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General C++ Programming - April 2020 (Page 2)

I have a class called SoundThreadManager. It defines a function: void Init(f_GetSoundSample getSoundSample, f_SoundConverted playSound, int sampleRate,...

[6 replies] Last: Thanks for you help. This is a great forum, for noobs like me to ask q... (by Manannan)

by Phoenix3317

Pulling info from a file and creating an object

Hello I am pretty new in regards to fstream and file manipulation. So I have a hw problem where I am reading a file with a list of <first name> <M or F> <freque...

[11 replies] Last: You may wish to further re-factor the design and implementation of thi... (by jwin)

by shubham1355

How to take input as fractional number without using float/double data type?

Is it possible to take a decimal number as input from the user without using float/double data type? And this number has to be used further for calculation. I...

[5 replies] Last: http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.178.3957&rep=... (by lastchance)

by mk7mew

Homework [Help]

I'm still not understanding how to fix the c++ code that was asked by my prof. She asked us to complete the entry shown below to add a function to get the stu...

[1 reply] : Also here https://www.cplusplus.com/forum/beginner/269978/ Don't post ... (by salem c)

by staycoding12

passing arrays as function

Instructions Note: Some data input to this program and some program output depends on your name. If you do not use your name as required, points will be deduct...

[3 replies] Last: you can pass an array to a function as a pointer or you can use hard c... (by jonnin)

by jakerg777

How to display two decimals places in the final result

This is my first time posting on this website so bare with me How do I make the final result display two decimal places? (since I am working with money. #...

[1 reply] : The compiler isn't reading from a file, your program is.* while ... (by Ganado)

by Esso

Where can I find a program / ide do that?

https://www.cs.usfca.edu/~galles/visualization/RecFact.html It would really help!

[8 replies] Last: Yeah, dhayden ... I guess you're right, thanks, bro! :) (by Esso)

by mollywhoppinRBG

function call help using while loop for validation

I am trying to use a validation block by via a function because it will be repeated. When I just use the while loop it works but I know I should be able to do a...

[15 replies] Last: So the while function that's in the first if statement is the only on... (by mollywhoppinRBG)

by TOGS

Ignoring characters within a string

I have a string in this format:"sonic",2019,"PG-13","Action",113,0 within a textfile, i've been able to use a stringstream to parse each individual value t...

[4 replies] Last: trying to make sure it prints out in the exact same format as text fi... (by deleted account xyzzy)

by thmm

Why was/is Bitcoin written in C++ instead of C?

I don't know what Bitcoin required but generally speaking C++ has lots of features C doesn't. Why should anyone use C when starting a project from scratch?

[2 replies] Last: Reddit copy-paste. You know what that probably means... https://bitcoi... (by Ganado)

by closed account Ey80oG1T

How to write if statements in templates

So I have this code: template<typename T, bool = std::is_arithmetic_v<T>> class Expression; template <typename T> class Expression<T, false> { }; template ...

[1 reply] : I'm not entirely sure what you're looking for, but maybe something lik... (by dutch)

by Naledi1

Minimum number funtion

Good day, i am a first year student in Computer Programming. I have been tasked with writing a program that prompts a high school student for personal details a...

[5 replies] Last: Thank you so much, using "do" loops instead of "while" loops did the t... (by Naledi1)

by marhuum

static variable cannot be accessed directly from a code in class

Why a static variable as a class' member cannot be accessed directly from a line of code of a function inside class, instead it has to be access in the function...

[2 replies] Last: The question is a bit unclear. I think Repeater's answer is what abdul... (by Ganado)

by Hanske

Boost serialization (1,2,3,4)

I would like to save objects from a parent class in a text file and then be able to load the objects. The problem is that all the objects are pointers so only t...

[63 replies] Last: Hey everyone, I'm getting the error "std::bad_alloc" when running the ... (by Hanske)

by kyviro

throw_bad_alloc error with arrays

Salutations. I am new here, but I have seen that people here are quick to reply. I have a problem when I'm handling some arrays in my program. I have an ar...

[5 replies] Last: Thank you very much for the reply! I have replaced the <= operater wi... (by jlb)

by kittysoman2013

Error In Conversion C++ Code To C

[// C++ Implementation to find the 02 // XOR of the two Binary Strings 03 04 #include<bits/stdc++.h> 05 using namespace std; 06 07 // Function to find ...

[5 replies] Last: > Error In Conversion C++ Code To C Also know as I found this code in... (by salem c)

by kbw

Application of C++ in ARM processors

I can't see how using an ARM is different than using some other processor from a C++ programming point of view. The arm32 toolstack has a few quirks, but from ...

[4 replies] Last: I can't see how using an ARM is different than using some other proce... (by dhayden)

by Scarletpimp

Common function which accepts different structures as parameter

New to c++ and i am trying to write a common function which accepts a structure with common fields. For example struct A { int id, int p_id, json_t...

[2 replies] Last: With function overloading: void f(const A& s); void f(const B& s); vo... (by thmm)

by slbcpp13

How to clear/empty priority_queue of objects

Ok. I'm a beginner and missed that fact that I was missing the open and closed parentheses next to "pop". It's a method. Duh!!! Thanks for reading. I wou...

[1 reply] : Is pop a function? Then call it like you would call another function. ... (by Ganado)

by Sion Tiplady

Hangman Program Problem

Most of my hangman program works fine, except for when I get to the //Guessing Letters Section at the bottom. The only letter from the word it accepts for is th...

[7 replies] Last: I believe the problem to be in here: for (guesses = 0; guesses < max... (by Sion Tiplady)

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