C program to print error code, if
directory is already present [system call: mkdir]
#include <stdio.h>
#include <string.h>
#include <errno.h>
int main () {
FILE *fp;
errno = 0;
int dir_result =
mkdir("neelu", 0755);
if(dir_result !=
0 && errno != EEXIST){
printf( "Value of errno: %s\n", strerror(errno));
}
else if (errno ==
EEXIST)
{
printf("error code: %s", strerror(errno));
}
return(0);
}