: If the message is in unicode, there's tons of different dashes or hyph... (by Ganado)
by L404
modifiable lvalue
 
Hello I am trying to make 2 items inside of if statment for example I want to make this with define BEGIN POKEMON{ NAME:"PIKACHU" HP:100 } POKEMON{...
[9 replies] Last: The syntax looks very similar to JSON, is that what you're trying to e... (by Ganado)
by linuxcoding
Beginning of class array is always the same
 
I am working on a crazy eights game. I created a card class that has a Suit enum and a number for its value. I created a vector of the card types and put them...
[1 reply] : You are always trying to push back the card one beyond the end of the ... (by lastchance)
by yucecoder
Segmentation Fault (Core dumped)
 
When I try to sort 1 million values, I get segmentation fault on following code. It works with <= 100 thousand values, so I am probably missing a small detail. ...
[6 replies] Last: Creating an array that does not have a const size at compile time is i... (by George P)
by obeeey
SDL 2.0 and SDL_Rect structure
 
Hello, I'm in the middle of trying to make a simple game. I wanted to make a structure, which would contain every SDL_Rect object that needs to be displayed so...
[2 replies] Last: I don't know why I thought about structures - arrays seems easier, tha... (by obeeey)
by adam2016
Sockets ( not receiving data )
 
Hi guys I seem to be able to get a connection between the server and client but when the server tries to print out the buffer it prints and empty buffer just s...
[2 replies] Last: also I now decided to send my message which is just hello in a loop s... (by salem c)
by enriquemesa8080
How can i add simple artifical intelligence (perceptron) to my translator?
 
Hello. I am currently working on my simple translator engine. It translates perefctly replacing words from english to spanish, in a one-to-one relation. I also ...
[1 reply] : I expect your help Ironic, isn't it? This sentence was probably lost ... (by Ganado)
by enriquemesa8080
A little question: Inside Github and Gitlab is possible to do the same as Git in desktop??
 
Hello. I am a programmer who is building apps more bigger in files and complexity. I expect to release a simple app on internet, and test abilities of Git to ha...
[2 replies] Last: Thanks for your help. Well, i will use it (by enriquemesa8080)
by colt
OpenGL: No triangle, only background (shader problem?)
 
Hello. I recently tried to execute a simple OGL code that should generate a red triangle over a green/blue background. The issue is that only the background is ...
[4 replies] Last: I can take a closer look later, but when I ran your program with the i... (by Ganado)
by woohyeon
_aligned_malloc is always better than malloc?
 
I heard _aligned_malloc allocate in memory without memory fragmentation. but malloc can make a memory fragmentation. because actually malloc does not always a...
[9 replies] Last: Yeah, really. (by kbw)
by SOURABH PRAKASH PATI
Runtime error (Heap-buffer-overflow)
 
Question was to remove duplicates from a vector in place. Here is my code:- class Solution { public: int removeDuplicates(vector<int>& nums) { if(...
[6 replies] Last: On the subject of rolling ones own, and drifiting off topic, I once fo... (by Repeater)
by volang
Static const only created once?
 
void xz() { static const vector <string> find = {"val", "val2"}; } I dont want to create the variable "find" all over again every time I call this function....
[10 replies] Last: The overhead of using std::string would be quite irrelevant here; th... (by JLBorges)
by ap123
C++
 
Can anyone explain this to me? #include <iostream> #include <cmath> using namespace std; int main(){ int i = 0; while(i<10){ i=i*2; cout << ...
[3 replies] Last: It might help you understand what's happening if you also print the va... (by dhayden)
by cppmatt
Error when indexing into array
 
Hello, I assume this is simple to fix but I cannot get there. The expression: crd[(int)time/dtime] i is of type int and both time and dtime are of type r...
[2 replies] Last: That did it! Thanks! (by cppmatt)
by cppmatt
Read file into 2D array
 
Hello, I am trying to read the contents of a text file into a 2D array in a macro and this attempt crashes my program. Where am I going wrong? int Nts = 4; ...
[8 replies] Last: Thanks, dutch! (by cppmatt)
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