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Beginners - June 2015 (Page 18)

So I want to throw out data from a file with certain values, but I have to use a sting to represent the data (most is numerical but not all), but when I try ...

[3 replies] Last: cool. and if you're username is related to the physicist it's spelt "F... (by mutexe)

by thedeveloperayush

What is the code for this algorithm ?

This is the pseudocode for this algorithm : SQUARE-MATRIX-MULTIPLY-RECURSIVE(A,B) n = A.rows let C be a new n* n matrix if n ==1 c11 = a11 ...

[no replies]

by TheToaster

How the *beep* do I make this work?

Great. So I have a simple question about making "beeping" sounds in the console. I have tried the Beep() function in the Windows API, but the sound was nonexist...

[4 replies] Last: So is there any other way ... Another Windows specific solution: Yo... (by andywestken)

by jhykima

Recursion and Arrays

It's quite interesting what is happening here and I would like to know why. After the recursion is ran 10 times, the *array = x and I have no idea why. I only w...

[7 replies] Last: [quote=Arslan7041]This can't be a coincidence. I just ran the program,... (by Peter87)

by LayMuon

Problems with solutions for C++

I am reading Lippman's C++ primer, 5th ed. I noticed the book doesn't have problems/exercises, just a few simple exercises here and there. Can anyone recommend...

[4 replies] Last: C++ books with practice exercises: Beginning C++, Ivor Horton Problem ... (by anup30)

by jhykima

Recursion

Hello! I am currently trying to understand recursion and I am not quite sure why my code only prints "4"s. I am trying to understand what is going "under the ho...

[3 replies] Last: #include<iostream> int pow(int base, int p) { if (p == 0) return 1;... (by closed account owCjz8AR)

by ncrawley

input from ./a.out <filename> command

So I am a student and I am just learning how to play with fstream and my instructor wants us to turn in a single .cpp file. the file will be implemented using ...

[1 reply] : ifstream does not have a .c_str() member. You are probably want a ... (by MiiNiPaa)

by Kreadeth

cmath pow

Hi. It's been couple of days since I'm learning c++. Me and my friend challenged each other to write a program which calculates a certain root of a number. I tr...

[1 reply] : It's problematic to compare with floating point numbers. See: 4.00000... (by coder777)

by GreenTea1984

Need help with vector array example

Hi, I'm trying to learn C++ and I am currently studying vector arrays. I am confused by which the book is teaching me how to work with vector arrays. In my book...

[1 reply] : Are all three of these values in this vector array 100? Exactly. Read... (by coder777)

by kojiro2000

HELP WITH MY BACKTRACKING OF SUDOKU

I need to use this template.. but he's stop on pos because idk why he's put my bool ENC=true (only 'true' when n==81 and i get solution) in ambient where N=7...

[no replies]

by chalupabatman

large double values from text file

Hey everyone.. I am having an issue with this program that I am working on.. Not sure if I am using something wrong and should try something different.. but gen...

[2 replies] Last: You are awesome thank you so much! (by chalupabatman)

by Scythifuge

Array of pointers - sort

Greetings, This is a three part assignment where we have to modify our code to sort netpay. The code below does sort the netpay properly. However, part thr...

[11 replies] Last: I was working on the next two modules as I am still confused by all of... (by Scythifuge)

by makkz

Inheritance

Im making a battleships game, where I need to place ships of different lengths (Aircraft Carrier = length 5, Battleship length = 4, Destroyer length = 3, Submar...

[1 reply] : it's been long time since i did inheritance and little practice i did ... (by koopey)

by LayMuon

Operator to tell the type

Is there any operator that I can act upon a variable and it will output its type? Thanks.

[3 replies] Last: thanks. (by LayMuon)

by Winsu

Nest try-catchs

I want nest some try-cacth loops...I'm not sure how It works, according to the documentatio I have read I can nest as many try-catch as I want..but I dont know ...

[8 replies] Last: And I'm not sure If what I'm saying has logic or not...but according t... (by Winsu)

by Theultigamer

Rounding Numbers - Ceil & Floor

So, hi guys, newbie programmer here, I've been working on a program that produces numbers with large decimals, but I don't want the end result to have any decim...

[3 replies] Last: Integral types cannot store fractional values. Thus, the fraction is d... (by keskiverto)

by The Fearless Hyena

How does this code find the center element in a vector?

The book I'm using tells me this code that makes an iterator point to the center element in a vector. I've been trying to figure out how it works though. int...

[4 replies] Last: @Fr0zen1 Oops - forgot about ctrl-Z But still think it's a poor form... (by andywestken)

by wrymn

Please, give some advice

Hi there, I am working on some C++ project (2D OpenGL Game Engine), and I am still learning C++ as I go, I `really don`t know what the best practices are, or ho...

[3 replies] Last: For both. Follow the "Principle of Least Privilege". Give a method o... (by Little Captain)

by Adeelpak

Coding understandings by comments

Hi I have little idea that what is going on.. But I want to make my points strong on each line Following are the code with comments in each line.. Please...

[6 replies] Last: A definition is always a declaration, but not vice versa. definition ... (by andywestken)

by TheToaster

Template Question IMPORTANT!!

I was reading my book "Professional C++ Third Edition" and they gave the following example to explain function templates. What it is is basically a function tha...

[4 replies] Last: Thank you. (by TheToaster)

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