C-Library Archives - GeeksforGeeks

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

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copysign() Function in C

Last Updated: 17 July 2024

The copysign() function in C is part of the standard math library math.h and is used to create a floating-point number that combines the magnitude of one number with the s...read more

C Language

C-Functions

C-Library

scalbn() Function in C

Last Updated: 17 July 2024

The scalbn() function in C is part of the standard math library math.h and is used to scale a floating-point number by an integral power of the base (2 raised to the expon...read more

Last Updated: 16 July 2024

The fdim() function in C is part of the standard math library math.h and is used to compute the positive difference between two floating-point numbers. This function is pa...read more

How to Create a Static Library in C?

Last Updated: 11 July 2024

In C, we can create our own libraries that contains the code for the functions or macros that we may need very often. These libraries can be then used in our programs. In...read more

remquo() Function in C

Last Updated: 10 July 2024

The remquo() function in C is part of the standard math library math.h and is used to compute the remainder and part of the quotient of the division of two floating-point ...read more

Last Updated: 10 November 2022

islower() function is used to check whether a character is a lowercase letter or not. It is a standard library function defined in the ctype.h header file.Syntax:int islow...read more

C Language

C-Functions

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C Library Function - putc()

Last Updated: 06 June 2023

In C, the putc() function is used to write a character passed as an argument to a given stream. It is a standard library function defined in the stdio.h header file. The f...read more

Last Updated: 16 April 2025

In C programming, a header file is a file that ends with the .h extension and contains features like functions, data types, macros, etc that can be used by any other C pro...read more

std::string::crbegin() and std::string::crend() in C++ with Examples

Last Updated: 10 July 2022

std::string::crbegin()The std::string::crbegin() is a string class built-in function that returns a constant reverse iterator referring to the last element in the string. ...read more

std::string::rfind in C++ with Examples

Last Updated: 26 May 2022

The std::string::rfind is a string class member function that is used to search the last occurrence of any character in the string. If the character is present in the stri...read more

<complex.h> header file in C with Examples

Last Updated: 07 April 2020

Most of the C Programs deals with complex number operations and manipulations by using complex.h header file. This header file was added in C99 Standard. C++ standard libr...read more

<cfloat> float.h in C/C++ with Examples

Last Updated: 25 November 2019

This header file consists of platform-dependent and implementation specific floating point values. A floating point has four parts.SignIts value can be either negative or ...read more

time.h localtime() function in C with Examples

Last Updated: 07 November 2019

The localtime() function is defined in the time.h header file. The localtime( ) function return the local time of the user i.e time present at the task bar in computer.Syn...read more

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