C++

Forum

General C++ Programming - September 2012 (Page 30)

When are rvalue references to primitive integers short-lived or long-lived?

I have done some experimentation on rvalue references with the TDM-GCC 4.6.1 compiler and made some interesting observations that I cannot explain away with t...

[1 reply] : Returning a local variable by reference is undefined behavior, regardl... (by Cubbi)

by AleaIactaEst

Integer logarithm with base 2

Hi, I'm currently working on a template class which basically works just like the int type, but stores the (signed) integers in their binary representation u...

[6 replies] Last: Oh you're right. That's a nice and simple solution :) Problem solved,... (by AleaIactaEst)

by Haroonrulz

Issue with program to automate excel

Dear C++ Gurus/Experts, I am writing a program to automate excel.My program is working well when I use integer (Write/Read) in excel.My program also works we...

[2 replies] Last: Thanks for your help Mr.Kbw.I am able to proceed further. (by Haroonrulz)

by suryakalam

Reading Binary files

Hi, I am trying to write the code to read binary files which is generated by other system say X X generated the binary files using cobol code. it consists o...

[4 replies] Last: thanks i am able to read (by suryakalam)

by vw4x4

please give an example fot the following situations.

1)unsigned short is converted into int,if short is smaller than int.please give an example of this situation. 2)if two are of the same size,then unsigned short...

[1 reply] : 1) unsigned short x = 0; int y = 0; std::cout << typeid( x + y ).nam... (by vlad from moscow)

by Haroonrulz

Issue with program to AutoSave excel in C++

Dear Gurus/Experts in C++, I am creating an automation tool, for that I have to autosave the excel with strings.I can read/write in excel, but when I try to ...

[no replies]

by vw4x4

uses of type conversion?

1) what are the uses of type conversion? 2)what are the uses of forcing data types to be stored as another data type? 3) 0x8000=32768. 0x8000 is stored as uns...

[1 reply] : 3. Because hex notation is typically used with bitwise operations. Bit... (by helios)

by ycai77

template programming problem

I encountered a problem where the template function defined in a separate file couldn't be found by the g++ compiler. Case 1: the template function is defined ...

[1 reply] : Back in 98, there used to be a keyword in the standard that let you de... (by helios)

by clc0608

Binary Trees and Linked Lists

Hi, I've been trying for quite a while now to solve this problem sheet but I can't seem to get an answer that seems remotely close. To make it worst I can't ...

[2 replies] Last: It's the last two questions, the combination of Trees and Lists (by clc0608)

by Henri Korpela

C++11 - Using move semantics in a for loop?

Hi, there! Yes, you read the title correctly. But why, you may ask now. Well, allow me to demonstrate: for(unsigned int i = 0; i < vector.size(); i++) As y...

[5 replies] Last: Thank you for the replies! I didn't come to think of it that compilers... (by Henri Korpela)

by james16

String Manipulation Problem

Question: After dinner at a Chinese restaurant, Batman and Robin had a fortune cookie each. Both cookies contained the same fortune written on a single line ...

[2 replies] Last: thanks alot man. thats a really smart way of doing it. (by james16)

by Hashimatsu

C/C++ compiler app, Nokia?

I have a Nokia N8, and want to be able to whrite and compile C++ 'on-the-go'. Does anyone know of any simple app download for the Nokia N8 to whrite and compile...

[2 replies] Last: Both codepad.org and ideone.com is what I'm looking for, a debug and c... (by Hashimatsu)

by kajondra

Program that finds the surface area of moon.

#include "stdafx.h" #include <iostream> #include <iomanip> #include <cmath> using namespace std; const double PI = 3.14159265; const double ...

[1 reply] : @kajondra Very impressive. Can you convert that to square miles? Also... (by whitenite1)

by russiandobby

incomplete type is not allowed error

so this is the only error i have in my code but i cant figure out how to fix it, here is the code below. note its broken into 3 files. //date.cpp #include <io...

[3 replies] Last: What is the content of "date.h"? A am sorry. Please show anew your tes... (by vlad from moscow)

by salmanmanekia

Question regarding Multiplatform (Linux AND Windows)

Hi, I have to create an application which can be executed in Linux and Windows. My question is : 1: Will i have two executables. Each for an environment? ...

[1 reply] : 1. Yes. It can be hard to make executables that works on all Linux dis... (by Peter87)

by Nandeesh H D

How to make the content of a 'char*' to 'char*'?

char chArray = "0123456789"; char* ptr = chArray; char* ptr1 = "chArray"; using namespace std; int main() { cout << ptr1<< endl; return 0; } When ...

[2 replies] Last: You could substitute ptr1 for ptr in the statement cout << ptr1<< end... (by vlad from moscow)

by pratik1sharma

bitwise negation operator

can any one tell me how ~ operator works., int i=2; printf("%d",~i); when i did so, the o/p comes as -3,how..????

[3 replies] Last: ~changes all the bits of the variable, including the bit containing th... (by bartoli)

by BasicNewbie

Help with ifstream and store dynamic array

Thanks vlad!

[11 replies] Last: Consider a simple example #include <iostream> void f( int x ) { x =... (by vlad from moscow)

by ljs

computing factorial using recursion

In many textbooks they use a function to compute the factorial of an integer using a recursive algorithm. Does anybody know if that is just because it is a nice...

[3 replies] Last: The problem is that not all compilers support the tail recursion. If a... (by vlad from moscow)

by manueldl

Recruiting C, C++ Developers

Experienced C, C++ developer for great job opportunity in Mexico. Send email to manueldl@mx1.ibm.com

[1 reply] : I am an experienced C/C++ developer including also expirience of writi... (by vlad from moscow)

September 2012 Pages: 1... 28 293031 32

Archived months: [aug2012] [oct2012]

This is an archived page. To post a new message, go to the current page.