Search Results

Search found 4685 results on 188 pages for 'cpp beginner'.

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

Page 130/188 | < Previous Page | 126 127 128 129 130 131 132 133 134 135 136 137  | Next Page >

  • facebook access_token problem

    - by user559711
    Hi, I just wrote a little application(4 page php), everything work fine, however, I have a question that, do I need to create a new instance of facebook (just like $facebook = new facebook.....) in every new php page, or just pass a access token or session? If only pass the access token, how can I use the function $faceook-api('something'); to acheive the data? Because I'm a beginner of php, I have no idea how access token work, please help, thanks a lot! Regards, YK

    Read the article

  • llvm preprocessor g++ passes

    - by anon
    Suppose I want to write my own preprocessor. So I want something like this: all *.cpp and *.hpp (even the included ones), before they go to g++, they go: file --> my preprocessor -> g++ Is there a easy way to do this in the LLVM framework? i.e. to add in a stage that says: "after you load up the source file, pipe it through this program before compling it" ? Thanks!

    Read the article

  • compiling a c++ program including mysql

    - by wyatt
    I'm new to gcc, and trying to compile a c++ program which includes mysql.h using the command: g++ -o test test.cpp -L/usr/include/mysql -lmysqlclient -I/usr/include/mysql It works without issue, but I was wondering if someone could explain the arguments to me. I don't like using commands I don't understand. Thanks

    Read the article

  • C++ dynamic type construction and detection

    - by KneLL
    There was an interesting problem in C++, but it concerns more likely architecture. There are many (10, 20, 40, etc) classes that describe some characteristics (mix-in classes), for exmaple: struct Base { virtual ~Base() {} }; struct A : virtual public Base { int size; }; struct B : virtual public Base { float x, y; }; struct C : virtual public Base { bool some_bool_state; }; struct D : virtual public Base { string str; } // .... Primary module declares and exports a function (for simplicity just function declarations without classes): // .h file void operate(Base *pBase); // .cpp file void operate(Base *pBase) { // .... } Any other module can has a code like this: #include "mixins.h" #include "primary.h" class obj1_t : public A, public C, public D {}; class obj2_t : public B, public D {}; // ... void Pass() { obj1_t obj1; obj2_t obj2; operate(&obj1); operate(&obj2); } The question is how to know what the real type of given object in operate() without dynamic_cast and any type information in classes (constants, etc)? Function operate() is used with big array of objects in small time periods and dynamic_cast is too slow for it. And I don't want to include constants (enum obj_type { ... }) because this is not OOP-way. // module operate.cpp void some_operate(Base *pBase) { processA(pBase); processB(pBase); } void processA(A *pA) { } void processB(B *pB) { } I cannot directly pass a pBase to these functions. And it's impossible to have all possible combinations of classes, because I can add new classes just by including new .h files. As one of solutions that comed to mind, in editor application I can use a composite container: struct CompositeObject { vector<Base *pBase> parts; }; But editor does not need a time optimization and can use dynamic_cast for parts to determine the exact type. In operate() I cannot use this solution. So, is it possible to not use a dynamic_cast and type information to solve this problem? Or maybe I should use another architecture?

    Read the article

  • C++ class is not recognizing string data type

    - by reallythecrash
    I'm working on a program from my C++ textbook, and this this the first time I've really run into trouble. I just can't seem to see what is wrong here. Visual Studio is telling me Error: identifier "string" is undefined. I separated the program into three files. A header file for the class specification, a .cpp file for the class implementation and the main program file. These are the instructions from my book: Write a class named Car that has the following member variables: year. An int that holds the car's model year. make. A string that holds the make of the car. speed. An int that holds the car's current speed. In addition, the class should have the following member functions. Constructor. The constructor should accept the car's year and make as arguments and assign these values to the object's year and make member variables. The constructor should initialize the speed member variable to 0. Accessors. Appropriate accessor functions should be created to allow values to be retrieved from an object's year, make and speed member variables. There are more instructions, but they are not necessary to get this part to work. Here is my source code: // File Car.h -- Car class specification file #ifndef CAR_H #define CAR_H class Car { private: int year; string make; int speed; public: Car(int, string); int getYear(); string getMake(); int getSpeed(); }; #endif // File Car.cpp -- Car class function implementation file #include "Car.h" // Default Constructor Car::Car(int inputYear, string inputMake) { year = inputYear; make = inputMake; speed = 0; } // Accessors int Car::getYear() { return year; } string Car::getMake() { return make; } int Car::getSpeed() { return speed; } // Main program #include <iostream> #include <string> #include "Car.h" using namespace std; int main() { } I haven't written anything in the main program yet, because I can't get the class to compile. I've only linked the header file to the main program. Thanks in advance to all who take the time to investigate this problem for me.

    Read the article

  • How to return the number of a month in C# function

    - by john
    I want to return the number of a month and i made a function but it always returns 0 this is my code: public int getNrMonth(String s) { int nr=0; if (s.Equals("January")) nr = 1 if (s.Equals("February")) nr = 2; return nr; } Could someone tell me wath is wrong please? I'm beginner!

    Read the article

  • how to create window that opened when close main window??

