Question

which of the following is correct loction of Function library ?​

Answer 1

Answer:

C Standard library functions or simply C Library functions are inbuilt functions in C programming.

The prototype and data definitions of these functions are present in their respective header files. To use these functions we need to include the header file in our program. For example,

If you want to use the printf() function, the header file <stdio.h> should be included.

#include <stdio.h>

int main()

{

  printf("Catch me if you can.");  

}

If you try to use printf() without including the stdio.h header file, you will get an error.

Explanation:

Answer 2

Answer:

Library functions in C language are inbuilt functions which are grouped together and placed in a common place called library. ... All C standard library functions are declared in many header files which are saved as file_name. h. Actually, function declaration, definition for macros are given in all header files.

Functions are available in a number of libraries. These are accessed by including header files in your code; the header file is a pointer/reference to the library. Library functions include standard input/output

library functions are those functions which reduce our time to write a lengthy code. for example: 1. you want to find the square root of a number...instead of writing the code you can use the function sqrt(); which use the file math.h.