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General C++ Programming - July 2010 (Page 16)

Well, it seems not to be working. If the user inputs a username with a ' in it, it gives me a sql error (if mysql_real_escape_string() was working it wouldn't)....

[no replies]

by ibtkm

problem in char* &

hi every body in this code void toPointer(char a ,char* &b ) { for(int i = 0;i < sizeof(a) / 4;i++) b = &a ; } i have error(this error is for char...

[10 replies] Last: i need to add: "when passing as a function argument." (by everid)

by abbi

linklist

if we have a link list , we need to sort it then we will use which sorting technique ( insertion, bubble, merge etc)?

[3 replies] Last: this smells like a test question. (by Seraphimsan)

by rollie

Templated Storage

Another user (NGen) recently asked a question here about how to implement a templated class such that it could have generic get/set methods that could get/set a...

[2 replies] Last: There's no harm reinventing the wheel if you don't look at the blue pr... (by Seraphimsan)

by phummon2

"Undefined Symbol" when writing socket code???

Hi everyone, I have a "This should be simple!" kind of problem. I need to do a little socket programming on a SunOS machine . I went back to an o...

[3 replies] Last: Figured it out - a colleague explained to me how to properly read the ... (by phummon2)

by Fellixombc

Removing whitespace

For some odd reason, my function isn't removing any whitespace. Can anyone see why? string Manage::RemoveWhite(string &str) { string final; for(unsi...

[4 replies] Last: Ahh, thank you, that did the trick! (by Fellixombc)

by LBHoward

Objects holding Objects

Hello there, I'm steadilly progressing through some C++ Begineers textbooks, quite near to the end of them now, and I'm having a bit of difficulty with an objec...

[4 replies] Last: however this design is a bit dangerous because Dwarf cannot be guaran... (by LBHoward)

by JRevor

About the Struct syntax.

I'm doing an application that uses Linux signals. Searching through the internet, I came across the following struct declaration struct sigaction { ...

[5 replies] Last: Thanks a lot!. Sorry if it took me some time to mark this as solved. (by JRevor)

by abbi

stack

ARE we able to make stack of variables having different data types??? if yes then how?

[11 replies] Last: The union approach doesn't quite work because on retrieval, the progra... (by jsmith)

by arupsarkar

Formatting output to a flat file

Hi, I am trying to format data in a flat file in a particular format. The following are the steps. STEP 1: Data elements in the code. string Fix...

[4 replies] Last: Please mark this post as resolved. (by arupsarkar)

by arupsarkar

Cannot open include file: 'readline/readline.h'

Hi I have the following in my code. Except the stdlib.h none of them are getting resolved. Can someone please help me in finding references to the header fil...

[2 replies] Last: Thanks very much in replying, that is correct, I was able to compile i... (by arupsarkar)

by mostafa44

editing a binary file

greetings to all, is there any way to edit a pre existent binary file its really so urgent to me i have made a thread at the begininers section that i want u...

[no replies]

by johnbach

auto_ptr inside map

#include <map> #include <memory> #include <string> using namespace std; template <typename T> void fns(void) { typedef auto_ptr<T> Tptr; ...

[1 reply] : As iterator is a typename the compiler needs a hint: typename map<... (by Galik)

by abdallahijazi

opaque

Dear all, Would anyone kindly explain to me what does "opaque" mean? here is the context: "This memory is not directly accessible to the user, and objects...

[4 replies] Last: thx Smith, (by abdallahijazi)

by Poke386

OpenGL Textures

Argh..I've been trying to get this to work for over two hours now, and I just can't see what the problem is.. This code is basically NeHe's sixth tutorial us...

[no replies]

by mailkamlesh

ARRAY

Hi guys I have a small issue in C++. I have an array arr = {1,2,3,4,5,6,7,8,9,10} I need to have a loop where I start the loop from start of the array( i....

[3 replies] Last: There's actually a pretty graceful way to accomplish this with a direc... (by stravant)

by robmondude

Question about for_each function

Hello everybody. I am new to the forums, and pretty new to C++ so I have been trying to teach myself (I am fairly familiar with Python and somewhat familiar wit...

[3 replies] Last: There are other solutions with boost::lambda that make this a one-line... (by jsmith)

by abbi

pointers

what is the use of **ptr? why we use it?

[8 replies] Last: [quote=abbi]then what is the difference between *ptr and **ptr as *ptr... (by Galik)

by agajantorayev

Digital Sorting or C++ VS Pascal

Hello, everybody! Can anyone write how to realize this code in C++; int d[-100..100]={0...0}; read(n); for i=1..n{ read(x); d =d +1; } for x...

[4 replies] Last: Isn't -100..100 201 elements? (by moorecm)

by mindvera

2 simple questions about hash tables and binari trees.

Hallo.If someone can say me are theese states are correct/incorect i will be very thankful.10x A simple open addressing strategy for collision handling in h...

[6 replies] Last: 10x for the illustration.Now i can do this kind of question with ease.... (by mindvera)

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