General C++ Programming - C++ Forum - February 2012 (Page 11)

i has a Qt application which i am converting to normal C++ . I may seem odd because most of the people try the reverse. I had some parallelization problem with ...

[2 replies] Last: The issue is solved . I forgot the fact that gcc do not like to separ... (by sajis997)

by SuperStinger

introduction/Approach to parsing/Game development

Hey, Just joined the forum! hope to find much knowledge! Anyway, Im writing a c++ game using the SDL graphics library. Ive got gravity, a character, a map...

[3 replies] Last: Ye ok, i thought i had to, im using C's FILE to open and read a file ... (by SuperStinger)

by closed account o1vk4iN6

Is Primitive Type Trait?

Is there a type trait in the standard library to check if a value is a primitive? Something along the lines of: template<class T> struct is_primitiv...

[5 replies] Last: The only time you "need" to use typename is to identify nested depende... (by clanmjc)

by Smoke

Converting a hexademical to decimal string

Please be aware I cannot use any intermediate storage such as int or long as will be working with big integer numbers. My current progress is below ...

[10 replies] Last: @Smoke I know it's been more than 10 days since this was commented on... (by whitenite1)

by savelam

using C++ to develop Android applications

I want someone to give me a gist on who C++ is used in programming Android applications.

[2 replies] Last: I want someone to realize that it's faster to search for the answer th... (by cnoeval)

by aliansi

opendir problem

hi every body i tried to open a directory in my local computer but the function opendir() always return error "can not open the directory " i send the foll...

[6 replies] Last: perror() say : "no such file or directory" and i'm sure 100% that the ... (by aliansi)

by kyky365

I cannot run properly my C++ programme

When I enter all the number in my C++ programme. Right before the output print out , the below statement will be show. A dbgheap code will be shown also and the...

[8 replies] Last: Thank you all of you! you guys have helped me a lot ! Now I can run t... (by kyky365)

by Yezman

Pointers - In a function call use *s or s?

struct dir_t { char *name; // Name of directory int owner; // ID of owner int num_files; // number of files in directory file_t files ; // file descrip...

[2 replies] Last: So you got to use s . Good. (by jumper007)

by gibran

nested loops help please

Before you think i am being lazy, let me say that i really, really, tried finding my mistake(s). I am desperate right now. My primary goal is to scan an arra...

[2 replies] Last: comparing to all the occupied slots in an empty parrallel_array: An... (by vin)

by fanasy

why my c++ program call so many time of _fini

my platform is linux 2.6.9-55.ELsmp I use gprof to analyse my c++ program for speed up. but I find 69.65% time to call _fini and the calls is 12308332. I goog...

[2 replies] Last: thanks roberts for remind. I drop the object to string. now can't see ... (by fanasy)

by sharath137

fopen getting crashed....(cannot able to access file through fopen sometimes)

hi , I was trying to open a file using fopen() method. It's not opening all the time. some time it opens but the other time its getting crashed.... FI...

[3 replies] Last: the file gets open correctly, but you use MAX_LEN and MAX_LENGHT. do y... (by Jikax)

by vivmen

problem with vector

Hi all i am trying following code class myc { static int i; public: myc() { cout<<++i<<" ctor \n"; } ~myc() { cout<<--i<<" dtor \n";...

[7 replies] Last: contact microsoft. well lets see their view. here is link http://so... (by vivmen)

by jpss90

Fatal Error LNK1120

I apologize if this is the wrong thread to put this as this is my first post but I need help with my programming class. I keep getting this error message: 1>...

[2 replies] Last: Thank you, that totally makes sense. I have tried that and it succeede... (by jpss90)

by bd123

Snake Game SDL

Hello, I am just starting out trying to make games in C++. I have some experience with the language but I have never made games or used SDL too much. As a ...

[1 reply] : Rather than having speed for the snake, depending on what direction th... (by closed account o1vk4iN6)

by sierramae

breadth-first search using an adjacency matrix

Hi everyone, I'm trying to implement a breadth-first search using an adjacency matrix for my undirected graph. Basically given v1 and v2, I'm trying to find a ...

[1 reply] : |to_expand visited tree| to_expand := Queue new. to_expand push: roo... (by ne555)

by rucafe

sting member variable and sscanf function

I have created two classes: class dm_Step { public: char m_plus; char m_particle; float m_energy_sec; float m_xpos_sec; float m_ypos_sec; floa...

[2 replies] Last: Why scanf and not >> ? (by kbw)

by dumkat

exiting a loop

I am writing a socket program bool done = false; while(!done){ . . sck_client = accept(sck_unix, (struct sockaddr *)&remote, &len); . . } Is there ...

[3 replies] Last: You're using blocking sockets, so the calls to socket functions will b... (by kbw)

by newdomingo

Run Java using C++ and the opposite

Hi all, i would like to ask: (1) How can i run a Java program using C++ ? (2) How can i do the opposite, to run a C++ program using Java ? ...

[4 replies] Last: (1) How can i run a Java program using C++ ? (2) How can i do the o... (by closed account 3hM2Nwbp)

by snipslog

Getting the working directory and converting to a string

As the title says, I am trying to get the working directory and convert it from a LPWSTR to a string. It has to be ASCII and not Unicode because functions later...

[11 replies] Last: I believe it's _get_pgmptr if that is what you're referring to. Thanks... (by snipslog)

by new2cpp

Overloading the ++ operator to incriement an iterator

Hello, I am currently creating a sqaure list and one of the requrements is to overload the the pre and post ++ operator. Ive tried overloaded the ++operat...

[6 replies] Last: @vlad from moscow I tried this and when i try to incirment an itera... (by new2cpp)

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General C++ Programming - February 2012 (Page 11)