General C++ Programming - C++ Forum

so i've tried and tried and tried and changed my code about ten times in the last hour, its getting really frustrating, so i decided i'll sign up and ask for he...

[1 reply] : Hi. If your goal is to get random numbers without repeating numbers th... (by Repentinus)

by radeberger

mutex ownership problem

Hi, I have two threads in my application. thread 2 must wait for thread1 but it doesn't because thread2 runs before and takes the control, so how can I give ...

[10 replies] Last: great.. :) (by writetonsharma)

by CrimsonAngel

structs with list

so im making this struct and i want to include a list in it : struct student{ int id; list<classes> clist; }; well i...

[4 replies] Last: it might be same, but these were my view where the error can be.. :) (by writetonsharma)

by jwarnold

Error in using static map

I am a C# .NET programmer who has recently switched to c++, and thus my understanding on some things could be a little fuzzy... i am attempting to create a s...

[2 replies] Last: static member variables of a class have to be defined outside the clas... (by guestgulkan)

by chewykb24

value returning function question...

whats wrong with the following function? Thanks for any help!!! bool Greater (int a, int b) { if (a > b) return true; }

[2 replies] Last: yea i was thinking it was something along the lines of that, thanks. (by chewykb24)

by wretch

Code review, Proxy pattern, 64 lines

One of my primary C++ goals is to study all of the (Gang of Four) patterns, From what I understand, there are our common scenarios which would suggest use of...

[2 replies] Last: Thanks very much seymore15074 for looking at this. And yes, I agree... (by wretch)

by kevinchkin

Memory Allocation Question

Hi Guys, I am really confused. Basically, what I am trying to do is, I have a struct which has a data member a char * . Now this char * will allocate a...

[1 reply] : Memcopy just copies each member, so you will have two pointers pointin... (by Gumbercules)

by aeronet

Dev C++ Compiler Issue

Has anyone ever had an issue with Dev-C++ v 4.9.9.2 not producing a physical executable file after compiling? For some reason it's only creating all of the .O ...

[3 replies] Last: i use 5. somethingso i wouldnt know but my school used that version an... (by freakytb)

by jimctu

Pronlem with \0

hello ppl... well...i have a very strange problem... I have an array of chars, and a buffer, that read a text file and pass char by char to this array... til...

[2 replies] Last: uhn... ok, thx... i´ll do it like u said... ^^ thank u...it was v... (by jimctu)

by anu11sharma1123

i need code for point of sale using classes

i need a C++ code for point of sale system plz help me !! likefor taking the payments n genrating reciepts for their puchases.. i have a set of classes --l...

[no replies]

by engrob10

reading jpeg file

Hello, I'm a fairly new user to programming and my skills are still very young. I'm interested however in reading data from a .jpg file. I'd like to know ho...

[1 reply] : libjpeg http://www.ijg.org/ looks promising, I haven't used it though. (by Gumbercules)

by olove5

can someone give to me a tip to solve the main()

#include "10_exampr1.cpp" using namespace std; void includeName(); char GetString(char *msg); struct PersonNode{ char name ; ...

[3 replies] Last: char GetString (char *msg) { char s , i,*destinoItem; cout<< msg... (by Gumbercules)

by freakytb

encryption

I want to be able to encrypt my save files so that no one except for those whom have the extractor are able to read it. the way i am saving the files is... ...

[6 replies] Last: okay, i also noticed that i put the wrong file extension on for the sa... (by freakytb)

by tr4shb0t

Confusion about pointer object

I am a pretty experienced programmer, but there is one thing about pointers that confuses me. I will try and explain the best I can: Normally in a function l...

[1 reply] : The pointer is destroyed, not the thing it points to. (by jsmith)

by KarlisRepsons

array equality trickiness

Hi, I would appreciate, if someone explains me why is this true: a == *(a + i) == *(i + a) == i #include <iostream> using namespace std; int mai...

[10 replies] Last: See: Not that it has any practical use beyond that of obfuscated... (by jsmith)

by comput14

how to check for spaces in a line of words

how to check for the number os spaces in a line of words? wad code must i use? is it isspace()?

[4 replies] Last: Also std::count_if( text.begin(), text.end(), isspace ) if by ... (by jsmith)

by galaxy

The Destructor ruins everything

Hi everybody I really have a problem with calling the destructor Yes, the destructor ruins everything to get you in my problem I'm working with lists of s...

[2 replies] Last: Thnx bro It really worked now I understand everything (by galaxy)

by bito

functions

how do i go about his question,am required to write code that prompts the user to enter 2 characters and an integer and the out put should display the character...

[1 reply] : 1. get the chars and the int 2. have 2 nested loops and output in the... (by Bazzy)

by olove5

Problem with main()

#include <iostream> #include <cstdlib> #include "10_exampr1.cpp" using namespace std; void includeName(); char GetString(char *msg); struct Pers...

[no replies]

by comput14

controlling the output on each line

how do we control the number of output on each line? #include <iostream> #include <cstdlib> using namespace std; int main(void) { int number; for...

[2 replies] Last: thanks man csiz u r the greatest (by comput14)

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General C++ Programming - March 2009 (Page 3)