strnset() function in C
Last Updated :
20 Feb, 2023
The strnset() function is a builtin function in C and it sets the first n characters of a string to a given character. If n is greater than the length of string, the length of string is used in place of n. Syntax:
char *strnset(const char *str, char ch, int n);
Parameters:
- str: This is the original string in which some character are replaced by a given character.
- ch: ch represents the given character.
- n: n represents the number of character which is replaced by the given character.
Return Value: It returns the modified string obtained after replacing the first characters of the given string str.
Time Complexity: O(1)
Auxiliary Space: O(1)
Below programs illustrate the strnset() function in C: Program 1:
C
#include <stdio.h>
#include <string.h>
int main()
{
char str[] = "GeeksforGeeks" ;
printf ( "Original String: %s\n" , str);
printf ( "Modified String: %s\n" , strnset(str, '*' , 5));
return 0;
}
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Output:
Original String: GeeksforGeeks
Modified String: *****forGeeks
Program 2:
C
#include <stdio.h>
#include <string.h>
int main()
{
char str[] = "Computer Science" ;
printf ( "Original String: %s\n" , str);
printf ( "Modified String: %s\n" , strnset(str, '*' , 5));
return 0;
}
|
Output:
Original String: Computer Science
Modified String: *****ter Science
Note: The strnset() function is not a part of the standard C library and thus might not run on the online compilers.
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