Yahoo Web Search

Search results

1. Top results related to how to implement computer graphics in c++ with mysql

   • How to Implement a dictionary in C/C++ with autoCorrect, auto-complete, spellcheck

     Top Answer

     Answered Mar 04, 2011 · 2 votes

     You would typically use a tree of words, arranged according to edit distance from one another, such as a BK tree.

     IIRC, the idea is to have a balanced tree with each word linked through edges numbered according to edit distance. If you want to find the nearest match for a word, you compute it's edit distance to the root word, then follow the root word's link of the same number, and repeat the process until you reach a leaf node which is either the same word, or the closest match.

     EDIT: in hindsight, that article I linked does a much better job of explaining it than I did. I'd just recommend reading through it for a good explanation of the approach.

     Check all answers on Stack Overflow

     1/5

   • How to implement a timer with interruption in C++?

     Top Answer

     Answered Oct 22, 2010 · 3 votes

     One way to do it is to use the alarm(2)

     system call to send a SIGALRM to your process when the timer runs out:

     void sigalrm_handler(int sig){ // This gets called when the timer runs out. Try not to do too much here; // the recommended practice is to set a flag (of type sig_atomic_t), and have // code elsewhere check that flag (e.g. in the main loop of your program)}...signal(SIGALRM, &sigalrm_handler); // set a signal handleralarm(10); // set an alarm for 10 seconds from now

     Take careful note of the cautions in the man page of alarm:

     alarm() and setitimer() share the same timer; calls to one will interfere with use of the other.

     sleep() may be implemented using SIGALRM; mixing calls to alarm() and sleep() is a bad idea.

     Scheduling delays can, as ever, cause the execution of the process to be delayed by an arbitrary amount of time.

     Check all answers on Stack Overflow

     2/5

   • How to implement Priority Preemptive Scheduling (similar to interrupts) with threads in C++

     Top Answer

     Answered Feb 11, 2021 · 1 votes

     I found several solutions for this issue and I thought I'd share them here for everybody else. Throughout stackoverflow I found others who asked similar questions to this one and there are several possible solutions.

     Possible Solutions to Implement interrupt behavior with threads:

     • Force a context switch on your thread. I found some useful reference to how to do this on Windows as depicted in FreeRTOS Windows Simulator. For me personally, this seems to be the best option. Moreover, I might just use this simulator instead of building my own.
     • Write a windows driver as mentioned here: https://stackoverflow.com/a/13819216/4441211
     • Use SuspendThread and ResumeThread. Although when using this method you should be aware that they are async in nature as depicted here so this is not ideal.

     Check all answers on Stack Overflow

     3/5

   • How to implement a map with three keys in C++ STL?

     Top Answer

     Answered Oct 22, 2020 · 2 votes

     Yes you can do this with std::unordered_map, and it isn't as difficult as it may first seem. All a std::unordered_map cares about is:

     • The key type must be hashable using either a default hash algorithm or one provided to the container as a template-parameter type or a construction instance.
     • The key type must support equivalence checks (i.e. comparing two key instances for equivalence using either a custom "equals" type similar to the hasher template parameter argument, or the default std::equals, which uses operator == with two instances).

     This is easier to see than to explain. Below is a trivial example:

     #include <iostream>#include <algorithm>#include <string>#include <cstdlib>#include <tuple>#include <unordered_map>struct MyKey{ struct Hash { // jacked up derivation of bernstiens string hasher std::size_t operator()(MyKey const& key) const { std::size_t hash = 5381u; for (auto c : key.s1) hash = (hash << 5) + hash + c; for (auto c : key.s2) hash = (hash << 5) + hash + c; for (auto c : key.s3) hash = (hash << 5) + hash + c; return hash; } }; std::string s1, s2, s3; // equivalence determination. bool operator ==(MyKey const& key) const { return std::tie(s1, s2, s3) == std::tie(key.s1, key.s2, key.s3); }};int main(){ std::unordered_map<MyKey, int, MyKey::Hash> ht; ht.insert(std::make_pair<MyKey>({ "one", "two", "three" }, 42)); ht.insert(std::make_pair<MyKey>({ "four", "five", "six" }, 1999)); ht.insert(std::make_pair<MyKey>({ "seven", "eight", "nine" }, 1999)); auto it = ht.find(MyKey{ "one", "two", "three" }); if (it != ht.end()) std::cout << it->second << '\n'; it = ht.find(MyKey{ "four", "five", "six" }); if (it != ht.end()) std::cout << it->second << '\n'; it = ht.find(MyKey{ "seven", "eight", "nine" }); if (it != ht.end()) std::cout << it->second << '\n'; // shoudl NOT find anything it = ht.find(MyKey{ "one", "three", "two" }); if (it != ht.end()) std::cout << it->second << '\n';}

