Beginners - C++ Forum - January 2019 (Page 15)

Find Index of Closest Value in a Vector of Struct

I have txt file with values for temperature, voltage, and sensitivity which I am reading into a vector of a struct. TEXT FILE SNIPPET Temp. Voltag...

[2 replies] Last: #include <iostream> #include <fstream> #include <sstream> #include <s... (by lastchance)

by yat89

remove_if

Hi everyone, I'm a new to c++ programming. I need some help to solve my task. I need to remove values (1 and 2) in 2d vector. I'm trying to use remove_if functi...

[11 replies] Last: Its work. Thank you @dutch for your help. (by yat89)

by Trib

prime, for, while..help

so, i have got a problem that says a number x is read, with that number, find the x'th prime number, e.g x=4, the x'th prime number will be 7 (2 is first, 3, 5,...

[6 replies] Last: Of course my code runs without error, but it is lack of generality. Ev... (by locatee)

by skrish123

find size of an object of a class

What will be the output of the following program? #include<iostream> #include<string.h> #include<stdio.h> using namespace std; class publisher { pub...

[1 reply] : What will be the output of the following program? The output is im... (by mbozzi)

by KB93

Binary Search Vector For Closest Value

Like the title says I am trying to use a binary search method to search a sorted vector for the closest given value and return its index. I have attempted to us...

[12 replies] Last: solved double Convert::convertKtomV(double value) const { auto it... (by KB93)

by cool123dude

Lucky Number Game Problem

Show your code i can help u

[1 reply] : 1 5 2 3 2 4 6 8 12 O/P - BOB (by cool123dude)

by KB93

How to Read Text File Starting at Numbers

I am trying to read this text file into three separate vectors, one for temp,voltage, and sensitivity. Temp. Voltage Sensitivity (Kelvin) ...

[9 replies] Last: You can convert to millivolts in the input function: istream& opera... (by dutch)

by d0enas

Mathematical actions C++

Hello, I'm newbie in this forum and new to programming languages... I need to somehow make a mathematical console app, but have no idea where to begin.. May...

[2 replies] Last: The program calls for a class to represent rational numbers and whole ... (by dhayden)

by powsem

Net beans optimized out

Hello every one! I use Net Beans on Arch Linux. How I turn off optimization in g++, for view values of variables? I'am trying: 1. "Project properties...

[8 replies] Last: I heave read: "if I see "<optimized out>", and don't use variable, th... (by powsem)

by Mrsoap

Simple error I need help with

I'm pretty new to this so please bear with me. I'm getting an error over the '.' in the code. What I'm trying to do is tell my Object manager class to ru...

[2 replies] Last: Hello Mrsoap, It would be better if you post the whole code as the er... (by Handy Andy)

by redfury

How do I make this shape in C++?

This is the shape that I am trying to make. Apparently, this was made by using box drawing characters. I tried using them in C++ but all I got is "?" instead of...

[3 replies] Last: Hello redfury, What I have found with VS2017 is that the IDE and the ... (by Handy Andy)

by tiank2000

mouse click

How can I create a mouse click in (graphics.h) to appear console? example: create a button (play game) if i press this button appear me console. Edit articleD...

[2 replies] Last: i use windows and i use c++ language with coode blocks compiler (by tiank2000)

by MJnoob

Checking if input is in the array already, and if its int or not

so I just started learning c++ and I am supposed to make a guessing game between 1-100 in c++ where I need to ask the player's name and store it, need to keep t...

[10 replies] Last: Hello MJnoob, oh yes, I thought you meant I have to make a header fo... (by Handy Andy)

by siavash82ir

Redirect index.php to your domain

Hello, I want to say: www.domain_com / index.php Make Reedirect 301 on: www_domain_com Now either the redirection is 301 or I can do it with a flashing mode I...

[1 reply] : So what's your C or C++ question? (by salem c)

by surfersss

recursively print character using if and while

what is the different of using while and if here? why if i use "if" it produce correct result? but "while" doesnt? thankyou!! #include <stdio.h> #inc...

[5 replies] Last: Basically this is an infinite loop: while(*k) (when *k is not NULL)... (by Grime)

by Hollowman

Array sorting feedback appreciated :)

I was doing the Pancake Glutton excercise and just started trying to do a bit more with it. I used a 2D array and wanted to sort the numbers from lowest to high...

[2 replies] Last: I used a 2d array to add another complication for me to work around. Y... (by Hollowman)

by Zero001

Copy only line user wants from a full file into other file

I am writing a c++ code for my cafe project, which READ from a full file(list of drinks 10) 1.Coca 60 2.pepsi 70 3.Banana_Shake 80 4....

[2 replies] Last: ... (by Enoizat)

by Raul4pk

Date and time as string

I want to create a string that holds today's date and another one that hold's the exact time. How can i do this ?

[1 reply] : #include <iostream> #include <iomanip> #include <string> #include <ct... (by lastchance)

by jacapiwsko

Rapid Fire

#include <iostream> #include <Windows.h> using namespace std; int main() { while(true) { if(GetAsyncKeyState(VK_LBUTTON)&0x8000) { mouse_...

[9 replies] Last: Clicked only one time. void click::loop() { //stati... (by jacapiwsko)

by sdaasdf123

Can someone explain the logic of this codes please

QStringList Para_Meters; std::string Secret_Code; QString CaptureInterval; QString MaximumCaptureTime; std::string Para...

[6 replies] Last: It's hard to detect what the semantic of the code is. There are some v... (by nuderobmonkey)

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Beginners - January 2019 (Page 15)