Problem
What do you mean by String to number and number to string conversion in C programming language?
Solution
There are two functions available for conversion. They are −
- sscanf() − convert string to number
- sprintf () − used for converting number to string
String to number conversion
We can convert string to number using the sscanf() function −
Syntax
sscanf (string name, “control string”,variable list)
Example
#include<stdio.h> main (){ char a[20] = “02 01 2010”; int day, mon, yr; clrscr(); sscanf (a, “%d%d %d”, &day, &mon, &yr); printf ( “Day =%d”, day); printf ( “Month = %d”, mon); printf ( “Year = %d”, yr); getch (); }
Output
Day = 02 Month = 01 Year = 2010
Number to string conversion
We can convert string to number using the sprintf() function −
Syntax
sprintf ( string name, “control string”, variable list)
Example
#include<stdio.h> main (){ char a[50]; int day,mon,yr; day = 02; mon = 01; yr = 2010; crlscr(); sprintf (a, “%d/%d/%d”, day, mon, yr); printf ( “today’s date =%s”,a); getch (); }
Output
Today’s date is 02/01/2010.