strcmp: lexicographically compares two strings : strcmp « string.h « C / ANSI-C

1. C / ANSI-C
2. string.h
3. strcmp

strcmp: lexicographically compares two strings

    

 
//Declaration:  int strcmp(const char *str1, const char *str2); 
//Return:       returns an integer based on the outcome: 
                < 0  :  str1 is less than str2 
                0    :  str1 is equal to str2 
                >0   :  str1 is greater than str2 

    
  


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

int main(void){
    char s[80];

    printf("Enter password: ");
    gets(s);
    if(strcmp(s, "pass")) {
      printf("Invalid Password\n");
      return 0;
    }
    return 1;
}

         

/*
Enter password: 34
Invalid Password
*/
           
       

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