General C++ Programming - C++ Forum

by sm9

How to know where an identifier was defined before (1,2)

I am trying to compile a program which consists of multiple c and fortran source files. There is one...

[22 replies] Last: @helios Thanks! I am not a programmer, I am a chemist, so these things... (by sm9)

by ujinlow98

C++ math logic

How to do a simple math logic as examples below? Use the following - is the largest - is the ...

[1 reply] : One approach: * have collection of (label,value) pairs * sort the coll... (by keskiverto)

by karla89

Wrong coopilation

I'm new to using c++ and I have to design and code a C++ program that utilizes a function to calcul...

[4 replies] Last: Woooow, that's what OP meant by "duplicate". I didn't realize the x pa... (by Ganado)

by Sunnycoder

C++ call stack Problem

(This is the Question) Implement the following function: int max(int a, int b, int c); Your program ...

[3 replies] Last: #include <iostream> #include <algorithm> #include <initializer_list> ... (by lastchance)

by c1885

random double Please help me understand this code:

I am working on understanding the following code: Question 1 To begin with I do not understand w...

[5 replies] Last: You do know about C++ classes and templates? I am just leaning ... (by c1885)

by saltdrain

Template for irrationals without approxiimation

As the title suggests I am looking for a template that handles arithmetic with irrationals without c...

[2 replies] Last: Search this forum for "rational" and "fraction." There are dozens of e... (by dhayden)

by drmario6532

How to make different comments different colors in Visual Studio Code?

I'm trying to define what my code is doing as I go along so I don't get confused when I come back to...

[2 replies] Last: you can change xml comment to another color and use /// for those. b... (by jonnin)

by philip9621

SPF Calculator for Sunblock

Hi guys! I am working on a program that calculates sunblock data. One function is to calculate the S...

[1 reply] : Wikipedia says you don't have the data in the right units to calculate... (by helios)

by lablnet

confusion to understand Dynamic memory in C++

C++ dynamic memory says, we will allocate memory what we need right? so in sense it's create one run...

[3 replies] Last: This above program give error in MS visual Studio, but work in other ... (by keskiverto)

by qtngmin

OOP C++(constant char pointer) (1,2)

I have some problems with the const char error. Its comeout a segfault for the result, please help m...

[29 replies] Last: I can see that all the other compilers can run the code. I dont know w... (by qtngmin)

by JRManx

Linked List adding node issue (1,2)

I've been working on a little project that requires linked lists, and it's been a long time since I ...

[24 replies] Last: But either way you still have to traverse through the list nodes to g... (by dhayden)

by frek

std::cin's APIs

Hi all, I'm developing the project below. How is it from your point of view? #include <iostream> ...

[12 replies] Last: The frek:: is the "simple rename". (by keskiverto)

by frek

The TEA Algorithm input/output text

Here's the TEA algorithm I'm working on: #include <iostream> #include <string> #include <fstream> ...

[5 replies] Last: How to write each byte individually and cast each byte to a char to be... (by frek)

by Sunnycoder

Void Programming Question

void printStars(int);/*( ADD:) the function prototype for printStars */ int main() { int numof...

[3 replies] Last: Wow thanks ! (by Sunnycoder)

by juicypwner

Not sure how to proceed here with min stops for gas

For line 34's function, stops, I tried to see if I needed to call functions for minimum gas or find...

[no replies]

by lostbits

How do I avoid a nonstatic reference error

The following code: class X { public: const X& x; class Y { void func() { x.run(); } ...

[5 replies] Last: @Ganado Ahem (also, "Aho") you're right. What I eventually did is to ... (by lostbits)

by stasloe

Pseudo threads

Hello! Please tell me how to emulate the work of multi-threaded mode in one thread. Are they suitabl...

[2 replies] Last: For Windows, you could use fibres. You can have multiple fibres within... (by seeplus)

by Hawlong

system Error

Hello , how can hidden this msg " The program can't start because xxxx.dll is missing from your c...

[1 reply] : I don't think it's possible to avoid this message when the dell is loa... (by coder777)

by lostbits

What is a regular expression to parse csv files?

MSVS 16.9.2 I am using regex to parse input lines in a Comma Separated Value (csv) file and can't...

[6 replies] Last: It turns out that my csv output is dead simple. It contains only a ':'... (by lostbits)

by Cambalinho

how compare simples aspes?

how can i compare simples aspes? string text= "safdsA var ifl ; -.67Ç 68.9\"hello \"\" mother!!!...

[6 replies] Last: from these text: string text= "safdsA var ifl ; -.67Ç 68.9\"hello ... (by Cambalinho)

General C++ Programming - March 2021 (Page 2)

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