General C++ Programming - C++ Forum

by closed account DEhqDjzh

A weird looking statement at malloc.c

https://github.com/lattera/glibc/blob/master/malloc/malloc.c#L212 What is the purpose of that? rede...

[5 replies] Last: Just delete it from the file, and see if your code builds again afterw... (by MikeyBoy)

by philip1999

Checking the winning condition using arrays with for loops

I want to create a game (connect four) in c++ using arrays and loops. 1) First I created a 8x5 boar...

[7 replies] Last: The reason why I say my example is O(1) is because your example is exp... (by poteto)

by rcx11

error: template argument/substitution failed: mismatched types 'T (*)(V*)' and 'long double'

I'm early in my work with templates. I've gotten a few to work, so I thought I understood them. Howe...

[2 replies] Last: That was the problem. I tried including the arguments in the function ... (by rcx11)

by jvigliotta

Posting text to web API

Hello all, I am trying to Post text in JSON format to a web api but I have no clue on how to do t...

[3 replies] Last: See the comment in this example. You won't have the library, but the ... (by kbw)

by aurimas13

Solving differential equations with Monte Carlo method

Hey guys, I have been trying to solve three linear differential equations (dx/dt = -2x +2y + 2; dy/d...

[13 replies] Last: Are you absolutely sure that your teacher intended a " Monte-Carlo " (... (by lastchance)

by technologist

print variables inside printf

double a = 10; double b = 20; double c = 30; printf("\sum %d", a, " and %d", b, " is = %d", c); p...

[1 reply] : You're doing a few things wrong. And if you increase the warning level... (by tpb)

by applj

Generate non-repetitive random numbers without arrays

I'm fairly new to c++ and I'm making a random number generator program. Update: I've already solve...

[9 replies] Last: not sure how to do that without arrays so i would prefer simple loopin... (by jonnin)

by Salsa Boy

How to make multiplayer game

How do you make a multiplayer game? Are there any APIs I can use? I'm thinking of a multiplayer trap...

[6 replies] Last: or, start simple. like checkers or monopoly or something. :P I know... (by jonnin)

by mo13

Need urgent help with this - linked list

Write a C++ program that implements a linked list as an abstract data type. The program must: ...

[10 replies] Last: make sure the list is still sorted after all the deletion and addition... (by jonnin)

by iporu

Reverse Code C++

So I have this code in C++ and I have a crypted picture and the content but I only know the way it i...

[6 replies] Last: Thank you all for your replies, I was able to resolve it in the end. (by iporu)

by closed account DEhqDjzh

How to make an object must created in heap

Hello, I have a struct that manages window. What I want to do is, when user(It will be a library) wa...

[10 replies] Last: Thank you all! (by closed account DEhqDjzh)

by Jeffrey10th

Const references to literals

This is the code snippet that I found in the book C++ Primer, 5th Edition : const int &ri = 42; ...

[1 reply] : You are binding a reference to const to a temporary object of type int... (by JLBorges)

by rcx11

Error: expected nested-name-specifier before 'dn_dxn'

I may simply be too tired, so I'm not figuring this out. I'm working with templates for the first ti...

[9 replies] Last: We could use SFINAE ( std::enable_if ) https://en.cppreference.com/w/c... (by JLBorges)

by closed account DEhqDjzh

const char * problem

here is my code: char* test(const char *str) { char *chr1 = NULL; for (int i = 0; i <= strl...

[7 replies] Last: Thank you all I fixed it with your help (by closed account DEhqDjzh)

by jadj

y/n char loop c++

I was asked to do a program that calculates and displays an employee's gross pay starting from his n...

[4 replies] Last: I was keeping it overly simple as he appears to be new at it. This is... (by jonnin)

by pLearner

Need Help - Uninitialized Local Variable?

Having problem with my code I will post below. In the RPM/WPM section I used to have (LocalPlayerBas...

[6 replies] Last: tpb So does that mean I have to move RifleAmmoAddress = LocalPlayer... (by pLearner)

by javyesco

Game Console Menu Class Problem

I need to make a class menu of a game console. There should appear three options in it that are: 1...

[6 replies] Last: Your code creates the exact same result as before. No point in refacto... (by poteto)

by LOKI0000

NEED HELP-SCRIPT TO RUN AND THEN DELETE PROGRAM

HI,Please help! I want to create a script that will run program as administrator, and then it will ...

[1 reply] : Assuming Windows... look up RunOnce (registry option, runs a script on... (by Ganado)

by rendy

Bellman-Ford, read nodeFrom nodeTo weight

Hi, I saw a code of Bellman-Ford where I have to manually input everything. So I decided to try and...

[1 reply] : // int a, b, w; // file2 >> a >> b >> w; // debugging // cout << a ... (by homy18)

by fewdiefie

new placement again...

#include <iostream> int main() { int pool ; int* p1 = new(pool) int; int* p2 = new(pool) int; ...

[3 replies] Last: #include <iostream> using namespace std; int main() { int poo... (by homy18)

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