Beginners - C++ Forum - January 2010 (Page 2)

For some reason when I use the following code, all the Person's in my file get NULL'ed up to the one being written. Any ideas what's wrong with the following: ...

[13 replies] Last: This is why I tried to avoid posting all my code because it scares ppl... (by cartpauj)

by todouble22

if/else comparing fractions

i am a complete newbie so bare with me and attempt to get past my foolish looking code. this is my problem I have a problem with comparing and displaying frac...

[1 reply] : For determining whether one fraction is greater than the other simply:... (by kevinkjt2000)

by vlad61

aint working..

#include <iostream> using namespace std; int main() { float a,b,result; cout<<"\n Enter a number: "; cin>>a; if (a=5) {cout...

[4 replies] Last: then does spacing in some code matter? because thats the only differen... (by vlad61)

by Muner

Can't make a Triangle

#include <iostream> #include <string> using namespace std; void printLine(int); void printTriangle(int); int main() { int height; cout ...

[1 reply] : line 55: return; is incorrectly in the for loop. It needs to be ou... (by closed account jLNv0pDG)

by cppbeg

new cmd windows

scdccs

[3 replies] Last: That just creates a new console. Using that, you have not way of commu... (by helios)

by majidkamali1370

Header Tutorial!

Hello please introduce a tutorial(Free E-book) for learning all header files in borland c++. Thanks.

[1 reply] : http://www.cplusplus.com/reference/ (by helios)

by makan007

Cstring - Inserting element

How can I create a separate function to add a character (prompt user to enter a character) to my ElementA & display the result? I will have to make use of cstr...

[3 replies] Last: http://www.cplusplus.com/reference/clibrary/cstring/memcpy/ (by R0mai)

by dragonisk

need assistance with Age Counter program

okay so I'm just starting to learn Turbo C.. My professor assigned us to make a simple program that counts ages, (0-18 is infant, 19-29 is young, 30-50 is middl...

[1 reply] : Oh dear not getch() again.... getch() is not part of the standard c++ ... (by kevinkjt2000)

by kingty23

Need asistance asap

well im trying to make a program that calculates the overall rate of heat loss from a cylindrical tank, given the dimensions of the tank, the thermal conductivi...

[1 reply] : A and r0 are always 0.0. Is this what you intended? (by jsmith)

by studentffm

code interpretation

Hi, I have troubles with understanding of the following code double **zweidmatrix(int zeilen, int spalten); void free_zweidmatrix(double **matrix, int lin...

[5 replies] Last: func3 is a function, it doesn't point anywhere. See this: typedef... (by Bazzy)

by svexo

Reffer to a other function

Hey all how can i reffer from main to submain #include <iostream> using namespace std; int main () { // Does some stuff // needs to call submai...

[3 replies] Last: int main () { submain(); // call submain } (by Bazzy)

by aash

diamond shape

how can we make a diamond shape by using nested loops only......??

[9 replies] Last: Start by making a triangle. (by moorecm)

by deorcar

making a Simple Math Library

i have to make a Simple Math Library with a Vector class, Matrix class and a node class i have all the info i need to do it, but i have 3 errors and i need some...

[5 replies] Last: ok looks like this now #include <iostream> #include <math.h> ... (by deorcar)

by beginner at programming

algorithm

I am using jean meeus's astronomical algorithm's formula : int = whole number. if (month > 2) leave month and year unchanged if (month == 1 or month == ...

[8 replies] Last: But C99 is not part of C++. Here are some basic Rounding Algorit... (by Duthomhas)

by sukhi

hi....

can someone please correct the errors of the below given program... i've marked the errors that my compiler showed... #include<fstream.h> #include<iost...

[11 replies] Last: It looks like some old code you got somewhere around the internet or s... (by unoriginal)

by shadowvillian

using else if

do you have to use if(x == 3) { } else if (x == 4) { } because i always use if(x == 3) { } if (x == 4) { } i never tho...

[7 replies] Last: Ah of course. I didn't get to re-read this post after I replied last t... (by gcampton)

by Aaron09

Not understanding functions!

I'm pretty new to the c++ language and programming all together. I was wondering since functions are a large part of programming if anyone can give me some bas...

[1 reply] : Start by reading over this: http://www.cplusplus.com/doc/tutorial/f... (by Return 0)

by roniy

a simple HW question :

here is the question : Write a program that generates an Employee Payroll Report. The input for the program consists of a collection of data containing the la...

[2 replies] Last: You can use arrays if you ask the user the number of employees and the... (by kevinkjt2000)

by gcampton

Tutorial question regarding pointers

In the tutorial it has this example talking about pointers: // more pointers #include <iostream> using namespace std; int main () { int firstvalue ...

[13 replies] Last: @helios: Can you teach me how to divide by zero? (by kevinkjt2000)

by Zeldami

Cut off numbers/words

Hi people, I'd like to know if (and how) you can cut off numbers and words. Example: I have: double = 1.23456789 How do I cut off till I have 2 (or 3) decim...

[2 replies] Last: Thanks =) Now I remember I've seen that before =D (by Zeldami)

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Beginners - January 2010 (Page 2)