Beginners - C++ Forum - January 2011 (Page 22)

Large numbers - which type should I choose ?

Hi there, I've a question regarding large numbers. My program needs to read max 10^20-digit number and I'm wondering which type is best for this. I tried ...

[6 replies] Last: Unsigned long long sounds fine then :) I'll use it, and write my own s... (by john891)

by vagelis

what does this code do??

template <class x> void destroy(x* a) { a->~x(); } int main () { int x=5; destroy(&x); cout<<x; //d.foo(); cin>>z; } i thought that the...

[6 replies] Last: The destructor for int does not modify the memory locations that the i... (by jsmith)

by I Need Help

Drawing Graphical Images

Can someone direct me or explain to how to draw graphical images in C++? Just a simple stick figure.

[14 replies] Last: actually, that calls shap_ccc.h which does have a cpp, so you'll need ... (by cran)

by Whirled Peas

Noob question about pointers and arrays.

So I'm originally a python guy and had to switch over to C++ for a project, I used to know C++ somewhat before(long time ago) and am getting back into it. Anyw...

[3 replies] Last: This: b is interpreted identically to *(b+0) which yo... (by Moschops)

by vagelis

char **b=new *char[5];

the compiler gives an error with that.. how can i define a table that has pointers of char??

[1 reply] : I'm thinking the '*' goes on the other side of the char if you are cre... (by cran)

by jasmin

what does this error means?

i have an er here : warning: no newline at end of file what should i do whit it? where did i go wrong? here is the hole program: #include <iostream> #inclu...

[4 replies] Last: thank you so much! its working now :) (by jasmin)

by qurilly007

How to Display C++ output as Page wise

Hi Expertz; I am displaying a line by n number of times using loop. So if the number of lines exceeds the size of the screen then How can i make it display ...

[1 reply] : depends on how you are outputting... are you doing something like: ... (by cran)

by Soap360

What's the difference between C# OVER C++?

I've been writing programs from quite a while now, just recently I began learning game programming with a few buddies. I'm looking forward to start XNA, which u...

[1 reply] : Take a look at this http://www.thinkingparallel.com/2007/03/06/c-vs-c-... (by Return 0)

by Battousai

Modulus operator with array

So I just completed the first part of my assignment via someone elses thread so I figured its actually time for me to put a thread in the correct forum. I have ...

[2 replies] Last: pletter2 doesn't have a null char to stop it... you'd be better doing ... (by cran)

by hottiefee

Fraction Program...too many functions?

Hi all. I have been working on a program to add fractions. I want to eventually +, -, *, and / fractions. When I run it all I can do is enter two fractions and ...

[8 replies] Last: How I handled add(): void simplify_fraction(int &num, int &denom) {... (by wolfgang)

by asibuan

Can any experts let me know where i go wrong in here ? (1,2)

#include<iostream> #include <vector> // vector Library #include <string> #include<fstream> // file stream L...

[36 replies] Last: http://www.cplusplus.com/reference/iostream/istream/get/ that is th... (by cran)

by gberg927

Concatenate char to char*

I am trying to concatenate a char to the end of a char*. I have a char* result that i want to add a character to the end of it. I'm not sure if I can do this wi...

[11 replies] Last: you probably should take things out of global scope ... plus if you wa... (by cran)

by Lucas Simpson

Randoming and other basic info

Hey, I am a complete newbie to C++, and i was looking through your tutorial, and its amazing, but when i got to the arrays part it still left me wondering: 1. ...

[4 replies] Last: hey so i found that because when i base a random number on the ti... (by Lucas Simpson)

by asibuan

problem with a code. (1,2)

class include_function { // new class called include function public: long datetoday (string date) { string da...

[20 replies] Last: im gona open another topic for the whole code (by asibuan)

by cstorm

Interested in System()

Since starting c++ programming 4 months ago in my highschool class, When I learned system commands, I thought "wow these are helpful, (for ex, system("cls"), sy...

[10 replies] Last: http://www.cplusplus.com/forum/beginner/1988/page2.html#msg10636 http... (by Duthomhas)

by I Need Help

My command prompt will not stay open (1,2)

Here is the code: #include <iostream> using namespace std; int main() { int iPlayers; int iHours; int iPoints; int iGames; int i...

[34 replies] Last: lol, I was having fun with the first part, hence the ;p .. but dividi... (by cran)

by amccorm

memory leak

Hey guys, I'm trying to understand memory leaks better. Specifically, a program (numerical simulation) seems to have a small memory leak despite me avoiding ...

[9 replies] Last: they are actually handy when you have no other choice, but there is no... (by cran)

by plokij

converting simple Python code to C...

Hi, I am having a bit of trouble converting a simple Python code for computing factorials into the C language. Python Code: import sys def fac(n): f=1 ...

[11 replies] Last: Undefined reference errors generally mean that the linker cannot find ... (by Moschops)

by acorn

parsing main

giving the function main int main(int argc, char* argv ) { } can someone show me how to parse commands passed through main. also how do i test it ? ...

[14 replies] Last: ok that was the problem thanks guys. i learned tons with this exercis... (by acorn)

by Metallon

Class object member of another class

I have a fairly simple class, and I want objects of another class to be private members of that class, and objects of that class are initialized with a value th...

[7 replies] Last: So I just put objectA, objectB etc. in the MyClass private members' pa... (by Metallon)

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Beginners - January 2011 (Page 22)