Use C strcmp to compare two strings
Syntax
C strcmp function has the following syntax.
int strcmp(const char *str1, const char *str2);Header
C strcmp function
is from header file string.h.
Description
C strcmp function lexicographically compares two strings and returns an integer based on the outcome:
Return
| Value | Meaning |
|---|---|
| < 0 | str1 is less than str2 |
| 0 | str1 is equal to str2 |
| >0 | str1 is greater than str2 |
Example
Use C strcmp function to compare two strings.
#include<stdio.h>
#include<string.h>
/*from w w w . j a v a2 s . c om*/
int main(void){
char s[80];
printf("Enter password: ");
gets(s);
if(strcmp(s, "pass")) {
printf("Invalid Password\n");
return 0;
}
return 1;
}
The code above generates the following result.
