C++

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Beginners - January 2014 (Page 2)

start time,end time and execution time for c++..

Start time, end time and execution time for using text file in c++.. output: Hours : Minutes : Seconds Start Time : 12 : 05 : 32 ...

[1 reply] : Giving code is not helping. What have you done so far and what do you ... (by giblit)

by gotsleep

Program won't build at home but at school it works.

The school has visual studios 2010 and i have the 2010 express version at home. My programs run fine at school but at home they won't run. Here's an example of ...

[4 replies] Last: https://stackoverflow.com/questions/10888391/error-link-fatal-error-ln... (by Zhuge)

by sky3

reading in integers from a file

for the life of me i cannot figure out why this wont just read in and output correctly. when i cout it, it wont get the third number and i end up with: 2800000 ...

[4 replies] Last: yea i just realized that lol. it was using the scientific notion for ... (by sky3)

by eonly

Function

How would I write a function that takes an array of char that holds a c string, and a char variable, and return an integer representing the number of times the ...

[1 reply] : Start with the prototype. Show what steps you know you should take, ex... (by Zhuge)

by horkavi

simplifying code and looping

Is there a better way to do this than adding output = GRADE + gradeOut; between each if statement? Also how can I loop it back to the beginning if the score i...

[6 replies] Last: Great, thanks again! I added a do/while loop that says: do { //stuf... (by horkavi)

by mr nich

Project Euler question 2

The program I'm trying to write is supposed to calculate the sum of the even Fibonacci numbers less than 4 million. My code generates the correct values of the ...

[3 replies] Last: Ah I see I was thinking he had lines 18-22 and line 16 switched. I lik... (by giblit)

by closed account EwCjE3v7

Project Euler Wrong answer

This code gives me the wrong answer after researching online for the answer. Can someone tell me why? Problem 1: If we list all the natural numbers below ...

[13 replies] Last: natural numbers You're correct Chervil. Counting from 0 has become ... (by closed account j3Rz8vqX)

by giraffe1234

User Input Help!

Below I have my code, where it checks if a number is prime, and then it overloads the -- and ++ operators to find the previous prime number and the post prime n...

[2 replies] Last: thank you!! (by giraffe1234)

by smillsey

Should I be using threads?

Hello everybody, This will be somewhat of a simple question, I am trying to write my first useful win32 program which involves opening a serial port using "c...

[1 reply] : Yes, I'd probably say use threads for this. C++11 has support for thr... (by Avilius)

by ImJustSkiddin

Function Returns Empty String Every TIme

Excuse me, Im trying to create a command line application in which I have a function that is supposed to give me what # argument was typed in. For example, cons...

[2 replies] Last: I think that Duoas has a much better answer, but I hope that this can ... (by MaxterTheTurtle)

by matt55284

user input help :L

Just started learning c++ and ive got a bit stuck :L I'm making a console application that injects a file into a process. The file name and process name are b...

[5 replies] Last: Read a tutorial on std::string , as it seems someone accidentally tau... (by LB)

by MaxterTheTurtle

Naming Conventions

Hello, This is a pretty easy question. It relates more to source/header naming conventions than variable and function naming. I was getting back into C++ and...

[1 reply] : It doesn't really matter, so long as your toolchain can tell them apar... (by Duthomhas)

by Katie Gerloff

IntelliSense errors?

I am working on a project that calculates the fare for a ferry. I have started, not even close to finishing, when I started encountering this error... This i...

[10 replies] Last: So, these need to be inside/outside of curly brackets?? (by Katie Gerloff)

by ASCII14

constructers and classes

How come when I try and display user.strength in the main() function, 0 is displayed? help! #include <iostream> #include <string> class player ...

[2 replies] Last: thanks so much, i've had this exact issue before, i don't know why i d... (by ASCII14)

by Sharan123

Regulating FPS in sdl

Why doesnt it work when it's less than .25 frames? #include "SDL.h" #include <iostream> #include "SDL_ttf.h" #include "SDL_mixer.h" #include"SDL_ima...

[2 replies] Last: Yes that was careless of me lol , it was easy to solve but i didn't kn... (by Sharan123)

by lekha

help in pointer

int x = 3; cout << x<<2*x; output of the code is 36. can anyone please explain me why is it 36.

[1 reply] : You are not using a pointer. You are using an integer variable whose v... (by Danny Toledo)

by arichardson

simple if/else statement (produces wrong value)

How do I get this if/else statement to work properly? when you enter a name between 'p' and 's' it should send you to room 2432 but no matter what value you ...

[1 reply] : Look at line 11, you are reading a space into the string before readin... (by Smac89)

by Lemony Lime

Reading in binary data and displaying as hex.

Trying to figure out how to read in data from a binary file one byte at a time, then display it in hex. From my googling, I've figured out this much, but when I...

[7 replies] Last: Yes that's probably it. What I was saying was ifstream fin( "test.da... (by maeriden)

by Sharan123

SDL_BlitSurface();

In SDL_BlitSurface(): what is the use of the second argument for example SDL_BlitSurface(image,NULL,screen,&position); SDL_BlitSurface(image,&position,s...

[2 replies] Last: Yes i have started using sdl 1.2.5 recently because there aren't tutor... (by Sharan123)

by fahrishb

separate words with hyphen

Hi so I am trying to make a function that gets a string and returns two or more different words if they are separated by hyphens. for example input = some-thin...

[4 replies] Last: What do you mean? Each word would be an element in the vector, with no... (by LB)

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