C-Functions

90 posts

Last Updated: 11 June 2025

While the C standard library provides robust functions for input/output operations, many C implementations include non-standard I/O functions that offer additional functio...read more

C Language

c-input-output

C-Functions

Types of Recursion in C

Last Updated: 23 July 2025

Recursion is the process in which a function calls itself directly or indirectly to perform the same task it is doing but for some other data. It is possible by adding a c...read more

C Language

C-Functions

Function Parameters in C

Last Updated: 23 July 2025

C function can receive some values to work on from its caller. These values are called function parameters or arguments and the process of supplying these values is called...read more

C Language

C-Functions

perror() in C

Last Updated: 03 February 2025

In C, perror() is a built-in function used to display a custom text description of the error code, which is stored in the system variable errno.Example:C#include stdio.hin...read more

Last Updated: 03 February 2025

In C, file handling errors can be handled using ferror() and feof() functions. But these error flags persists until they are cleared. clearerr() is a built-in function use...read more

Last Updated: 03 February 2025

In C, ferror() is a built-in function used to check errors in files during file operations. It provides a simple way to do file operations without any interruption in your...read more

Last Updated: 14 January 2025

In C, gets() is a function used to read a line of input from standard input (stdin) into a character array. However, gets() has been deprecated since C11 and removed in la...read more

C Language

C-Functions

remove() in C

Last Updated: 23 July 2025

In C, remove() is a standard library function is used to delete a file from the file system. It provides a simple way to manage files in the storage from a C program.Examp...read more

Last Updated: 23 July 2025

In C, rewind() is a built-in function used to reset the given file pointer to the beginning of a file allowing the read and write from the beginning once again in the prog...read more

Last Updated: 08 January 2025

In C, fwrite() is a built-in function used to write a block of data from the program into a file. It can write arrays, structs, or other data to files but is especially de...read more

Last Updated: 08 January 2025

In C, memcmp() is a built-in function used to compare the given number of bytes of data pointed by two pointers passed as arguments. It returns an integer indicating wheth...read more

C Language

C-Functions

fclose() Function in C

Last Updated: 23 July 2025

In C language, fclose() is a standard library function used to close a file that was previously opened using fopen(). This function is the itegral part of the file handlin...read more

C Language

C-Functions

C-File Handling

strncpy() Function in C

Last Updated: 05 August 2024

The strncpy() function in C is a predefined function in the string.h library used to copy a specified number of characters from one string to another. To use this function...read more

ilogb() Function in C

Last Updated: 18 July 2024

The ilogb() function in C is a part of the standard math library math.h. It is used to compute the binary exponent of a floating-point number, which is the exponent of the...read more

nextafter() Function in C

Last Updated: 17 July 2024

In C, the nextafter() is a standard library function that is used to find the next representable floating-point value after a given number in the direction of another spec...read more

C Language

C-Functions

C-Library

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