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#include<stdio.h>
#include<string.h>
 
void StringER(char *S1, char *S2)
{
char S3[50];
char *S4;
 
printf("\n");
//Copy and Duplicate a String.
 
strcpy(S3," Samuel");
S4=strdup(S3); //returns a pointer
 
printf("\n Copied String : %s", S3);
printf("\n Duplicated String : %s", S4);
 
 
//printf("\n");
//Cases
 
//char *sL=strlwr("HELP");
//printf("\n HELP or %s",sL);
  
printf("\n");
//Comparison with strcmp() stricmp() | Others: strncmp() strnicmp() 
 
if( strcmp(S1,S2)==0)
printf("\n String 1 and 2 are the same. Case Sensitive ");
 
//else if(B==0)
//printf("\n String 1 and 2 are the . Not Case Sensitive ");
 
else if ( strncmp(S1, S2, 2) == 0)
{printf("\n First 2 characters of String 1 and 2 are the same.");
printf(" Case Sensitive"); }

 
//else if ( strnicmp(S1,S2,2) == 0 )
/*printf("\n First 2 characters of String 1 and 2 

are the same. Not Case Sensitive"); */
 
else
printf("\n String 1 and 2 are NOT the same. Case Sensitive ");
 
 
printf("\n");
//Concatenate with S3
 
strcat(S1,S3); // pointer and array both can be used. *S1 S3[]
printf("\n Concatenated String : %s",S1);
 
strncat(S2,S3,4);
printf("\n Concatenated String : %s",S2);
 
//printf("\n");
//reverse
//char *sR=strrev(S1);
//printf("\n Reversed String : %s",sR);
 
}
 
main()
{
 
char S1[50];
char S2[50];
 
printf(" Enter the String 1 : ");
gets(S1);
 
printf(" Enter the String 2 : ");
gets(S2);
 
StringER(S1,S2); 

/* No & (ampersand) for Strings in scanf 
and pointers - ptr=S1; unlike ptr=&a;  */
 
}