General C++ Programming - C++ Forum - January 2011 (Page 6)

Hello, please help me... I have a problem with strtok char a = "1.2"; I get number "1" use printf("%s", strtok(a, ".")); but how to get number "2" w...

[2 replies] Last: Simply put, it splits a string into tokens when the delimiter is reach... (by closed account zb0S216C)

by Icenel

How to use strtok

Hello, please help me... I have a problem with strtok char a = "1.2"; I get number "1" use printf("%s", strtok(a, ".")); but how to get number "2" w...

[1 reply] : Try this: #include <cstring> #include <stdio.h> char a[ 5 ] = ... (by closed account zb0S216C)

by Liam1994

Classing problem

How do i get this to randomly throw out 1 of the text in the eightBall class #include <iostream> #include <stdlib.h> #include <time.h> #include <math.h> ...

[3 replies] Last: I don't understand what you want. Why not just add cout << iSecret? ... (by Browni3141)

by erry121

Reade first character of each row file txt

Hi, i'm new on this forum and on c++. My target is to read a input file of this type: 9 10.1.1.9 10.1.1.1 3,500000 00:00:00:00:09 00:00:00:00:08 7 and...

[4 replies] Last: You could do this: #include <fstream> #include <stdio.h> bool ... (by closed account zb0S216C)

by vouslavous

some problems this text cleaning program

hello everyone, what this program is supposed to do is to get text from a file and remove all weird characters (1234567890!@$#%^&*) and then output the cleaned ...

[2 replies] Last: to read 1 char at a time does the only thing that needs to be done is ... (by vouslavous)

by iit2009154

Deleting

I want to delete a part of file not the complete file . How i can do it using file handling.

[3 replies] Last: Actually i am trying to sort a file with integers written into it . I ... (by iit2009154)

by like2codecpp

pass class to function fail

ok so i have a function that i want to use an object as input for but when i do nothing happens the function doesn't execute but no errors appear. so anyway her...

[11 replies] Last: ne555... Thank you for posting that article. It was a very interest... (by sadavied)

by phantom

recursive program to raise number to power

I have to write two files, one is a header and the other a file that calls that header to run the equation. The problem I am having is that I do not see a resp...

[1 reply] : you've got some syntax issues here... check out the beginners guides t... (by ceruleus)

by fernando

Empty strings

Hi all C++ programming fellows Making some experiments with string objects I've seen what I think is a confussing behaviour. If you want to create an empty st...

[5 replies] Last: Grey Wolf you're so wise! (by ceruleus)

by wgnwpu

How to stringize a string with comma in it?

#define CSTR1(a) #a #define CSTR(a) CSTR1(a) #define CLASSNAME_TEMPLATED(className, param1, param2) \ className<param1, param2> int main() { cout <<...

[1 reply] : Use an extra set of parens: CSTR((CLASSNAME_TEMPLATED(map, int, ... (by jsmith)

by stereoMatching

How to install systemC under tdm-gcc

As the title, I would like to install systemC 2.2 on mingw But I don't know how? OS : windows xp sp3 compiler : htp://tdm-gcc.tdragon.net/ I spent sever...

[no replies]

by Sam034

What should I learn next?

Hey, I was wondering if you guys could help me. I just finished this book called "C++ All-In-One For Dummies( the 7 books in 1 edition)." It was about 800 pages...

[11 replies] Last: It seems like SFML is the first library I should learn. There are ... (by Sam034)

by vagelis

reallocate with new

hi all i have a class with a table inside the table takes memory with new in some cases the table could take a bigger size and i want to reallocate the mem...

[3 replies] Last: I don't know what copy is doing (I hope it creates elements as well as... (by kbw)

by edhelatar

problems with online checker

do anybody know why my program is not working corectly i still have wrong answer. i am sure that the algorithm is ok because on all test he was giving good answ...

[3 replies] Last: It seems to me that you miscalculated t = sqrt( g*h/2 ) while it shoul... (by hamsterman)

by sbyres

Reading from a file

Hey i'm in desperate need of some help. I'm doing my Advanced Higher Computing project for school, and my programming has come to a complete halt. What im tr...

[3 replies] Last: Thanks for the replies. My code is now compiling, but it hangs when re... (by sbyres)

by okokok126

some problem about boost::thread

hello everyone. I'm a new user of boost thread. I use boost thread to write a multithread program. In my program, I wrote a GameManager class which manager...

[no replies]

by gwpatrick

why is long double so slow?

The following code is at least a factor for 10 slower with F typedefed to long double as opposed to double. Simpler loops only seem to take a 30% hit. Anyone ha...

[4 replies] Last: sizeof( long double )=16 sizeof( double )=8 That's not what I expe... (by gwpatrick)

by LordRaiden

Is there a way of knowing whether a text file is opened by another application?

The question I suppose is clear. Another application is not mine. It is writing some data into a .txt and I'm trying to read it asynchronous

[1 reply] : I guess that you could check the timestamp of the file. In linux you... (by ne555)

by DOSIX

making a timer

i'm working on a timer that counts down from a set number of time until zero. i just don't understand clock() or the CLOCKS_PER_SECOND macro. how would i make t...

[2 replies] Last: alright thanks. (by DOSIX)

by Phantom139

hex2bin issue

Hello, I have a faulty hex2bin function here, and I'm wondering if anyone has suggestions to fix it. std::string hex2Bin(std::string &input) { std::ostr...

[4 replies] Last: I have another update, maybe it can be solvable this time. It appears ... (by Phantom139)

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General C++ Programming - January 2011 (Page 6)