Is there a C++ version of the FatFS library? I am trying to incorporate fatfs into a cpp project and I havent been able to compile the project even though I added the
#ifdef __cplusplus extern "C" { #endif
in the header file. I may have missed something. How to be able to do this?
I'm working on a Hash Table implementation and after fixing all the errors and finally getting it to compile and link correctly, I am met with a black screen upon execute.
main.cpp #include <stdio.h> #include <string.h>
[Code]....
I tried inserting a debug statement in the main() function to see, and it wouldn't even print out the message "debug me" on the screen.
I am using Code::Blocks on Windows with the mingw32-g++.exe compiler. Here is my build log:
I have started using code::blocks for practicing ,(was using bloodshed dev C++ til now). The thing is that m not able to compile multiple programs stored under a single project , as i have created project by the name of a topic and have decided to solve all problems related to that topic under that project.
When there was only one .cpp file in the project it compiled successfully ,but as soon as i created a second file and compiled it it says "main can be declared only once"
(Then i have the glew.h that is about 17000 lines of code)
I get this errors:
c:archivos de programacodeblocksmingwin..libgccmingw324.7.1........includeGLglew.h|84|error: #error gl.h included before glew.h| c:archivos de programacodeblocksmingwin..libgccmingw324.7.1........includeGLglew.h|1793|error: 'GLchar' does not name a type| c:archivos de programacodeblocksmingwin..libgccmingw324.7.1........includeGLglew.h|1804|error: 'GLchar' has not been declared|
As you see, I have taken input from the user just after calculating the whole palindromes. So cant we calculate this at compile time? because runtime of this program is extremely slow.
Another qs. I first tried to use array but It didnt allow 2*10^9 sized array. so what should I do whenever I need that size of array?
My question is this: Is it possible to determine where functions are stored at compile time, so that at run time you can pass the memory address as a pointer to the interrupt handler so that it can directly call the function at memory location 'X'?
The newest project I'm working on would require to either somehow capture these addresses or to find a work-around so that instead of passing the pointer to the interrupt handler, the software would then need to be able to be non-interruptable.
Would there be anyway for the compiler, or the language, to provide a unique ID during compilation?
I've been using UUID generators, but I've always found the approach of copy pasting from a program to code to be kind of... limiting. If I want a random number, can't the compiler guarantee this for me?
It already does the same thing for anonymous namespaces, so...
Consider: Code: template<unsigned int N> class Test { private:
[Code]....
I just cannot understand why (clearly, we are calling <0, 0>, not <0, 8>). If I replace "N" with 8, it works as expected (at least for the beginning of the loop). I only tested on MSVC.
I am working on a project, where I have to be able to exclude some code fast and dynamicly at compiletime.
I got a scheduler running and actually I just want to remove some of the tasks from it - but at compile time so that the code wont take up space in my microcontroller.
I know that I can use macros like #ifdef #endif etc. But I think that method makes the code unreadable and complicated.
How to archive such functionality a more elegant way?
So I made a library for a whole bunch of functions and when i compile it, it says"Unresolved external symbol_(Name of function here) referenced in function main.
How do I set the size of a member array via the class constructor if I know the size at compile time. I can do this with templates, see below, but this leads to code bloats, I think.
So one class declaration but objects with different array sizes.
Can't use constexpr. Can't use STL. Can't use new.
#include <iostream> using namespace std; template<int T> class MyArray { private: int array[T]; public: int getSize()
I want to generalize my productFunction below to a template family of functions where the template merely changes the * to + or whatever else operator I wish to use.
How can I turn a template parameter into various operators? (apart from using switch statements that will reduce the performance and make the code really ugly) What kind of metatemplating method converts a compile-time constant to an operator?
I am doing a school project. The project basically is that it records the in and out time of an employee(of an particular company).The employee while checking in or out should enter a unique key generated specially for him so that no one else can check in and out for him.Then referring to the employees position( A worker or a manager or something like that) his total working time each day , for a week and a month is calculated. The company starts at 8 am and ends at 5 pm for 1st shift and for second shift from 3.30 pm to 2.30 am. Plus Saturday and Sunday off. Then after a month the program refers to the working time date stored in a file and calculates his pay(For workers its per hour salary and for managers it aint).
If an employee is consistently late the details are forwarded to the HR account( so that necessary steps are taken).This will support the company log the details of their employees duty time plus give enough detail to take action if someones always late. I'm doing this as a school project and it needn't be of enterprise class and all.. But i want the coding to perform as it should. Also i'm forced to use the old Turbo C++. Now i'm struck in the place where the time of the employees in and out time is logged. This coding does the work
Code: void main( ) { clrscr(); char dateStr [9],timeStr [9]; _strdate( dateStr); cout<<" The current date is "<<dateStr<<'
[Code] ....
I think the second one is better as it not only gives me date but also gives me the day so i can check easily for the weekends. So, how these time functions work.
Code: typedef struct token { int tokenType; // what token is that int tokenCode; // the code of a function if applicable char *tokenString; // Source token double tokenValue; // if token is a number
[Code] .....
I got several warnings and erros, is it possible to declare a table like that ? What's the correct way to declare it ?
I have a toolbar created in VC++ 6.0 using ATL Project libraries! I need to use IHTMLDocument2 library in my toolbar project can i use it ? if yes then how ?
If I drop this regular dll project and create a new MFC extension dll project, it will involve too much work. I wonder if there is relatively easier way to convert an existing regular dll project to a MFC extension dll project? BTW, how can I tell a MFC extension dll project from a regular dll project?
Used some online code example to put a little project to display raw image. The display does not seem to work.For some purposes, I like this to work with a dialog based MFC project.XDVView is derived from CScrollView.
See OnInitDialog() and OnDraw(CDC* pDC).8bit 768x756