General C++ Programming - C++ Forum

by breadbread1984

I want to get a backup of a object. So, I was going to write a copy constructor for the class to copy this object to a backup one. But I found several raw point...

[4 replies] Last: Thank you all for kindly helps. I find that serialization of boost lib... (by breadbread1984)

by poonninja

member function changing class variables

hello everyone, I'm trying to learn about classes. I've got the basics down. but one thing that I'm confused about that i cant find the answer to is if a class ...

[1 reply] : Neither is correct. The first would only be correct if they were stati... (by LB)

by dkaip

where i can find from conio.h the rest of files?

Hello. I am trying to scan keyboard chars with getch(). char ch; string password; while ( (ch = getch()) != '\r' ) { passwo...

[1 reply] : I think this is part of turbo c.. but they doesnt seem to be part of s... (by writetonsharma)

by jtjammer

Overriding Base-class data member in a Derived-class

hello all, I'm creating a Base-class with a GetVersion function. I want each Derived class to return a unique answer. The compiler (GCC) insists the Base...

[3 replies] Last: This seemed to do the trick: http://www.learncpp.com/cpp-tutorial/114... (by jtjammer)

by wadeeh1990

i need fix err file no to ok > 2*G

i need fix err file no to ok > 2*G I:\skynet091src_fixed\main.cpp : fatal error C1126: automatic allocation exceeds 2G /** Remove a file ...

[8 replies] Last: !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! Who... (by Moschops)

by chr15chr15

Problem with inheritance, pointers and initialiasation lists.

Ok here's an example of the problem im having: class obj{ protected: int x; public: obj(int); }; obj::obj(int x1): x(x1){ } class some...

[10 replies] Last: Thanks for the help. (by chr15chr15)

by Albert Hendriks

c character array with null chars

Hello all, This is my first post. I have a c++ program and a c program. The c program produces data to standard out that the c++ program should read. The dat...

[5 replies] Last: Moschops, that's the whole point. My char arrays contain null characte... (by Albert Hendriks)

by bacpp

function-definition

I am trying to run a program and have defined the following function in main()..the relevant code is below. istream& read_work(istream& in, vector<double...

[3 replies] Last: that was my silly error....thanks for pointing it out...it worked. (by bacpp)

by h9uest

Embed search engines into my C++ code

Hi all: I need to write a program in C++ that can search through google and other search engines. For example, it accepts the user input of "cat", then it...

[7 replies] Last: @Galik: Many thanks! I've decided to temporarily go on with the main ... (by h9uest)

by DCS2012

Incorrect answer generated by program?

#include <iostream> #include <cmath> using namespace std; double MissingSide(double dX, double dY, double dA); int main() { double dM, dN, dP; ...

[3 replies] Last: Also 1 small thing... Is angles in degree or radians? http://cplusplu... (by eraggo)

by kirvy

hi to all

please help me . I want to know how to make a blinking character in c++ . tnx

[7 replies] Last: @kirvy please help me . I want to know how to make a blinking characte... (by CppSpartan)

by costaaa

Miles to Kilo table question?

How does this look to everyone? I am displaying 2 rows side by side that lists miles-kilo conversion. This is what I have so far. Anyone have any pointers or...

[1 reply] : error message I receive 1>.\Debug\test.exe.intermediate.manifest : g... (by costaaa)

by Nisheeth

Info about <graphics.h> header

I don't know if there is a newer version of this header file (i.e. without the .h extension) is there or not. But can anyone give me a link about the header ...

[3 replies] Last: Found a link. For anyone else interested: http://www.programmingsimpli... (by Nisheeth)

by V1sk3y

Splice elements from list that meets a certain criteria

Here's what I want to do: Two consecutive integers in a list (or perhaps vector) should meet a criteria given by a function. If (CriteriaFunction(int1,int2) re...

[8 replies] Last: When I tried both my code and yours with a large number of executions ... (by V1sk3y)

by SameerThigale

What does this statement mean?

int main(array<System::String ^> ^args) { return 0; } Im asking about: array<System::String ^> ^args Whats this: ^>

[3 replies] Last: The bitwise XOR operator, yes. But the usage of ^ in the example you p... (by LB)

by SameerThigale

Help with a concept?

like, int arc ={1,2,3}; cout<<arc ; //error In this example, I get some big number displayed(in spite of getting an error), what does this number me...

[6 replies] Last: Thanx a lot for the explanation I asked a lot of ppl round here, but ... (by SameerThigale)

by exbow

it doesnt recognize my header files... why?????

#include "MAP.h" #include "PLAYER.h" #include <cstdlib> #include <ctime> #include <iostream> using namespace std; int main() { srand( time(0) ); M...

[4 replies] Last: i figured this out thx for the help! (by exbow)

by chulio

problem with strcat() and argv[]

Hello, i have the code: #include <string.h> #include <iostream.h> int main(int argc, char** argv){ if (argc < 2){ cout << "\a"; ...

[1 reply] : http://www.cplusplus.com/reference/clibrary/cstring/strcat/ strcat ex... (by Moschops)

by TnGraham

How to declare a varibale as null

I have a program where when I first initialize a CString varibale I want it to be null. I put this: CString temp = ""; Will this make it null. Becau...

[10 replies] Last: What I was after (from the OP) is if the aim is to have an CString obj... (by closed account z05DSL3A)

by chulio

About Copyright

Whats your opinion about copyright? Do you copyright your programs? If yes, is there any good documentation on how to do it?

[3 replies] Last: I was told even Open Source project source code have Copyright notice?... (by sohguanh)

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General C++ Programming - July 2011 (Page 20)