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General C++ Programming - April 2017 (Page 15)

Hello there, I have a potentially stupid question. Here is a C code which creates a simple linked list with three nodes. Afterward a function called "printList"...

[4 replies] Last: You're welcome - glad it helped! (by MikeyBoy)

by Kewun

c++ expression must use a intergal or unscoped enum value

// dllmain.cpp : Defines the entry point for the DLL application. #include "stdafx.h" #include <stdlib.h> BOOL APIENTRY DllMain( HMODULE hModule, ...

[1 reply] : int ass = rand(); system("date "+ass+"-01-01"); How could it work... (by Thomas1965)

by mikeal200

request for member error

here is the error In function ‘void get_line(std::ifstream&, std::ofstream&)’: lab11new.cc:49:17: error: request for member ‘at’ in ‘line.std::__cxx...

[7 replies] Last: thats the thing i think they appear multiple times because i have to g... (by mikeal200)

by coredumped

Problem with const function

Hello++, I'm trying how make a member function const. The code compile OK if the function is not const. myclass.h: ---------- struct my_data { int iVal; ...

[2 replies] Last: Thanks! :) (by coredumped)

by Beyond Humanity

How do I write to and read the elements of THIS dynamic array of objects?

I have 3 files. 1 main, 1 Player.cpp (Which I fill through asking the user how many instances of it they want, as you can see with the dynamic array) and 1 Play...

[8 replies] Last: The size of any given block of memory is not variable -- this seems t... (by Beyond Humanity)

by ehsan96696

Recursive Minesweeper

Hello, as the title states, I am trying to code a recursive minesweeper game. I feel like I have the general idea down, but I am having trouble with implementat...

[no replies]

by tariqles

Find biggest number out of 4 numbers. Program is not working.

#include <iostream> using namespace std; int Highest(int num1, int num2, int num3, int num4); int main() { int num1, num2, num3, num4; co...

[1 reply] : #include <iostream> #include <algorithm> // return the highest of a,... (by JLBorges)

by Wu zhen hai

unique_ptr memory compress

#include <memory> #include <iostream> int main() { auto deleter = (int* ptr) { delete ptr; }; std::cout << sizeof(int*) << std::endl;//4 std::cout ...

[2 replies] Last: thanks! (by Wu zhen hai)

by HumbleAAT

MPI Problem

#include "stdafx.h" #include <mpi.h> #include <stdio.h> #include <iostream> #include <fstream> #include <string> #include <cctype> #include <cstdlib> #...

[7 replies] Last: @lastchance I was successful with my intentions. #include "stdafx.h... (by HumbleAAT)

by iosgaming700

Function call error Help!

function is: void disp_database(Part database ) { int i=0; for (i=o;i<SIZE;i++) { cout<< database .partNum << ' '; } return; } struct Part { int partNum; ...

[2 replies] Last: so i changed it to int disp_database(Part database ) im still gettin... (by iosgaming700)

by Kmpck

Image management code issue

Hi guys. Having a bit of trouble here with some code for working with images. I will first say that this does involve using OpenCV so if this is not the plac...

[1 reply] : cv::mat srcMat = cv::imread("C:/Users/Kmpok/Desktop/images/baboon200.... (by ne555)

by Mbakraa

Dequeue Is not functioning well

Hello Guys, I'm new to this awesome helpful site. I've been watching alot of tutorial on Queue array implementation and read a lot of answer. But could not find...

[1 reply] : You keep track of both front and back index so I assume you are trying... (by Peter87)

by PolyStudent45

Mistake when writing an object from another one

Hello, Here is my problem : I have 2 classes in my program. The first one builds an object A with 4 members variables. The second one builds dynamically an obj...

[13 replies] Last: Ok, I tried but it didnt work :( That's because you didn't try the c... (by dhayden)

by Golden Lizard

Is using the 'extern' keyword often bad?

I was finding myself using the extern keyword quite a lot these days (mainly from laziness). I expect it to increase the compile time since it's more work for t...

[3 replies] Last: Thank you for your answers, I just have some global control variables ... (by Golden Lizard)

by HereStretchy

Help with program

I have this program that I made but for some reason I cannot get the program to reject any number below 1. Also I want to make sure I have at least an array, lo...

[5 replies] Last: Keep in mind that this is C++, not C, so you can declare your for loop... (by goldenchicken)

by Strider32

Wrong output in function

Hello, this function(ratethegroup) is giving me the wrong outputs when entering numbers. The function receives 4 numbers, total of 3 scores and the 3 scores. Th...

[2 replies] Last: also take a look here, seems similar/same problem: http://www.cplusplu... (by gunnerfunner)

by halleyc

for loop

hi all i have been given this for loop for (int i = 1; i <= n; i++) if (i < 5 && i != 2) cout << 'X'; the question instructs that the segment sh...

[3 replies] Last: thank you! (by halleyc)

by asaifudeen

Large stack use-Coverity issue

I have used local std::stringstream in my funtion which stores huge data in it. When i run Coverity Desktop analysis, i'm getting "Large stack use-Coverity issu...

[11 replies] Last: It means that the string has a fixed length 16-byte buffer for stor... (by dhayden)

by ru12adis

Ofstream/Ifstream help

Hello all, I have finished my program, but when I try to use ofstream and ifstream in order to print my output onto a different file, I either get errors or jus...

[1 reply] : If I understood correctly, then it works on your original file, but no... (by Golden Lizard)

by JLBorges

Summary of changes between C++14 and C++17 DIS

Brief summary. Contains links to ISO documents having the details. Does not incorporate changes arising only from resolutions of defect reports. https://isoc...

[no replies]

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