![ #include<iostream.h>
#include<string.h>
Int main()
{
Char str[100];
Puts(“enter any string?”);
Gets(str);
Cout<<“length of string is=“<<strlen(str);
}](https://image.slidesharecdn.com/pfpresentation-copy-200405150927/85/built-in-function-10-320.jpg)
built in function
- 1. Presented by: Zarafshan 018 Kinza 020 Yousra 014
- 2. A type of function that is available as apart of language is known as built-in function/library function. These functions are ready made programs. Built-in function make programming faster and easier. Different built-in function are defined in different header files.
- 3. The fmod function is used to find remainder by dividing two floating point values. Syntax fmod(x , y)
- 4. #include<iostream> #include<math.h> int main() { double a,b,r; cout<<"enter first double value "; cin>>a; cout<<"enter 2nd double value "; cin>>b; r=fmod(a,b); cout<<"the result of fmod()="<<r; }
- 5. The gotoxy() is used to move the cursor to a specified location on the screen. It moves the cursor with respect to x-axis And y-axis. It is very useful when the output is to be displayed at a specific location on the screen. Syntax gotoxy(x , y)
- 6. #include<iostream> #include<conio.h> int main() { gotoxy(0,0); cout<<"pakistan zindabad"; gotoxy(1,50); cout<<"pakistan zindabad"; getch(); }
- 7. The word ‘putchar’ stands for put character. The function is used to display single character on the screen. Syntax Putchar(ch); The parameter ch is the variable or constant whose value is to be displayed on screen.
- 8. #include<iostream> #include<stdio.h> int main() { char ch; cout<<"enter a character "; cin>>ch; putchar(ch) putchar('*'); }
- 9. Strlen stand for string length. This function is used to find the length of a string.Its counts the total number of charater including spaces. Null character is excluded. “String.h”header file contains the function that are used to process strings. Syntax: int strlen(string);
- 10. #include<iostream.h> #include<string.h> Int main() { Char str[100]; Puts(“enter any string?”); Gets(str); Cout<<“length of string is=“<<strlen(str); }
Editor's Notes
- #7: Note: The above example displays “Pakistan zindabad” on the top and bottom of the screen.