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 ...
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...
The isalpha function in C programming checks whether the argument passed is an alphabetic character (a to z and A-Z) or not.
Let’s now look at some examples, to understand this function better. We’ll also be usingfork()along withexecvp(), so that we can still have our C program with us! Using execvp() in C / C++ - Some Examples If you want to see what exactly happens if you try to useexecvp()withou...
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...
If we are unable to use the assert() function, we must be disabled, so ndebug should be defined. It was decided to declare it using #define NDEBUG code; otherwise, the code compilation should pass. -NDEBUG in the code. The code compilation will pass -DNDEBUG to disable the assert() fu...
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...
If more than one value satisfies all the criteria, you will get only the first value in this process. To get all the values that satisfy all the criteria, use the FILTER function instead. Common Errors with CONCATENATE Function of MS Excel ErrorWhen They Show #N/A! This shows when the ...
“In this article, you will learn how to use the printf() function to display output to the user. The function outputs formatted data to the screen. The printf() method is a built-in C library function that is provided by default in the C library. This function is declared, and the ...
How to Use IF Function in Excel: 8 Suitable Examples Method 1 – Using the IF Function to Show Statements Based on a Logical Test In our dataset, there are two columns containing the Sales Target and Sales Achieved for some products. We’ll check and show statements in Column E if the ...