Beginners - C++ Forum - December 2012 (Page 47)

by pen

int main() { int i=512; char *c=(char *)&i; c =1; printf("%d",i); return 0; } Can anybody clarify me the step by step execution of the above pr...

[4 replies] Last: Oh great! It was really very helpful to me :D (by pen)

by Wurter

Xor two arrays of varying length

I need to xor two arrays of varying length. This is what I have so far // EXERCISE 7# unsigned char a = {0x11, 0x22, 0x33, 0x44}; unsigned char b...

[1 reply] : What do you plan on comparing b and b to? You can't compare it to t... (by Stewbond)

by Leofas725

Creating a Loop

I'm looking to create a loop that will have the play retype a variable if they type in the wrong one. this is the current line om working on cout << "\...

[2 replies] Last: Say I want it to always display the error message if they player does ... (by Leofas725)

by closed account ShpjE3v7

Function showing BMP doesn't work

Hi, I'm from Poland so sorry for my bad English. I was created a function showing a BMP image. But it doesn't work when i try to compilate this (I'm using...

[no replies]

by Stewbond

Default template

We can set a default type for a template class like so: template <class T = double> class someClass { T m_member; }; The above compiles only if I declare...

[no replies]

by closed account LN7oGNh0

Simple Calculator NOT WORKING!!!

Basically, the calculator i programmed does not work. I did some forward declarations of the functions that I was going to use in the program but when it did ...

[14 replies] Last: If there's any clash of names in the std namespace, its a good reason ... (by Chervil)

by ab123

Copy or reference?

I have a function like this in class Report: inline const Info& GetInfo() const { return *info;} info is declared in the same Report class as: Info* in...

[2 replies] Last: new_info will be a copy of the Info object in my_report. Using the set... (by Peter87)

by mistabob

How do I get the compiler to tell me my errors?

So I wrote this Binary Search Tree, and it's full of errors. I'm trying to fix these errors so I can get it to compile and make it actually work. However, I'm n...

[1 reply] : ok, so the error I listed was caused by a mis-matched {, I fixed it, s... (by mistabob)

by Emwat Oon

War Card Game - Shuffling a deck

I'm working on a C++ project using Visual Studio 2010 and I'm trying to program the card game War. I figured the steps would be 1) Declaring 52 cards (Done) ...

[13 replies] Last: Nice!!! So have written some similar code to this, but I am trying to ... (by socceraddict)

by jxovi10

c++ help

every time i try to run my program i keep getting an identification error for empInfo. i tried putting int empInfo; but it wont work can someone please help me ...

[2 replies] Last: empinfo is the name of an array, defined in function main(). emp... (by Chervil)

by cowless

file input problem

So I found a way to just input my file and just see what happens if I just read it in and print it back out using this: #include <fstream> #include <iostream>...

[no replies]

by jeckel7234

Forward slashes? Writing an operation

The Problem. A for loop header that uses a counter variable has the form for (int i = 0; i < n; i++) Declare a counter variable i and rewrite the for loop head...

[2 replies] Last: thats what i was thinking, i just didnt know why they didnt just use 2... (by jeckel7234)

by vckngs7

xml parsing

I am looking for a good overview of c++ xml parsing practices. I am using tiny xml parser and the algorithm that I have developed to extract information is quit...

[no replies]

by Pianokey09

Processing Data From a File

For this problem I am supposed to write a program that will not only invoke a file but also process the data within the file. The problem I am having is I don't...

[2 replies] Last: "invoke" is meaningless in this context. Valid file operations include... (by Chervil)

by nickcplusplus

reversing a linked list (nodes) random crash

I'm trying to write a function to print out the values of a linked list's nodes in reverse, it works perfectly fine, but causes my program to crash once it fini...

[2 replies] Last: it still crashes if I use while (cur-> next!= NULL) (by nickcplusplus)

by Stewbond

is (false < true) ?

I'm writing a class to check for differences in discretes (bool), but I want it to be applicable for other types as well. This prints in my compiler (VS2008),...

[4 replies] Last: Thanks guys! That's exactley what I wanted to know. I had thought ... (by Stewbond)

by cheshirecat

Frequency of characters in array

Hello, I'm reading a text file and I'm trying to count the frequency of each letter. Assuming the whole document is uppercase, this is what I have so far. In th...

[19 replies] Last: Dude I don't know what to tell you. I just copy and pasted my code tha... (by jlillie89)

by DJLad16

program outputs word vertically

#include <iostream> #include <string> #include <vector> #include <algorithm> #include <ctime> using namespace std; int main() { vector<string> wo...

[2 replies] Last: Yes, sorry for the late reply. I forgot about this post, and why? (by DJLad16)

by Kabooss

IntelliSense Errors

Ok, so in short, Im doing A level computing, and for my coursework I'm writing Battleships. So far all's been going well, but recently, I have added a 'Valid...

[4 replies] Last: Thank you very much! will let you know how I get on :) edit: I have f... (by Kabooss)

by tsnofvdr

Struct member manipulation

The following Ada95 code snipit allows me to define how the compiler handles the fields of my record. Will C++ allow me to accomplish this same task and if s...

[2 replies] Last: I found what I was looking for...bit field packing thank you (by tsnofvdr)

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Beginners - December 2012 (Page 47)