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March 2017

Beginners - March 2017

Hey guys. I need to write a maze solver that using recursive backtracking to solve how to get through the maze. It will read in the maze file from command line ...

[1 reply] : If you search the forum for "maze" you'll find some similar problems t... (by dhayden)

by Suroh90

Arrays In Class "Invalid Use of Non-Static Data Member"

Happy Reading! I've used this code in a previous revision where I didn't use classes. Now when I try to pass it through I'm getting: "Invalid use of non-stati...

[3 replies] Last: I was using a C string because when you would input a name like "Benj... (by jlb)

by esokoletsky

do while loop

Given an int variable k that has already been declared , use a do...while loop to print a single line consisting of 97 asterisks. Use no variables other t...

[3 replies] Last: note OP line 2 and line 5 have different scope (by gunnerfunner)

by gubhaus

Bool true/false for error checking

Hi, I am working on a lab assignment and I am having trouble with this one section. I need to write something that will print an error message and not run the p...

[4 replies] Last: Chervil - this was a great point, I was doing exactly(!) the same and ... (by gunnerfunner)

by hockey34

Control may reach end of non void function

I am getting the error message that the control may reach end of non void function and not exactly sure what is wrong. double LinkedListStudent::searchS...

[10 replies] Last: Is return N->GPA correct? It seems ok - without seeing the rest of... (by Chervil)

by whyMUSTi

C++ to Raptor flowchart

How do I put this C++ program into a raptor flow chart? #include <iostream> using namespace std; //function to sets each array element to the corr...

[2 replies] Last: Have you already learned what an initializer list does? Instead of wri... (by goldenchicken)

by AnimeByDay

last item in inventory viewed twice

In the code below i am having a bit of trouble. the program should allow you to view the items in a list of items, add a new item or edit and existing item on t...

[8 replies] Last: There are two errors at line 6/96: While (dataFile.read(rei... (by Chervil)

by test1234

in and out stream

I am having to do a caesars cipher program and when I encrypt a file it works fine but the problem is when I decrypt. Example I have a file called "plain" t...

[6 replies] Last: The following version works, but it's very basic: /* ==============... (by Enoizat)

by Alex1993

Where is this function coming from?

Hello! I found this function online and I cannot trace the research paper from which is coming from. It calculates the Cumulative Normal Distribution. Any clu...

[2 replies] Last: The cumulative density function of the normal distribution (CND, or Ph... (by lastchance)

by gurpartap

Static int inside struct is undefined !!

Why static int is not defined inside struct abc.. #include <iostream> using namespace std; struct abc { static int x; }; //int abc::x; int main() ...

[1 reply] : Static members have to be defined outside the class somewhere, like yo... (by helios)

by JarrodBaniqued

Space Invaders Scorekeeper & Enemy Motion

I need help on two things: How do I create a scorekeeper to track when a "bullet" hits an "M"? How do I make each M move downward? #include <iostream> #inc...

[1 reply] : This code might be the problem: (Line 25) { struct Bullets b1; struc... (by goldenchicken)

by Meden

When you call a function, what do these do<>

I am studying cire's solution here: http://www.cplusplus.com/forum/beginner/108849/#msg592118 To understand it I have been learning about templates and type...

[1 reply] : get() is a function template and <> tells the complier the type a part... (by gunnerfunner)

by Alex1993

Using Guards in CPP

Hi, guys! I have recently started to expand a small program I have written a few days ago and I need to include more header files to improve its readability...

[6 replies] Last: This is a syntax error because of the space between the two underscore... (by JLBorges)

by devopablo

Is there a way to evaluate "if (variable is an integer)"?

Title says most. I'm working on a class template, and I would like to be able to compare a template variable to a data type, rather than a value, and have a ...

[3 replies] Last: > if the stack is empty, I want to be able to return a default value ... (by JLBorges)

by avatar97

Is there a way to open matlab ?

I'm writing code which reads data from a text file and sorts it. I would like to plot the data in MATLAB so I was wondering if there is a way to open matlab lik...

[1 reply] : you can start any executable with C++commands. Try the executable n... (by jonnin)

by Arios

Function not being invoked

my function isnt being invoked so it just compiles and ends, any idea's? #include<iostream> #include<string> #include<ctime> using namespace std; /...

[2 replies] Last: Your function was called (try strings of different length) but your me... (by lastchance)

by Suroh90

Returning INT Through a Class

Morning/Afternoon/Happy Lunch-Time I'm trying to get it so I can pass an Int into Dice::Hundred and it returns that Int back into Main with a number less tha...

[2 replies] Last: Thanking you highly ;D (by Suroh90)

by its20alif

Need assistance with c++ program

This program is supposed to use a double scripted array-A company has 4 salespeople(numbered 1-4)who each sell five different products(numbered 1-5)Once a day, ...

[7 replies] Last: Sure, I can try to help but what exactly do you need help with? It app... (by kingkush)

by jvardam

convert to loop

How do i make this so it keeps repeating unless a -1 is inputed. And when inputed it couts a statement. I have tried do while and if but it messes up on me ever...

[3 replies] Last: Jvardam I am not sure i understand, Binary number 10010000 is in deci... (by xxvms)

by its20alif

Please help with c++ program?

This program is supposed to use a double scripted array-A company has 4 salespeople(numbered 1-4)who each sell five different products(numbered 1-5)Once a day, ...

[5 replies] Last: the guy was not responding. Unbelievable, uh? (by Enoizat)

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