In the C Programming Language, the strncat feature appends a copy of the string pointed to by means of s2 to the end of the string pointed to with the aid of s1. It returns a pointer to s1 where the resulting concatenated string resides.
The strncat feature will give up copying when a null personality is encountered or n characters have been copied.
Syntax
The syntax for the strncat characteristic in the C Language is:
char *strncat(char *s1, const char *s2, size_t n);Parameters or Arguments
s1 A pointer to a string that will be modified. s2 will be copied to the end of s1. s2 A pointer to a string that will be appended to the end of s1. n The wide variety of characters to be appended.
Returns
The strncat characteristic returns a pointer to s1 (where the resulting concatenated string resides).
Required Header
In the C Language, the required header for the strncat feature is:
#include <string.h>Applies To
In the C Language, the strncat function can be used in the following versions:
ANSI/ISO 9899-1990
strncat Example
Let’s seem to be at an example to see how you would use the strncat feature in a C program:
/* Example using strncat by TechOnTheNet.com */
#include <stdio.h>
#include <string.h>
int main(int argc, const char * argv[])
{
/* Define an example variable capable of holding up to 100 characters */
char example[100];
/* Copy the string "TechOnTheNet.com " into the example variable */
strcpy (example, "TechOnTheNet.com ");
/* Concatenate the string in the example variable with 21 characters
from the string "is over 10 years old." */
strncat (example, "is over 10 years old.", 21);
/* Display the contents of the variable to the screen */
printf("%s\n", example);
return 0;
}When compiled and run, this software will output:
TechOnTheNet.com is over 10 years old.Similar Functions
Other C functions that are similar to the strncat function:
strcat function <string.h>