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General C++ Programming - July 2013 (Page 8)

#include<string.h> #include<stdio.h> void main() { int i=0; char choice; int count=0; int row,seat,rw,r,s,x,se; int waitinglist=0; char name ; char smoke; char...

[8 replies] Last: You don't know how do indent? You tab/space your code so it's easier t... (by closed account N36fSL3A)

by Johnny111111111

I need help

So I programmed this big application in Win32, I left the cursor the same, but I want to give the user the option to use some pre-made cursors, or upoad there o...

[6 replies] Last: i think, Anyone do it... (by Tracyise)

by Indikator

random_shuffle question

Hi there, I'm looking to have the list of words in the vector shuffled randomly each time at the start of the program. However, they shuffle in the same order e...

[7 replies] Last: I got it to work using shuffle() . However, it's using some syntax th... (by Indikator)

by fuzzylr

Vector issue / Classes

I am having a weird issue with vectors. I can put items into the vector. But when I got to look inside the vector it's empty. See code below. Sean int ...

[8 replies] Last: I fixed this issue. I just re-wrote the entire program from scratch. ... (by fuzzylr)

by SwagMaster96

Exporting to Excel

I'm trying to import table from a txt, isolate and change some of the data (ex: utc to gps time), and export that new data into excel, probably as a csv. The te...

[1 reply] : Open MyExcelFile in append mode - http://www.cplusplus.com/reference/f... (by norm b)

by RLC

can't enter phrases in loop

getline is not readable after first time through loop. It skips that line and goes to Do you want stop entry? line. I would appreciate any help that I can ge...

[9 replies] Last: Hi Andy, I modified the program again and it now works. The placeme... (by RLC)

by Austin J

Good Physics Book?

Most games have some form of physics. I'm taking a class when we get back in school but I'm impatient, does anyone know some good physics books that seem to go...

[7 replies] Last: I've gotten the book digitally, thanks it's not bad. It certainly assu... (by Austin J)

by superfury

VGA Sequencer register 4 Odd/Even?

When I look at DOSBox's text modes, it sets VGA's Sequencer Memory Mode Register bit 4 to 1 to enable the Odd/Even modes, but when I look at the VGA docs ( http...

[no replies]

by renzboi21

Help with nested While!

The code only executes the nested while once.. why?? int main() { int base, expo, power; while (base!=0 && expo!=0) { count = 0; cout<<"Enter...

[5 replies] Last: Tnx Guys, got my code to work.. *I was told to do this exercise using... (by renzboi21)

by AmyWalker

Urgent Question about data types

Hi guys, I'm new to the forum and I have the 2 following questions regarding data types. I'm torn between choosing A and B for #1, and torn between choose A...

[3 replies] Last: @AmyWalker #1 what if int is 16 bit on the platform? wouldn't that ... (by vlad from moscow)

by kulkarnisr

how to do Precision with ostrstream

Hi all can you help me in setting precision for the float value for eg.. ostrstream out; float fvalue = 2.7889 out << fvalue; if I take the valu...

[3 replies] Last: thanks you andy and ats15 (by kulkarnisr)

by nkhau

How to run this while loop?

char choice; while (choice !='E') { printf("(A)"); printf("(B)"); printf("(C)"); printf("(D)"); printf("(E) Quit"); printf("ENTER CHOICE : "); scanf("%...

[1 reply] : I done see much of a code problem, a tip to go to the next line to mak... (by Tertius Kgatla)

by Bleedz129

Input number as string in an array.

Hello. I need to ask the user to input a number, and then put the number in a string array. so for example if the size of the number was 4: example 1200 i woul...

[5 replies] Last: by array here you mean character array right? (by c0defisher)

by vRltwE

How to change the cell text color in a QTableView?

I've tried this (without success): ui->tableView->model()->setData(ui->tableView->model()->index(5, 5, QModelIndex()), QVariant(QColor(Qt::red)), Qt::Deco...

[6 replies] Last: try this: QVariant MyTableModel::data(const QModelIndex &index, int ro... (by norm b)

by edfed

delete pointers from vector

i have something like this: class A { }; class B : public A { }; class C : public A { }; B*b1; B*b2; C*c1; C*c2; vector<A*>vec; int main() { vec.push...

[7 replies] Last: For what it's worth... if you use smart pointers, you'll never have th... (by Disch)

by r 4 raja

how this output displayed??

#include<iostream.h> #include<conio.h> void main() { int x ={1,2,3,4,5}, y ={5,4,3,2,1}, result ={0,0,0,0,0}; int i=0; while(i++<5) result =x -y ; clrsc...

[17 replies] Last: this program writes into memory past the end of the array result , in... (by BranL)

by Sephiroth

Integer sizes with cstdint...

I am currently working on a Windows and Linux program that will share configuration files. It will be compiled as both x86 and x64 on both platforms. With that ...

[5 replies] Last: Can you explain to me why my fwrite example is wrong? I will look up s... (by Sephiroth)

by Christian99

how to pass object to a class which stores it in a container as unique_pointer

class A (abstract) class B : A class C { void add ( A(&*?) a ) std::vector<std::unique_ptr<A>> data; //unique_ptr<A> because A is abstract and therefo...

[10 replies] Last: A wee bit more robust: void add( T*&& p ) { seq.emplace_back(p) ; p =... (by JLBorges)

by haroonRasheed

Operator overloading,comparing objects

i'm trying to compare 2 fractions using operator overloading the program crashes when this is called; this is defination; bool operator == (const Fractio...

[7 replies] Last: ahan thanks (by haroonRasheed)

by matiz303

syntax question

Hello, Line 1 passes &C::increase_member to the thread constructor in the below code. I do not understand what &C means here. Can someone please explain? tha...

[3 replies] Last: No, that would be a different expression with different meaning (to be... (by Cubbi)

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