Beginners - C++ Forum - June 2014 (Page 36)

by sidthekid2014

How do I return a specific value from a function in order for me to cout it in my int main? In this case i have solved for a value sigma1 in my function but ...

[2 replies] Last: Yep they all work just fine Thanks alot :D ! (by sidthekid2014)

by melmo703

Help with pass by value, and results by variable

I need help with my online c++ assignment. The instructions: A nutritionist who works for a fitness club helps members by evaluating their diets.As part of...

[1 reply] : See section " Arguments passed by value and by reference " in http://w... (by keskiverto)

by p al

Erase elements from vector while iterating through vector

Hi guys, I am trying to erase elements from a vector that are equal to the 1st element of the vector. The following code works fine when v.size is even but it ...

[6 replies] Last: Oh thanks! That was the problem! I hadn't included the header algorith... (by p al)

by gladi

Not reading my file.

I am using xCode on mac and when I want to run my program and give me ERROR: opening file - LOCTest.cpp please some help. /*******************************...

[1 reply] : Try writing the file's absolute path. (by keskiverto)

by yepMe

Need to understand the logic of multiplication and addition logic

Hi Tech gurus, I am studying c++ using "Thinking in c++" now am in chapter 1 and solving the exercises , I have solved the last two questions Q9 ) Create 3 v...

[7 replies] Last: The idiomatic loop while( f >> word ) { /* ... */ } will execute onl... (by JLBorges)

by tdk93

Why isn't the value of y incremented after this, z = ++x||++y&&++z?

Why is the following program giving the output as y = 1 instead of y = 2? int x,y,z; x = y = z = 1; z = ++x||++y&&++z; printf("%d",y); ...

[4 replies] Last: Don't confuse operator precedence with the order in which the code i... (by Peter87)

by Cyber X

Aggregation

Need help with aggregation of classes. Suppose class Passenger is aggregated to class Bus. Then how to overload = operator in class Bus. class Bus { ...

[1 reply] : class passenger { /* ... */ } ; // CopyAssignable class bus { /... (by JLBorges)

by lays

how to shut down keyboard input buffer to directly react my key strike

I am trying to write a game which need to control the action. It is obviously bad to press enter key each time. Because game needs infinit loop, so the wait...

[2 replies] Last: thanks. (by lays)

by tdk93

what's wrong with a>b?return(a):return(b);

What's wrong with the following expression? Why does it throw an error? (a>b)?(return a):(return b);

[1 reply] : return a is not an expression. a>b ? a : b is an expression. Eith... (by JLBorges)

by skipperPenguin

Returning array in C

I am writing a program that needs to return the number of values that are divisible by 3 and 7 and the sum of these values.Here is my code #include<stdio...

[3 replies] Last: Instead of returning an array from the function, we can fill an array ... (by JLBorges)

by Life24

Space ascii code

Hi, I want get number while user insert space with ascii code(32) What i do? The below code doesn't work. char ch; cin>>ch; while (32 !=(int)ch) {...

[6 replies] Last: const int SPACE = 32 ; // hard-coded code-point for space (32) assert... (by JLBorges)

by mcdochri

help with maze program C++

My program is supposed realize that it has hit a 'K', which is a key to unlock a door, and store it. I am not sure how to link the two. any suggestions on what ...

[3 replies] Last: If you are referring to removing the key once you have collected it t... (by Codermik)

by Nezar

I can't find the bug in this code

I'm trying to write a program that return the number of occurrence of a sequence of letters in a string. I'm really confused with what i made up !! help me fix ...

[5 replies] Last: Hey guys, Thank u for the solutions, it worked. To be honest, i didn't... (by Nezar)

by LayMuon

nullptr

The code bellow seems to enter infinite loop, why is that? Thanks. #include <iostream> #include <cstdlib> #include <ctime> #include <stddef.h> us...

[3 replies] Last: wait you are right. Everything works fine now, i missed one definition... (by LayMuon)

by hinesro

Pushing elements from front of deque to the back

Hello, I'm wondering what the proper syntax is for this. I have a deque of pointers to class objects. I want to perform some actions on the front element, then ...

[2 replies] Last: Ahh, just noticed that as well. Thanks for the quick response! I had f... (by hinesro)

by sambos

Reading from files with Win Form App

Hi, I've written a program that has quite a number of labels. The program is a Windows Application Form written with Visual C++ 2010 Express. Within these...

[no replies]

by DrZoidberg

Strings and binary data

This works fine char* mem; int bnum; GetFileCont("Capture.PNG", 0, 5000000, mem, bnum); ofstream out("Capture2.PNG", ios::binary); out.write(mem, bnum); o...

[7 replies] Last: Alternatively: char* mem; int bnum; GetFileCont("Capture.PNG... (by cire)

by darrrkjin

Need help with reading into array

i have a project that requires me to read all records from a disk file. (the record structure: name (20 bytes), grade (integer)). i have to sort the test scores...

[1 reply] : i have figured out most of it , just having some problems with my sort... (by darrrkjin)

by BLANKE

NEED HELP WITH IF STATEMENT

I need help understanding what is wrong with my program. I have read about if-statements on this website but that hasn't helped me much. When a user inputs bat,...

[7 replies] Last: Thanks for the help :) (by BLANKE)

by JamesTzashi

Small Problem

Okay so this is what should be a simple enough code, i just want to create a function that will decrease the nHealth Value by the nAttack Value then output that...

[1 reply] : Your function doesn't do anything to modify your other values. It cr... (by Ganado)

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Beginners - June 2014 (Page 36)