General C++ Programming - C++ Forum - November 2009 (Page 10)

Hello there, I want to know how can I use the line from a matrix as the source for a getline function. I have a matrix that stores several web pages. Each l...

[6 replies] Last: I imagine v is a matrix, and v gets the i-th string in it. If this is... (by Zhuge)

by JS12345

Assignment with classes

Can you please find errors my program for minesweaper in which I needed to use classes.Here it is: #include<ctime> #include<iostream> #include<cstdlib> usin...

[5 replies] Last: This is a problem too: if (x,y<=8) (by jsmith)

by larry burns

problem with ofstream?

The code I have a problem with has been shortened so that only the relevant part is in this message. I have a problem with this code in that the value for heigh...

[1 reply] : These are all assignments, not comparisons: if ( (height =heigh... (by jsmith)

by NinjaLink

Reverse elements in a Queue Problem

Hello, I need help reversing elements in a queue using Recursion. My problem is that when I print out the reverse, it does not show the numbers on the screen. H...

[3 replies] Last: If all you did was add a few print statements into reverseQueue you ... (by jsmith)

by handra

Array Initialiser

Hi All, I am interested by code asked by my friend. The code is below: 1 int a [ 2 ] = { 1 , 2 } ; 2 int b [ 2 ] = { ( 1 , 2 ) } ; 3 4 cout << a [ 0...

[2 replies] Last: Dear Disch, Got it now... It's cool ... Thanks for your reply ..... (by handra)

by shertay

Switch Case Statements

Hi, Wanna check is there any reachable code in the following? Switch (temp) { case '1': .... break; case '2': { if (condition t...

[1 reply] : The if would only be unreachable if temp was a bool or there was an un... (by helios)

by shertay

Default parameter in inherited virtual function

Hi, Does the following code make sense? class Base { protected: virtual void func (bool state = true); }; class Derived : public Base { p...

[6 replies] Last: I doing parasoft unit testing and got reply from that then the rule in... (by shertay)

by NinjaLink

Print function for Queues

I need help with my print function, so I can print the elements in a queue. The print function, that I have now is the last function in my header file. I tried ...

[7 replies] Last: ahh, I finally figured it out! Thank you guys for leading me in the ri... (by NinjaLink)

by bob10

ostringstream doesn't work with string and integer

Hi there, i'm trying to use a ostringstream to insert two integers in a string. This is my code at the moment: bool SimuClient::bInitialisiereGrafik(int s...

[6 replies] Last: The problem was that I compiled in Xcode for x64. Switching to i386 s... (by bob10)

by jcylam

values for Handle, Dword, etc

http://msdn.microsoft.com/en-us/library/ms645565(VS.85).aspx the function that i want to use. USHORT usUsagePage and usUsage are both information passed o...

[9 replies] Last: Yeah, it's http://msdn.microsoft.com/en-us/library/aa383751(VS.85).asp... (by closed account S6k9GNh0)

by neken

a basic vector<> class and memove

When you erase data from a custom made vector in the middle of the buffer, when is it safe to assume you can memmove instead of looping and doing a operator=() ...

[12 replies] Last: Not that I disagree, but vector has better performance if you need lot... (by Disch)

by jcylam

Trouble with MS SDK function (1,2)

I am trying to write a c++ program so i can get a gaze tracker to work like a mouse moving the cursor. However, when I used the function WM_INPUT it says i need...

[22 replies] Last: i see i see, thanks so much grey. (by jcylam)

by strongdevil

[Problem] Segmentation fault when using list iterator

Dear everybody, I got a segmentation fault but don't know what went wrong. I searched this forum but couldn't find any help. Here is the code I have a l...

[2 replies] Last: Thank you so much for your responsive and helpful answer, helios. I di... (by strongdevil)

by thehumm09

Can't figure this out. Urgent.

After the program calculates the triangle from the first line of the file, I need it to calculate, triangle number 2 from the second line of the file. How would...

[2 replies] Last: You don't check for end of file or stream going bad. Instead, you rel... (by kbw)

by senys

Polynomial class(urgent )

P(x) = a0 + a1x^1 + a2x^2 + · · · + anx6(n) (note that a(n) is != 0) value n is called the degree of the polynomial and is stored in the data member degree....

[5 replies] Last: thanks .... (by senys)

by kibestar

Median calculator

Hello, I made a program to calculate the median of the numbers you enter, however, I'm using a global pointer. By what I've read in the internet, global variabl...

[2 replies] Last: You should clean up your dynamically allocated memory when you're done... (by jRaskell)

by vijkrr

how to compare unsigned int and int ?

hi int main() { unsigned int u = 10; int i = -1; if ( i <= u ) { cout<<" I is less than "<<endl; } else { cout<<" U is less than...

[2 replies] Last: If you want to actually compare them, you will have to cast them both ... (by firedraco)

by ohsnap1319

Rows, Columns, Fields C++ program

Hi everyone! Here is the problem I was assigned: Write a program that prints out a series of fields of stars(*). Each field will have n rows and m columns....

[2 replies] Last: Do you know the difference between passing variables by value and ... (by guestgulkan)

by kenr

relationship between string bool operator and map container class

Sorry gents but I'm still not clear how the bool operator function relates to the <map> container class. I understand the common element between them is the cla...

[1 reply] : std::map is an associative array that uses an internal binary tree. I... (by kempofighter)

by DJDANG

Why this doesn´t work!!!

Hi everyone, could anyone tell my why is tht this codeline does not work?? given Arco as template<typename Arco> map< vector< int >, Arco >::iterator iter...

[2 replies] Last: It doesn't make much sense to me. Why would you want an entire array ... (by kempofighter)

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General C++ Programming - November 2009 (Page 10)