    - by Abeer
    Hi everyone .. Iam a absolute Beginner in QT.. i am trying to create window that has only text and one push button when you press it, you will get another window that has menu for program .. but Unfortunately, i didn't know how can i create new window and connect it with main window! so, i need to helping you

    Read the article

  • Creating and Compiling a C++ project on Windows

    - by sc_ray
    I need to work on C++ project on my windows machine. My project will consist of various classes(.h and .cpp) as well as the startup file to start the application. The preliminary design is simple but the application has the potential to gain complexity as time goes by. What I need here is ideas to set up the C++ project compiler/IDE/Makefile etc..etc. as well as some standard tools besides Visual C++ to compile/build/link projects such as these on a Windows OS. Thanks

    Read the article

  • No Main() in WPF?

    - by Luminose
    I am very beginner when it comes to programming but I was sure that one of the universal rules was that an program starts with Main(). I do not see one when I create a WPF project. Is Main() simply named something differently in WPF?

    Read the article

  • Auto-needed classes?

    - by fsdfa
    Suppose I have a class A and a class B. The .h of A, needs the .h of B, and the .h of B needs the .h of A. (need = #include). All .h have the guards: #ifndef _classX_ #define _classX_ ... ... #endif But if I compile the .cpp of A, then when it includes the .h of B, the B class cannot include the .h of A class because the A class has already use the guard. How can i solve this?

    Read the article

  • Accessing initialized variable on different class C++

    - by d0pe
    I'm having some difficulties with this problem. The main idea is, I initialized a variable of class type B in class A, class A.h has the variable Z declared as public, like B *Z; In class A.cpp, I initialized it as Z = new B(); Now, I want to access that variable from class C and I'm unable to do so. C.h includes A.h and B.h

    Read the article

  • Listing C Constants/Macros

    - by ZJR
    Is there a way to make the GNU C Preprocessor, cpp (or some other tool) list all available macros and their values at a given point in a C file? I'm looking for system-specific macros while porting a program that's already unix savvy and loading a sparse bunch of unix system files. Just wondering if there's an easier way than going hunting for definitions.

    Read the article

  • silverlight -how to install

    - by pravinkalemca
    please I can't able to install the silverlight on vs2008.please tell me how to install silverlight on vs2008. give me step by step description otherwise any most preferable link for that I am going in correct way.& how the controls are to be in vs2008. & also me give a beginner example for that i can start to teach the silvelight. please!!!!!!

    Read the article

  • understanding an API

    - by adusum
    I know that there are many API's like json,Facebook,twitter etc for developing related applications on iphone....but how to understand an API?This might be scilly question but I want to know how? what would you suggest for for a beginner?

    Read the article

  • An IE7 toolbar button, with 2 different *.rc files

    - by karikari
    I have a IE 7 button toolbar project on Visual C++. My question is, can my button have 2 *.rc files. Means, by default it will use the 1st *.rc file, and when certain condition achieve inside my *.cpp, the button will be using the 2nd *.rc file. Is this allowed in visual studio or IE7? edit: Both rc files has different information for icon image.

    Read the article

  • python: How to refer to specific item within a list of lists?

    - by user964689
    Python beginner here, I have a list of lists and want to refer to a specific part of that list. For example lol = [[1, 2, 4], [6, 7, 8], [9, 10, 14]] If I just want to print the first item in one of the lists, eg the 1, 6 or 9, how would I do that? I can only find ways to refer to each of the lists seperately eg lol[0] but not to then refer to an item within that list. Thank you in advance for your help! Cheers

    Read the article

  • curl problems in c++ class

    - by Danilo
    I read a few articles on c++ / curl here on stackoverflow and assembled the following. The main goal is to handle the whole request in an instance of a class -- and maybe later in a secondary thread. My problem is: "content_" seems to stay empty though its the same addr and HttpFetch.h: class HttpFetch { private: CURL *curl; static size_t handle(char * data, size_t size, size_t nmemb, void * p); size_t handle_impl(char * data, size_t size, size_t nmemb); public: std::string content_; static std::string url_; HttpFetch(std::string url); void start(); std::string data(); }; HttpFetch.cpp: HttpFetch::HttpFetch(std::string url) { curl_global_init(CURL_GLOBAL_ALL); //pretty obvious curl = curl_easy_init(); content_.append("Test"); std::cout << &content_ << "\n"; curl_easy_setopt(curl, CURLOPT_URL, &url); curl_easy_setopt(curl, CURLOPT_WRITEDATA, &content_); curl_easy_setopt(curl, CURLOPT_WRITEFUNCTION, &HttpFetch::handle); //curl_easy_setopt(curl, CURLOPT_VERBOSE, 1L); //tell curl to output its progress curl_easy_setopt(curl, CURLOPT_FOLLOWLOCATION, 1L); //std::cout << &content_ << "\n"; } void HttpFetch::start() { curl_easy_perform(curl); curl_easy_cleanup(curl); } size_t HttpFetch::handle(char * data, size_t size, size_t nmemb, void * p) { std::string *stuff = reinterpret_cast<std::string*>(p); stuff->append(data, size * nmemb); std::cout << stuff << "\n"; // has content from data in it! return size * nmemb; } main.cpp: #include "HttpFetch.h" int main(int argc, const char * argv[]) { HttpFetch call = *new HttpFetch("http://www.example.com"); call.start(); ::std::cout << call.content_ << "\n" } Thanks in advance

    Read the article

facebook twitter digg google delicious technorati stumbleupon myspace wordpress linkedin gmail igoogle windows live tumblr viadeo yahoo buzz yahoo mail yahoo bookmarks favorites email print

< Previous Page | 126 127 128 129 130 131 132 133 134 135 136 137  | Next Page >