     To answer probably the most important part of your question, no this does NOT affect search time. Obviously it takes longer to generate a hash value from three string than from one, but once that value is acquired the search mechanics are identical to any other unordered_map. If a collision is found, the equivalence check kicks in, and again, that's unavoidable, but not going affect the big-O complexity of your overall performance profile.

     Check all answers on Stack Overflow

     4/5

   • How to implement queue with a single stack in C++

     Top Answer

     Answered Jun 27, 2021 · 2 votes

     The code isn't really using a single stack, its using the built-in stack as a second stack via the recursive call to deque. The code is equivalent to:

     #include <iostream>#include <stack>-class Queue{private: std::stack<int> s;public: void enque(int x) { s.push(x); } int deque() { if (s.empty()) { std::cout << "Q is empty\n"; return -1; } std::stack<int> temp; while (s.size() != 1) { temp.push(s.top()); s.pop(); } int result = s.top(); s.pop(); while (!temp.empty()) { s.push(temp.top()); temp.pop(); } return result; }};int main(){ Queue q; q.enque(1); q.enque(2); q.enque(3); std::cout << "Output: " << q.deque() << "\n"; std::cout << "Output: " << q.deque() << "\n"; std::cout << "Output: " << q.deque() << "\n"; std::cout << "Output: " << q.deque() << "\n"; return 0;}

     I can't think of a reason you'd implement a queue this way, as the queue grows in size deque gets more and more expensive, using the original code you'd ultimately end up with a stack overflow. If you need a queue use std::queue

     or std::deque

     (by default std::queue is just a wrapper round std::deque which hides the push_front/pop_back methods)

     Check all answers on Stack Overflow

     5/5

   Show moreShow less

2. stackoverflow.com › questions › 16424828How to connect mySQL database using C++ - Stack Overflow

   stackoverflow.com › questions › 16424828

   • Cached

   Getting 7.5 MySQL Connector/C++ Complete Example 1 to work. Downloads:-Get the mysql c++ connector, even though it is bigger choose the installer package, not the zip.-Get the boost libraries from boost.org, since boost is used in connection.h and mysql_connection.h from the mysql c++ connector. Now proceed:

   Code sample

   sql::ResultSet *res;

   driver = get_driver_instance();

   con = driver->connect("tcp://127.0.0.1:3306", "root", "root");

   con->setSchema("test");

   stmt = con->createStatement();...

   See more on stackoverflow

3. Videos

   • 

     3:51

     youtube.com

     How to make Graphics in Dev c++

     Jul 31, 2014

     161.5K Views

   • 

     13:54

     youtube.com

     How to run graphics Program in dev C++ | Graphics in C++

     Dec 13, 2018

     473.2K Views

   • 

     5:08

     youtube.com

     How to setup graphics.h in Dev C++ | CodeWar

     Jan 26, 2021

     207.7K Views

   View all

4. downloads.mysql.com › docs › connector-cpp-8MySQL Connector/C++ 8.4 Developer Guide

   downloads.mysql.com › docs › connector-cpp-8

   This manual describes how to install and configure MySQL Connector/C++ 8.4, which provides C++ and plain C interfaces for communicating with MySQL servers, and how to use Connector/C++ to develop database applications. Connector/C++ 8.4 is highly recommended for use with all active MySQL server versions, such as MySQL 8.0 and. 8.4.

