void func(void) { std::cout<<"\n This is a C++ code\n"; } We will see how the function func() can be called from a C code. The first step for this is to change the declaration/definition of this function by int
The assert keyword is used to perform an expression as a function parameter, and it evaluates it during memory allocation. So we can use the malloc() method to write and evaluate expressions on the variable. If the expression evaluation fails or returns the Boolean value as false, the same ...
Syntax of fwrite in C: size_tfwrite(constvoid*restrict ptr, size_t size, size_t nmemb, FILE*restrict stream); Where, ptr:Pointer to the array of elements to be written. size:Size in bytes of each element to be written. nmemb:Number of elements to be written. ...
This article will explain several methods of how to useforkfunction in C. ADVERTISEMENT Theforkfunction is used to create a new process representing the caller process’s duplication. Note that the calling process is conventionally called a parent process and a newly created one - a child process...
While using the Windows operating system, we have to include “Windows.h” header to use the sleep () function. So in order to write a cross-platform program, we can have the code as shown below so that either of the headers will be used. ...
In this article, we are going to discuss how to use the mmap() function in Linux. So, let’s get started. Header File: #include <sys/mman.h> Syntax: void * mmap (void *address, size_t length, int protect, int flags, int filedes, off_t offset) Arguments: The function takes ...
This article will demonstrate multiple methods about how to use thegetcharfunction in C. Thegetcharfunction is part of standard input/output utilities included in the C library. There are multiple functions for character input/output operations likefgetc,getc,fputcorputchar.fgetcandgetcbasically have...
I have already written an article that explains how is the function pointer work in C programming. If you are the then it is my advice that before reading this article you should read my articleHow to use a function pointer in C?
How can I use a std::function in a function which expects a C-style callback? If this is not possible, what is the next best thing? Example: // --- some C code I can not change --- typedef void(*fun)(int); ...
void User_UartCompleteCallback(UART_HandleTypeDef *huart); void User_TIMPeriodElapsedCallback(TIM_HandleTypeDef *htim); /* USER CODE END PFP */ In themainfunction, we need to associate the callback with the interrupt source by using the Register callback function. This should be done after...