Beginners - C++ Forum - April 2019 (Page 7)

What i´m doing wrong undefined reference to `GetFirstParam(st

Hello, whats wrong on this ? Thanks for help std::string cmdstr = "start/next/end"; std::string cmd = ""; cmd = GetFirstParam(cmdstr, '/');...

[2 replies] Last: you need a function header or to call it after (below, top to bottom) ... (by jonnin)

by iamyiyaj

Replacing capital letters with lowercase letters

I tried the code below and it does not budge although it compiles #include <iostream> using namespace std; void mess(char ); int main() { char s...

[1 reply] : Replace lines 22 and 23 by str = tolower(str ); Yo... (by lastchance)

by Flynn Rhodes

Header Files and Using Methods Located in Other .ccp Files

I am getting an undeclared identifier error on lines 8, 15, and 16 of on Will_lib.cpp it shows up here as line 50, 57, and 58 // overtime.cpp : This f...

[3 replies] Last: > I am getting an undeclared identifier error ¿which identifier? (¿w... (by ne555)

by EarlyProgrammer

Tutorials for utilizing a structure in a monster battle/adventure program?

I have been unable to find any tutorials which utilize structures for a monster battle/adventure program. It seems that classes are utilized the most in thes...

[1 reply] : A structure is the same as a class, except the default access is publi... (by helios)

by daveed

How to read a file into pointers

I am trying to read a file using two separate classes: Book.cpp and Warehouse.cpp. Book is the objects and the Warehouse is basically a collection of Books. H...

[4 replies] Last: use github or similar, or just post the top errors, but don't go parap... (by ne555)

by aakashdata

the role of preprocessor directives in c program

What is the role of preprocessor directives in c program? What if, we don't use it?

[4 replies] Last: I tend to suspect something fishy with posts like this, but I couldn't... (by closed account z05DSL3A)

by Orion98

Finding The Most Common Value and its Count in a Array of Random Numbers

This program I'm working on generates an array of random numbers, then outputs the most common number in the array and how many times it appears. I already mana...

[2 replies] Last: #include <iostream> #include <iomanip> #include <ctime> #include <cst... (by lastchance)

by bistelA0005

new without delete?

How come this code does not require a delete or delete after the instantiation via a pointer and the keyword new was used (line 21, 26)? Thanks #include...

[5 replies] Last: Human* firstMan; // gives me an error firstMan->name = "Adam"; W... (by keskiverto)

by Bopaki

Program does not print the elements of the copied stack

The original stack (myStack) prints elements well on the screen. The copied stack (yourStack) prints nothing on the screen> #include<iostream> #includ...

[4 replies] Last: I simply re-pushed all the elements from myStack and the program work... (by TheIdeasMan)

by TJW

Find multiple modes in an array

I tried to write a function to find the mode(s), but it didn't print out the correct mode(s). The code and example are as below. Thank you for your time. ...

[6 replies] Last: modeCounter=0, //Array size. modeNumbers ; //Create an array t... (by lastchance)

by stoneJax

Access Violation

I just completed a project and I thought that I was done and now I am getting an exception thrown that says: Exception thrown at 0x7793D9CB (ucrtbased.dll) in ...

[3 replies] Last: The copy constructor is how my instructor set his up in his example. I... (by stoneJax)

by Yogib

nested if else. can someone help me?

there's clearly something wrong with my if else statement. i see that that values for letter and message.at(m) are updating but no dice on my translation sting...

[1 reply] : if (letter == 'A' || 'a') Hi that code doesn't do what you think i... (by TheIdeasMan)

by avatar133

How do I read from a file and display it to the user?

I have a file (input2.txt) that looks like this: (https://imgur.com/a/Ey4qBpw ) And I want to open that file and store it in a 2d dynamic array. This is in the...

[2 replies] Last: Yes! Thank you, that helped a lot! (by avatar133)

by closed account N8MNAqkS

how does this work (1,2)

this doesn't do anything. it does not open a txt file and print anything in it. std::ofstream myfile; myfile.open("Array.txt", std::ios::out | std::ios...

[21 replies] Last: To clarify before Helios gets on my ass about this too. I was joking w... (by closed account N8MNAqkS)

by rsp19

Debug assertion failure

I continue to have this error stating Expression: string subscript out of range when trying to run a C++ program I have tried to debug however, the error con...

[6 replies] Last: It works great now, except I cannot get the right numbers that the num... (by rsp19)

by Warzombie3701

AP project Ideas?

I have to make a program using C++ for my AP class. There are a bunch of requirements for it though and one of them is that it needs to have an algorithm that h...

[8 replies] Last: Dhayden That might work but I don't even know the first thing about ... (by Warzombie3701)

by Orion98

Formatting an Array of Random Numbers

I'm writing a program that generates 50 random integers (in the range of 0 to 100) into an array. The thing I'm having trouble with is formatting the array of 5...

[4 replies] Last: ...then outputs the most common integer in the array and how many tim... (by MikeStgt)

by acscicplusplus

Read in Data from a File to Create a 2D Array

I posted about this last week but the solution didn't provide me enough clarity so I'm hoping this time works out better. My assignment is to read in a text fil...

[4 replies] Last: Yes that worked very well and I intuitively understood it as well. Tha... (by acscicplusplus)

by Abdulahad

Assignment

Write your question here. Create a class called student. This class contains data members for name, roll no, and CGPA of a student. Provide a no-argument ...

[5 replies] Last: @jlb, Thanks for the input. I did not understand correctly that the c... (by Handy Andy)

by kyrresc

Why doesn't this compile?

Very basic, but... why doesn't this compile? map<string,double> dow_price = { {"MMM",81.86}, {"AA",34.69}, {"MO",54.45} };...

[8 replies] Last: Yes, they're completely different. std::find() is implemented basicall... (by helios)

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Beginners - April 2019 (Page 7)