Beginners - C++ Forum - July 2008 (Page 9)

My code: #include <stdio.h> #include <math.h> int main() { double dbl1 = 1.0 / 10.0; printf("dbl1 == %f\n", dbl1); double dbl2 = pow(2.0, -20....

[6 replies] Last: Yep :) But macro's should be well defined in your documentation in c... (by Zaita)

by tdigdug

Sorting issue? Completed

Aloha, I am using dev c++ and having a slight problem with a sort to a ever building payroll program. The unsorted data come out fine. The sorted data is where ...

[6 replies] Last: Thanks Faldrax. I will keep that in mind for next time. I switched my ... (by tdigdug)

by akmalnuernberg

char variable as a bit pattern

hi guys. one question. does it make any difference between char and unsigned char if I were to use the variable as a bit pattern? what i want is only th...

[7 replies] Last: @akmalnuenberg: C is still widely used because it has alot of know beh... (by Zaita)

by Fluffy Bunny

function template

Hi, I'm trying to write a function template in C++, and when I compile I get a strange (to me) error. #include <iostream> #include <vector> using name...

[3 replies] Last: Send it to Wellington, New Zealand. Corona please :D (by Zaita)

by ladesidude

floating points

Hello again, The following Code in C: int n = 10000; float f = 10000.0f; if (n == f) printf("They're equal.\n"); else printf("They're not equal.\n")...

[3 replies] Last: Ok. For example you have 1.9. if your (int) this it will become 1. It ... (by Zaita)

by Nandor

deleting content of files

Can someone tell me how can I delete the entire content of a .bin file?

[3 replies] Last: You don't need to delete it before ios::trunc. It automatically erase ... (by Mitsakos)

by Otto

Question about GetPixel(); -function

I'm making a 2D platform game and I basically know what I'm doing and how I'm doing, but I need some help with GetPixel(); -function. That should return a RGB v...

[6 replies] Last: I found this thread: http://forums.msdn.microsoft.com/en/vcgeneral/thr... (by Otto)

by infamouskiller

What is this doing?

Well I am doing some tuts and I am been reading some revised code of the examples. Now From my other programming experiances the main is calling for some arg...

[1 reply] : It is usually expressed as int main( int argc, char* argv ) where ... (by Duthomhas)

by babu198649

2D array indexing

hi this works int main() { int arr ; *(arr+1) = 10; } this gives error, since its a 2D array .but arr gives the base address when printed o...

[2 replies] Last: thank u (by babu198649)

by ladesidude

Arrays and pointers

int* a1 = malloc(4 * sizeof(int)); int* a2 = malloc(3 * sizeof(int)); int* a3 = malloc(5 * sizeof(int)); a1 = 1; a1 = 2; a1 = 3; a1 = 4; a2 = 9; a2 ...

[5 replies] Last: Whew. I was worried for a moment there that my brain wasn't working ri... (by Duthomhas)

by hamo94

what does += mean??

help i cann't make heads nor tales of this script it was an example in the arrays part of the tutorial i would really apreciate it if someone could explain i...

[4 replies] Last: thanks a million i posted that question a few days ago and since i lea... (by hamo94)

by boenrobot

getline() behaving weirdly *the first time*

Hi. I'm new to C and C++ (coming from PHP), and I'm currently just playing with it. Below is a sample console program I wrote that promts the user to enter t...

[11 replies] Last: Well, it looks ugly, but it works. There's one small problem left thou... (by boenrobot)

by Jacob

Opportunity to ask a bunch of questions

Hello everybody, At first i'm creating this thread to ask you guys something relating content from the basic c++ tutorial on this site, i already had a bit o...

[9 replies] Last: Well my example isn't a card sorter, it is just making a deck(array) o... (by mikeb570)

by QWERTYman

Difference between loops?

Say I want to do something in a loop if something is true. Is this: while(a){ //assume a is a boolean value dostuff(); } different than this: do{ do...

[3 replies] Last: Like someone else said, it is possible for the while loop to run 0 t... (by mikeb570)

by deviant

primary expressions

this the program that im doing.. when i compile it i get the error (expected primary expression before "char" in line 20 and storage size of "B" isn't known ...

[3 replies] Last: When you declare the "B" you use which means that it will be an arra... (by Mitsakos)

by powerpod

read modify write

Hello, I am just beginning to learn how to program. I am trying to write a program that reads in a file and then uses several functions ( that I am trying to ...

[1 reply] : The value '2' is the character code for the picture of a 2. If you a... (by Duthomhas)

by deviant

variable types

my program //cents #include <iostream> using std::cout; using std::cin; using std::endl; #include <conio.h> int main () { double ...

[3 replies] Last: thanks a lot.. now my program is all alright.. (by deviant)

by LostStudent

Stuck on Code for Program

I cleaned up my code so it is easier to read. I am having difficulties with the allocation of employee in my code. When I run the program, I can get the head...

[4 replies] Last: The file is employee name, pay status, hours worked per week and hourl... (by LostStudent)

by matanuragi

how to read hexadecimal data

If somebody can tell me how to read hexadecimal and octal data. With Regards, Matanuragi

[3 replies] Last: How is the input formatted. As bytes? 01 7F 13 AB A5 0C ... or as ... (by Duthomhas)

by monie89

Word Reverse in C++. What to use?

I was given a program to think about: To read in a 4 word sentence from the keyboard then display it backwards (in terms of the words, not the letters) I th...

[3 replies] Last: Yep. You got it exactly! ;-) You'll need another loop where ? ... (by Duthomhas)

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Beginners - July 2008 (Page 9)