General C++ Programming - C++ Forum - December 2012 (Page 31)

Any possible problems with this code? int main() { std::fstream in("file.txt", std::ios::in); in.seekg(0, std::ios::end); std::size_t len = in.tell...

[1 reply] : There is a portability problem with using seekg/tellg on files open in... (by Cubbi)

by Xyexs

Timer and other problems... (1,2)

Hey, i'd like to know how to make timers (if possible). This is my current code(not done, im still learning) void wait(int seconds); void wait(int seconds...

[28 replies] Last: the problem is, im 13 years old and my native language is not english ... (by Xyexs)

by bainofmyexistance

how to use strings with loop

thank you

[2 replies] Last: Thanks can you explain to me why do I use lines in the function brea... (by bainofmyexistance)

by Dominic Genest

std::to_string

Hi, I cannot find reference to std::to_string (C++11). Is it available on the site? If so, where? Thank you very much for the great C++ reference site, ...

[2 replies] Last: I don't think this site has anything about to_string yet. You can use ... (by Peter87)

by cantdocplusplus

using array to get data from txt file

Hi,I wanted to extract values from a txt file into an array in a program. my txt file is: 14 8 0.4 16 2.0 1.7 16 10 0.5 17 2.2 1.8 18 11 0.5 18 2.2 2.0 ...

[6 replies] Last: sorry if i sound stupid, literally started using C++ a few weeks ago. ... (by cantdocplusplus)

by heba1333

how to read a table from a file

hi plz i need a help i wanna to read this file by using arrays any one can help? 77112233 Noor Hajiri Extreme 2150.4 77223344 Ali Qudsi Extreme 3100.2 7733...

[8 replies] Last: never mind really thnx for help ^_^ (by heba1333)

by Jonathan Anderson

Swapping Columns in a Vector Array

I have a simple program that takes a .csv file and produces a vector. I am then hoping to manipulate this vector in many different ways. The matrix is linke...

[8 replies] Last: If every row has the same number of fields, perhaps it would be a goo... (by Cubbi)

by MirMohammad

I don' know if it's called multitasking

I have a taxi-meter program in console. Now in my main menu I want to get a choice from user (1,2,3 for example). And at the time that the program is waiting ...

[10 replies] Last: tnx alot ... I'll try the first ...... :D tnx (by MirMohammad)

by fpiro07

Ios guide

Can anyone advise me the name of a good book or guide to better understand the "ios" class and derivates?

[2 replies] Last: Yeah I already saw that reference but I was thinking of something more... (by fpiro07)

by Wurter

DETERMINE THE EXPECTED RESULT

Good day, I am a novice at C++ programming and would appreciate your comments. Regards, Werner. //DETERMINE THE EXPECTED RESULT OF 'dest' FOR THE FOLLOWING ...

[no replies]

by warkari

Pointer

In the below function compare.. int compare (const void * a, const void * b) { return ( *(int*)a - *(int*)b ); } What is the exact meaning of *(i...

[2 replies] Last: thanks.. (by warkari)

by Smac89

How to properly use pointers

I wanted to try something which was to have an array filled with strings, then use a pointer to print the strings one at a time to stdout. However, I keep encou...

[8 replies] Last: Bah I thought I was the only one posting. I didn't see that like 3 ot... (by Disch)

by Smac89

Help with this segmentation fault

I compile with no errors, then I run this and I get a segmentation fault. When I use gdb to try debugging, I get this: Program received signal EXC_BAD_ACCESS, ...

[2 replies] Last: Thanks man, I finally understand pointers a bit more now: bool isPal(... (by Smac89)

by Angeljruiz

Server and client

Hey rrybody, I was wondering if I could program both client and server in different languages . Let's say I program a server in c++ and a client in java . Wou...

[1 reply] : That happens all the time. As long as they observe the same protocol,... (by kbw)

by jkfde

Memory Mapping

How do i make a memory map of this? Address of int1, int2, int3: 0032F818 0032F80C 0032F800 Address of dub2, dub3: 0032F7E0 0032F7D0 ...

[no replies]

by mistabob

Removing function that isn't properly reattaching nodes

please help! This should just be a simple algorithm error! this is a continuation of this post: http://cplusplus.com/forum/general/87357/ This is the la...

[5 replies] Last: There are two sorts of errors, compilation errors, and logical errors.... (by TheIdeasMan)

by mistabob

Having some trouble with a Binary Search Tree

Hello, I'm writing a binary search tree for a school project, but whenever I try to call insert(), I get an access violation. I don't know why. I have test cou...

[15 replies] Last: So it looks like my final problem is in remove(). I'm not reattaching ... (by mistabob)

by zed55

How to rewrite this part of code using FOR LOOP

Hello, I can't figure out how to rewrite this part of code by for loop? //Project 2 #include<iostream> #include<math.h> #include<fstream.h>...

[2 replies] Last: @zed55 The fundamental problem is that you cannot compare floating p... (by TheIdeasMan)

by icegood

stl error: wrong allocator coversions?

Have in code: std::vector<foo, TBufferedAllocator<foo> > v_foo; // v_foo.get_allocator().BufReserve(100); In particular my allocator have stat...

[7 replies] Last: Don't get. How then can i call that constructor if i know that insta... (by icegood)

by jkfde

Whats the Error

for an assignment we have to find errors in the code here is code int *pint; pint = new int; if (pint==NULL) *pint=100;//is this the error *pin...

[3 replies] Last: The code is saying that if pint is null, dereference it and set what i... (by freddy92)

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General C++ Programming - December 2012 (Page 31)