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 ...
Use of fgetc() function in C? How to use sizeof operator in C. _Alignof or alignof Operator in C Alignment specifiers in C ( _Alignas). Function Specifiers in C. Type qualifiers in C. Punctuators in C. Elements of C language. ...
When it comes to solving problems in computer programming, there are many techniques available. One of these isrecursion, which is a process that involves calling a function within itself. This article will explore how to implement recursive functions in the C programming language. We will discuss...
The toupper function C programming converts a lowercase letter to a corresponding uppercase letter. In the default “C” locale, a lowercase letter is any of:a b c d e f g h i j k l m n o p q r s t u v w x y z. which translates respectively to:A B C D E F G H I...
Are the most commonly used assertion in C. Conclusion The assertions shouldn’t be utilized to handle the same errors. But runtime errors cannot be captured by using assert method. It may be necessary for each runtime fault and is designed to use the programming language. The typical instance...
Use thegetnameinfoFunction to IP Address to Host Name in C Thegetnameinfofunction is used in conjunction withgetaddrinfoin this case, and it retrieves the hostnames for corresponding IP addresses. Notice that we process the user input from the first command-line argument and pass it as theget...
process the user input until the new line orEOFis encountered, there are no guarantees it will fit in the fixed-sizecharbuffer. If we have to use a fixed buffer, we are responsible for keeping a count of the input size and stopping storing it in the buffer after the capacity is reached...
Here is main code in C language (main.c) : #include <stdio.h> extern void func(void); void f(void) { printf("\n being used within C code\n"); } int main(void) { func(); f(); return 0; } Please note that the C++ function is declared as extern here. ...
How to use a std::function as a C style callback How can I use astd::functionin 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 ---typedefvoid(*fun)(int);voidregister_callback(...
Modern C++ has a lot of useful functions thanks to its evolution from the C language. One of them was thegets()function that we use to get string inputs and that we were able to use in C++11 or earlier. In C++14, thegetsfunction was removed, whilefgetsor other input functions remain...