Beginners - C++ Forum - February 2015 (Page 49)

Hi, im reading Cplusplus tutorials and i dont fully understand why does the new definition of operator+ for adding vectors needs only one parameter and not two ...

[4 replies] Last: Thanks! your explanation help me a lot. (by Fedeb)

by h4ever

What design to choose when dealing with images? Interlacing

Hi. I am staring to learn how to use libpng, libjpeg and libjpeg-turbo libraries. I have noticed they use common style: First we declare some basic pointers ...

[no replies]

by roman5555

Accessing a pointer object member variable

Hello, I am wondering what is the difference between ptr->age = 11; and (*ptr).age = 11; using the class class person { public:...

[2 replies] Last: As LB said, the only difference is what keys you press. Standard defin... (by MiiNiPaa)

by krislox

Function calling in another function help

I'm making a guessing game where the program has to guess the user's number, so it's kinda backwards than some of the guessing games I've seen. I'm having troub...

[1 reply] : Why the midpoints? Shouldn't the logic be: Choose guess from [low-hig... (by keskiverto)

by etrusks

Why isnt this working

This code come from Bjarne Stroustrup's programming and practice book. Why isnt this working. Im using Visual studio 2013 #include "std_lib_facilities.h" int...

[2 replies] Last: false alarm guys, i didnt even had this std_lib_facilities file in my ... (by etrusks)

by nenko182

solved

done

[4 replies] Last: Which one is better? I don't think there's much difference with th... (by cire)

by my228rocks

Lost in the Loop

First I want to thank all the support for the community, you are all amazing. My issue is that when I run this program, it does not accept the "area" INT, is st...

[9 replies] Last: Thank you, using the //comments makes a world of difference. (by my228rocks)

by Joshcannon

Vector to array

Could somebody show me how to change this tidbit of vector code to a dynamic array? vector<char> storage; for (int i=0; i < pairVector.size...

[2 replies] Last: std::vector<> is an optimised, resizeable dynamic array. There is no... (by JLBorges)

by abdalimran

Passing 2D array into function using pointer

I've written the following program. I am trying to pass the 2D array into function using pointer and change the value and reassign it into the array. But it ...

[3 replies] Last: Hi, here you go #include <bits/stdc++.h> using namespace std; tem... (by closed account SECMoG1T)

by shola

Spare a Square Problem. Need help to figure it out.

1) Use a function that generates and returns a random number between [0,1] which can be used to determine whether a patron is a big-chooser or littlechooser. ...

[no replies]

by Dojo

HELP HELP HELP !

hi guys,i am very new to this site and most of all im very very very very very new to programming and c++. i started learning it only week ago but reading pages...

[3 replies] Last: Every compiler is slightly different, but somewhere in your compiler's... (by Ganado)

by VVS

int main ()

how do you separate one program from another on a single file? i have to submit a hw problem that is 3 parts and I'm trying to send one cpp file but i current...

[3 replies] Last: ok nevermind i got it!! thank you!!! (by VVS)

by herooftime1000

Negative arrays (Homework due Wed)

Hey, all. Sorry to return so soon, but I need help. Here is my assignment. Recall that in C++, there is no check on an array index out of bounds. However, d...

[1 reply] : Nevermind. I found a workaround. (by herooftime1000)

by g0d1msh0rt

Why isn't my code compiling?

I am trying to write a program that asks users for inputs mass and acceleration to calculate the force and then print it out. I don't know why it isn't compilin...

[4 replies] Last: I would place the executable code for gathering the data from the user... (by OUIJ)

by anup30

Maximum Size of Recursive Fill

my following program fills continuous elements in 2d array recursively. but it worked only for N<180. why doesn't it work for bigger size? // Recursive fi...

[14 replies] Last: is there any library facility (container?) which provides random acces... (by anup30)

by Xolin

Displaying the instance name of a struct / class

So I'm getting into objects and I have a situation where i want to display the name of the object. So let's say i have a critter named stan: struct crit...

[2 replies] Last: derp..... thanks! (by Xolin)

by prsnt1994

pointers to functions.

im completely new in c++ i was trying to write a function which returns mod of difference of two input numbers ie.(z=|x-y|) im having compilation errors.can som...

[3 replies] Last: I don't think there's any difference for functions, it just saves you ... (by tipaye)

by jeisselflores

Sorting linked list

Our case study was to create a 2d array that uses sorting searching and linked list and apply classes, functions, structure and pointers so I am sorry I made th...

[no replies]

by Frank83

Help with inline functions

Hi, I'd like to understand how inline functions work. I've read that you have to fully define the functions you want to inline before you call them. That's be...

[11 replies] Last: Read whole sentence. The hint is ignored, not the keyword. if that w... (by MiiNiPaa)

by Irhcsa

Class Error

Getting the error: "Error: too many initializer values" Can someone help me figure out what I'm doing wrong? Code: #include <iostream> using namesp...

[5 replies] Last: I thought variables put above would be universal for the entire progr... (by coder777)

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Beginners - February 2015 (Page 49)