General C++ Programming - C++ Forum

by katie1219

C++

Hello this is my project. Because I do not know how to define which file is marked sort or unsort wh...

[4 replies] Last: C++ is a general purpose programming language and widely used now a da... (by simpliv)

by mikeycc

Need help please.

OVERVIEW Object bankAccount properties: balance, acctNumber, userName Object startMenu Objec...

[4 replies] Last: Start with a thing. string userName; cin >> userName; Then severa... (by salem c)

by begwerda

Numerology prog help - beginner

Hey I did some c++ back in high school and I just started getting back into coding as a cure for bor...

[3 replies] Last: I made a little program to "add up" the dates by summing the digits in... (by dutch)

by technologist

infinite loop not infinite

The following loop works as expected: infinite looping: bool loop = true; while (loop) { std::...

[2 replies] Last: Lol simple mistake. Brain farts happen to all of us, OP. (by TheToaster)

by Odglog

How to apply a delay to a specific part of the code?

Hello! My question is pretty simple, I am currently making a text-based top-down RPG game. Anyway, i...

[7 replies] Last: Ok, it's working now. Thanks! :D (by Odglog)

by philip92

Getting an error while reversing vowels in a string

I'm writing a code to reverse vowels in a string. I first took all the vowels of a string into a vec...

[2 replies] Last: @philip92, @Repeater has the source of the crash. Now, consider what ... (by Niccolo)

by aceadams

Built In lower_bound function

When using the lower_bound function, why does subtracting the array give you the index value? in...

[3 replies] Last: Subtracting one pointer from another, gives you the "distance" between... (by MikeyBoy)

by aceadams

Array Struct Not Being Sorted

When I sort the second time based on compnow, the struct is not being sorted (line 67). #include <...

[10 replies] Last: Update: I have solved the issue, it seems all I had to do was change t... (by aceadams)

by GillesCplusplus

Adjaceny matrix for dijkstra shortest path algorithm

Hi guys, I want to apply dijkstra shortest path algorithm to the following 2 files: projet14_milest...

[3 replies] Last: I don't see any particular wrong in your code, and it does work in my ... (by ne555)

by GillesCplusplus

2D array

Hi guys, In the following code, the variable adjmatrix doesn't take the value I want it to take. 'P...

[5 replies] Last: > So 'start' should fit in char milestone_nom , isn't it? as ganado s... (by ne555)

by GillesCplusplus

'Function definition is not allowed here'

Hi guys, I'm trying to run the following code, but it seems there has to be a mistake in the main() ...

[2 replies] Last: It helps if you use code tags -> http://www.cplusplus.com/articles/jEy... (by salem c)

by lumbeezl

Create file to access in program

In the program I've written, I stream data into a vector<struct> from some files up to sizes of 3GB....

[12 replies] Last: @JLBorges has a good take on this above. One thing I'd suggest, when ... (by Niccolo)

by zolo

out-of-line declaration of - template inline functions

Hi, I am getting the 'out-of-line declaration of' compiler error when trying to complie some libr...

[2 replies] Last: Hi, Thanks, changing to g++ did indeed help and the error is gone now... (by zolo)

by GillesCplusplus

C++ read file into adjacency matrix

Hi guys, I want to apply the shortest path method (Dijkstra algortihm) to the following file: ...

[2 replies] Last: std::string field; std::getline(std::cin, field, ','); that will read... (by ne555)

by Albatross

How would I solve this equation

So A is simultaneously equal to 5, 0, and 250. Where's the quadratic part? (Also, this is, y'know, ...

[no replies]

by Ganado

constexpr string_view length

Anyone know why this doesn't compile in C++17? The compiler is telling me that my that I'm calling ...

[3 replies] Last: foobar_checker< foobar().length() >() ; compiles cleanly on MinGW w... (by JLBorges)

by aceadams

Competitive Programming Problem

Angry Cows ========== Bessie the cow has designed what she thinks will be the next big hit video...

[4 replies] Last: > Why is the value of min incorrect you limit the radius R to the rang... (by ne555)

by GisiNA

C++ program calls template function inside DLL

Hello you all! I'm trying to pass parameters to a DLL-Funktion and get a return-value from it. My...

[3 replies] Last: Now I have a new question. Is it possible to have a template-Funktion... (by Niccolo)

by philip92

Getting an error “terminate called after throwing an instance of 'std::out_of_range'”

I am doing a challenge questions from LeetCode and I came across this question. Given two non-neg...

[8 replies] Last: This got my creativity going so I tried (without looking *anything* up... (by jonnin)

by turqo

pattern search code help

Hi, could someone help me finding a way to do the following: if I have a pattern like 01001010...

[7 replies] Last: You can indeed do something like that ... but it is like scanning all ... (by lastchance)

General C++ Programming - August 2019 (Page 4)

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