5. www.geeksforgeeks.org › basic-graphic-programming-in-cBasic Graphic Programming in C++ - GeeksforGeeks

   www.geeksforgeeks.org › basic-graphic-programming-in-c

   • Cached

   Jan 6, 2017 · Step 1: Download the DevC++ version 5.11 from here. Step 2: Download the Graphics header files, and etc stuff needed from the given dropbox link. Step 3: Extract the contents of the rar file. Step 4: Go to the location where DevC++ is installed. For me its D drive.

   • 
   • 
   • 
   • 

6. People also ask

   How to use computer graphics in C++?

   • By the end of this blog you will be able to draw Pixels, Lines, Circles, Rectangles and Ellipses. To get started with Computer Graphics using C++, you have to import the graphics library. After this. you can start the methods/functions available in this graphics library.

   Computer Graphics | Program to Draw Graphics Objects using built-in C…

   dev.to/aryankoundal/computer-graphics-program-to-draw-graphics-objects-using-built-in-c-functions-2m1e

   See all results for this question

   What is MySQL Connector / C++?

   • MySQL Connector/C++ is a library for applications written in C or C++ that communicate with MySQL database servers. Version 8 of Connector/C++ implements three different APIs which can be used by applications: The new X DevAPI for applications written in C++. The legacy JDBC4-based API also implemented in version 1.1 of the connector.

   MySQL Connector/C++: MySQL Connector/C++ Documentation

   dev.mysql.com/doc/dev/connector-cpp/latest/

   See all results for this question

   What are the functions used in C graphics?

   • In C graphics, the graphics.h functions are used to draw different shapes like circles, rectangles, etc, display text (any message) in a different format (different fonts and colors). By using the functions in the header graphics.h, programs, animations, and different games can also be made.

   Draw a moving cycle using computer graphics programming in C/C++

   www.geeksforgeeks.org/draw-a-moving-cycle-using-computer-graphics-programming-in-c-cpp/

   See all results for this question

   What functions are used to create a graphical window?

   • The following functions are used for the corresponding tasks: initgraph (&gd, &gm, NULL): Initializes the graphics library and creates a graphical window. setbkcolor (CYAN): Sets the background color of the window to cyan. bar (…): Draws rectangles for sliders and bars. circle (…): Draws circles for the balls. getpixel (…):

   Slider and Ball Game using Computer Graphics in C++

   www.geeksforgeeks.org/slider-and-ball-game-using-computer-graphics-in-cpp/

   See all results for this question

7. www.geeksforgeeks.org › draw-a-moving-cycle-usingDraw a moving cycle using computer graphics programming in C/C++

   www.geeksforgeeks.org › draw-a-moving-cycle-using

   • Cached

   Aug 4, 2021 · closegraph (): It is used to close the graph. Approach: Following are the steps below to generate a moving cycle: Pass the three arguments to the initgraph () function to initialize the graphics driver and graphics mode. Create the upper body of the cycle by drawing lines. Create the wheels of the cycle by drawing circles and choose the ...

8. www.geeksforgeeks.org › slider-and-ball-game-usingSlider and Ball Game using Computer Graphics in C++

   www.geeksforgeeks.org › slider-and-ball-game-using

   • Cached

   Jan 4, 2024 · Computer graphics provide an exciting platform for developing fun and interactive games. In this article, we will walk you through the creation of a simple yet entertaining slider and ball game using the C++ programming language and the graphics.h library. Prerequisites: C++ Graphics and Development Environment Setup.

9. dev.to › aryankoundal › computer-graphics-program-toComputer Graphics | Program to Draw Graphics Objects using ...

   dev.to › aryankoundal › computer-graphics-program-to

   • Cached

   Feb 23, 2023 · By the end of this blog you will be able to draw Pixels, Lines, Circles, Rectangles and Ellipses. To get started with Computer Graphics using C++, you have to import the graphics library. #include <graphics.h>. After this. you can start the methods/functions available in this graphics library. Inside main() function before using the functions ...

10. dev.mysql.com › doc › devMySQL Connector/C++: MySQL Connector/C++ Documentation

    dev.mysql.com › doc › dev

    • Cached

    MySQL Connector/C++ is a library for applications written in C or C++ that communicate with MySQL database servers. Version 8 of Connector/C++ implements three different APIs which can be used by applications: The new X DevAPI for applications written in C++. The legacy JDBC4-based API also implemented in version 1.1 of the connector.