General C++ Programming - C++ Forum - November 2017 (Page 13)

This is the exercise: Write a program that will ask the user to enter word. Your program will open a file that has 25 words in it. It will call a function that ...

[no replies]

by Spirrwell

std::map and Performance Questions

Hi there! So I work on a mod that uses the Source Engine. I did a performance profile and found we were losing a LOT of FPS from it computing animations. The...

[2 replies] Last: Ahaha, oh yeah. I did a very basic implementation and just sort of hac... (by Spirrwell)

by CodeIdiot

Complicated dollar sign outputer

does the following script work -- I'm working on a school provided computer and I can't test it out. it's suppose to output this: $$$$$$$$$$$$$$$$$$$$$$$...

[2 replies] Last: thanks, I fixed it with Corliru -- here's the working version: http://... (by CodeIdiot)

by meemoeuk

class, self reference problem

#include <iostream> #include <string> #include <list> using namespace std; class node { float ang, dist; node* parent; list <node*> kids; // an n...

[6 replies] Last: Will this work? Assuming that node::kids has type cv- std::list<n... (by mbozzi)

by hibiscusleaves2544

why is my this pointer pointing to nullptr?

here is a picture of the actual error and exception throw error i'm getting. https://cdn.discordapp.com/attachments/370147666673532940/376183527466729472/9.pn...

[7 replies] Last: hello! sorry for the late update but it turned out that I didn't defin... (by hibiscusleaves2544)

by vtee2014

Function strchr

Following the examples of function pointers in the Wikipedia article with the title Function Pointer at https://en.wikipedia.org/wiki/Function_pointer The f...

[6 replies] Last: [quote=vtee2014]char * (*func2)( char *, int ) = strchr; // LINE NOW C... (by Cubbi)

by meemoeuk

pointer to class instance problem

class x{int y;}; void test() { x q; x* xp; xp->q; } gives build error "line 7 : class x has no member q" q is supposed to be an instance of the class x....

[4 replies] Last: Actually, I'm sure you had a firm understanding of -> and & 19 years a... (by doug4)

by Atousa

Set Precision in C++ Builder

Hi, I've written a program in C++ Builder 6, in order to generate a code for PSpice software. In this code I've used a for loop like this: for (do...

[2 replies] Last: for (double i=deltax/2; i<Lx; i=i+deltax) { AnsiString temp; ... (by Chervil)

by Demrottens

Just asking for some advice

I am making a program (for self use) with which I can create schedules and events, just like an agenda. Maybe later I will make it calculate health stuff so I c...

[3 replies] Last: Ah right, I get it, Im gonna do It now, thank you people! :D (by Demrottens)

by jhmallot

NCPAINT

Bonjour, J'essaye sous Windows 8 de changer la couleur du titre et du fond d'une fenêtre (Zone non client) . J'ai repris du code trouvé sur le net. Voic...

[no replies]

by vr777

Mancala C++ Project

Having trouble with this for loop that places the number of "stones" for player one counterclockwise but for some reason it isnt allow the 2nd player to do the ...

[4 replies] Last: @doug4 OP wrote.. // HERE IS THE CODE I IMPLEMENTED SPECIFICALLY TO ... (by doug4)

by closed account Sz6592yv

Comparing

So

[8 replies] Last: Please DON'T delete your posts once you're done with the question. It... (by MikeyBoy)

by olivertwist

How to count the number of even numbers in a text file

#include <iostream> #include <string> #include <fstream> using namespace std; int main() { ifstream inputFile; string filename; int number; int counter = ...

[5 replies] Last: The best way to determine that is to make a test file with a known num... (by SamuelAdams)

by aichamb

error: expected unqualified-id before '=' token

struct res { double predict_label1 ; double precision1 ; double prob_estimates_t1 ; }; res = svmpredict(LabelS1,SStest1, model); ...

[1 reply] : res = svmpredict(LabelS1,SStest1, model); res is a kind of object. ... (by Repeater)

by whiterose00

How to Overload Operators with Polymorphism

I have to create a Complex class and a vector class that includes vectors of Complex numbers. I have to overload +,-,/,*, << in both classes. Would they both be...

[4 replies] Last: > I have to overload +,-,/,*, << in both classes. > Would they both b... (by JLBorges)

by realmeal100

Phone Database Program - Infinite Loop

Continuing on my program, I still seem to hit another snag. I am trying to only allow the user to only input 4 characters as the ProductID. It works. However, w...

[1 reply] : The issue probably has to do with the remaining input sticking around ... (by newbieg)

by SSteven

ios_base::register_callback()

This website contains some doc on this topic: http://www.cplusplus.com/reference/ios/ios_base/register_callback/?kw=register_callback Does anyone else hav...

[2 replies] Last: Sorry, I had searched, but I don't know how I missed this page; usuall... (by SSteven)

by junaidahmad

yntax error _asm” on visual studio 2015

I have tried to execute a c code namely Evaluate function. But I am facing some problems regarding implementation of c file. I am using visual studio 2015 alon...

[1 reply] : Did you copy the source from somewhere on the Internet? Can you link t... (by helios)

by helios

Mysterious undefined reference error

This is what my setup looks like: A.h #pragma once extern const byte_t packed_image_data ; extern const std::uint16_t tile_mapping ; static const si...

[4 replies] Last: Ah, I see. Alright, that answers my question, thanks. (by helios)

by iosgaming700

Error: Expression Must have a pointer type

title character.cpp bool Character::addItem(Item *item) { if(item->m_iType == BATTLE_ITEM) { BATTLE_ITEM->addItem(item); //error occurs here } else i...

[3 replies] Last: fixed.. THANKS (by iosgaming700)

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General C++ Programming - November 2017 (Page 13)