General C++ Programming - C++ Forum

Pass a vector from a pushbutton in dialog class to ONDRAW () in the view.cpp

I am creating an SDI to plot a picture pixel wise using pDC->setpisel() I have a large 2D vector which is generate in PLOT button in a dialog . On pressing the...

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by xcalibur0645

Basic Sentence maker

Hello guys. I'm just 12-years old and I have developed a simple sentence making program. Here's the code: #include <iostream> using namespace std; int main(){...

[2 replies] Last: [quote=xcalibur0645] "I'm just 12-years old" Age carries no weight. ... (by closed account zb0S216C)

by slaidas

I'm developing compiler(need help with parser).

#include <iostream> #include <string> using namespace std; string input; string output; string type; void Scan () { if (input == "Console") {ou...

[1 reply] : If you don't know how to parse, then you may as well stop. Compiler de... (by closed account zb0S216C)

by Need4Sleep

Operator overloading to read in an array

I want to read an array into a class i call _Array using the operator ">>", but im stuck as to overloading the function. Here's the code: _Array.h #ifndef ...

[6 replies] Last: Ah, I misread. (It was a long day for me.) Why are you using operator... (by Duthomhas)

by Exispistis

String getline function

Hello, everyone! Can anyone tell me what is the (cin, not istream) getline function for a string, with some example code if possible, please? Thanks!

[7 replies] Last: Yes I could get .. I was sucess ful in that aspect.. If I click on th... (by tarkes)

by Awareness

Accessing inside a structure via using a struct pointer to a struct pointer

#include <stdio.h> struct datastructure { char character; }; void function(struct datastructure** ptr); int main() { struct datastructure t...

[3 replies] Last: HINT : Operator -> has a higher precedence than the * operator. (by guestgulkan)

by ibrakola

touching objects in a scene

Hello, I randomly generated in a scene, the tetrahedra contained in a box without them coming into contact with the one, nor with the box. I manage to generate ...

[no replies]

by dthkai

LowerCase pointer Function

Hi!, I'm trying to make a lowercase function, the problem here is that, I don't know how can I assign a char array to a pointer, I'm using calloc to alloc the m...

[6 replies] Last: Hi!, I did solve this code, without the use of tolower functions, I'm ... (by dthkai)

by jonatashille

Operator Overloading <

Hey guys, i'm doing a Bin Packing project and need some help with the Overloading of the operator < ! I have a list of objects pack, as a vector. my packs obj...

[3 replies] Last: Try this code, this may work for all the cases: #include <iostream> ... (by pradeep kumar)

by newbie777

VS C++ 2010 help

Message deleted.

[3 replies] Last: You don't need to delete your post. http://cplusplus.com/articles/oGL... (by Stewbond)

by Lostzn

please delete this topic

please delete this topic

[4 replies] Last: Sigh, another one. Please OP, read this: http://cplusplus.com/articl... (by Stewbond)

by htirwin

debugging when you don't have noticeable errors

When your program seams to work as expected and you don't know of any errors, is there still a debugging process you should follow before releasing it. Besides...

[1 reply] : Usually you build a checklist you must see fully checked before releas... (by webJose)

by MAQAH

passing character array from functions

I need to pass one charcter, and the function will print the expected result. #include<ncurses.h> void passchar(int=24 , char='f'); int main() { inits...

[2 replies] Last: rather than that is there any way to print the character which we inse... (by MAQAH)

by programmeraie125

how to get a enum to change colours of sprites

okay so i am trying to get my sprite to draw in 4 different colours, everything about the sprite is the same except its position and colour.I am trying to get T...

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by morgred

ifstream and getline

What do i want to do is read from a file, one line at a time with the condition of stopping when a certain character or a couple of characters are encountered. ...

[2 replies] Last: that was a terrible thing to omit. excuse me while i shoot myself. in ... (by morgred)

by cscho0415

codeblocks gdb error

OS: ubuntu 12.04 x64 IDE: CodeBlocks Error: "warning: GDB: failed to set controlling terminal: operation not permitted" Would someone please shed some lig...

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by usersint

pointers1

main() { char a,*b; int i; float f; a='Z'; i=20; f=3.14; b=&a; printf("a= %c b=%u\n",*b,b); b=(char *)&i; printf("i= %d b=%u\n",*b,b); b=(char *...

[1 reply] : The type of the expression *b is char . Sending it to printf which ... (by Cubbi)

by ekisner

Memory Leak

I'm using Visual Leak Detector and numerous calls to the crtdbg, within Visual Studio 2010, trying to find a memory leak. As best I can tell, I have a calloc...

[12 replies] Last: Thanks moorecm, in my actual code it was virtual already (out of neces... (by ekisner)

by Catfish2

new[0] Questions

#include <cstddef> int main() { volatile std::size_t zero = 0; char *p1 = new char ; char *p2 = new char ; delete p1; delete p2; } 1)...

[4 replies] Last: According to that link dereferencing a pointer returned as a request... (by ne555)

by Tylerich

Read in parameters from file with specified format

Hi, I have a problem reading parameters from a file with a certain format. Say, in my Program I have an Integer variable a, one double variable b, and one ...

[4 replies] Last: Thanks, that looks good! (by Tylerich)

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General C++ Programming - June 2012 (Page 28)