Question

How to use strncat() function to append (concatenate) the first n characters from string s1[] to s2[] in C

Answer 1

#include <stdio.h>
#include <string.h>

int main(void)
{
	char s1[256] = "development environment";
	char s2[64];
	
	s2[0] = '\0';
	strncat(s2, s1, 7);
	
	puts(s2);
	
	return 0;
}

 
/*
   
run:
   
develop

*/

 

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Answer 2

#include <stdio.h>
#include <string.h>

int main(void)
{
	char s1[256] = "development environment";
	char s2[64] = "C ";
	
	strncat(s2, s1, 7);
	
	puts(s2);
	
	return 0;
}

 
/*
   
run:
   
C develop

*/

 

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