General C++ Programming - C++ Forum

File Managment, skiping certain lines from files

Good Evening All, Im supposed to write a program that reads lines from files and see if the first character is an odd number, if so it will out put the remain...

[3 replies] Last: Loved your answer Cubbi, sadly the seeking is the requirement . thats ... (by itcsr)

by genis

GSL bivariate

Hi I need to to use the function void gsl_ran_bivariate_gaussian (const gsl rng * r, double sigma_x, double sigma_y, double rho, double * x, double * y ...

[no replies]

by Omer Can

How to find square root of a number without math.h?

How to find the square root of a number without using math library? please help me guys

[1 reply] : http://en.wikipedia.org/wiki/Methods_of_computing_square_roots (by Peter87)

by Blesswind

Need Help! Multi looping :(

I made a voting program in which you need to enter one number from 1 ~ 5. the variables c,d,e,f,g are the number of votes for a certain item. What I need to d...

[2 replies] Last: The cleanest way to do this would be to use a struct to hold all infor... (by closed account 3qX21hU5)

by beginner123

server not receiving ip address from client

please check out this question: http://www.cplusplus.com/forum/beginner/95307/ i probably should have posted it in this forum

[4 replies] Last: yes sorry that line should not be there i have used getpeername alrea... (by beginner123)

by moosa94

my assimeant

hello everyone i have an assimeant and i face some proplem with it the assimeant consider 5 parts for part A .. Write a function named 7that output the el...

[4 replies] Last: this is my new codes but i still have errors !? And another PLEASE ... (by tcs)

by coolguy1

Function Pointers

Any idea where I am going wrong? We have to make a function integrate to work with the other functions given. I had it working before but I would only get all -...

[2 replies] Last: well, b-a will give -4 in case of the line. But that's not an integral... (by coder777)

by ing703

consecutive char and counting

how to put 2 letters together and make them to count as 1? provided that they must consecutive for example: p : count as 0 pxp : count as 0 pp : count ...

[1 reply] : Like this? int CountConsecutiveChars(char Lookup, char* Array) { ... (by Stewbond)

by rcast

Different aspects of C++

I am learning C++ now and have wondered what I need to learn or do to get my programs to operate outside of the console realm, and in GUI windows (a windows pro...

[7 replies] Last: Yes, it can completely replace VS! (by Stewbond)

by daljit

error in code

hello dear i was debugging the following code it was giving following error 234 D:\Documents and Settings\Administrator\My Documents\Untitled1.cpp expected co...

[1 reply] : need help pls correct errors (by daljit)

by rohanshah1

issue with character array

sol

[5 replies] Last: Maybe I should have been more specific... I wanted to know if there wa... (by Zhuge)

by closed account jyU4izwU

Video Game (Turbo C++)

Well im new to this C++ thing, im only 14 and my dad showed me alot... Well since im still at the video game playing age i have been inspired by minecraft. So...

[2 replies] Last: read my post here: http://www.cplusplus.com/forum/general/95245/ (by DeXecipher)

by David0805

periodic table

hello, I need help here. Here is the code #include <iostream> using namespace std; int main () { char element; cout << " Please enter a symbol. " <...

[3 replies] Last: no... char only holds one letter. so if he enters 'he' then it will on... (by closed account Dy7SLyTq)

by Neil010

Prime Numbers

Hello Everybody, I am trying to find the largest prime factor of a number. But when I am trying to determine if a number is a prime number in the function: i...

[5 replies] Last: @Duoas , thank you very much for taking the time to answer my questio... (by Neil010)

by tmlee2

.h File that is Continously Updating to extract certain variables

Hello everyone, I need to write a C++ program, that extracts certain variables, x y z, from a file that is continuously being updated x y z. These variables...

[4 replies] Last: Well I was wondering how I would incorporate the file that is always b... (by tmlee2)

by mrpeed

Proper way to exit after encountering an error?

if(usleep(timeToSleep) == -1) { perror("Failed to sleep."); exit(1); } Lets say timeToSleep() returns -1 which signifi...

[2 replies] Last: On error you have to exit with any value but 0. Mostly applications r... (by tcs)

by asda333

chroma key

Anybody know a way i can implement chroma keying in c++. Like removing a green screen like they do in movies. but i have an object in front of a green screen...

[4 replies] Last: Now i am trying to implement it but i can't seem to loop through the m... (by asda333)

by yados

Overloading function in a template class

Hi, I want to do a specialisation for int and float but i don't know is not ok. template<typename K, typename V> class H_Table { private : A_List<K,...

[no replies]

by greenleaf800073

Help with array transferring

I'm trying to put file data into members of a class. Remember to type in the file name you want to open. Cool feature right? I just had Dbase.txt so I chose tha...

[14 replies] Last: OMG I FIGURED IT OUT, it was stupid solution though, I had to put the ... (by greenleaf800073)

by klaus2013

copy string ..

Hello .. I want to copy the string from orig to dest. by the function ypcrts.. so what is the problem in my code.. thx a lot #include <iostream> #include...

[4 replies] Last: You are not doing what you think you are doing. So comment your code ... (by ne555)

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General C++ Programming - March 2013 (Page 35)