Which Function Compares String S2 and S1?

The strcmp() function compares the string pointed to by s1 to the string pointed to by s2.

What will be the output when two equal strings are compared using strcmp s1 s2 function?

The strcmp() function is used to compare two strings two strings str1 and str2 . If two strings are same then strcmp() returns 0 , otherwise, it returns a non-zero value. This function compares strings character by character using ASCII value of the characters.

How do I compare two characters in a string?

We compare the strings by using the strcmp() function, i.e., strcmp(str1,str2). This function will compare both the strings str1 and str2. If the function returns 0 value means that both the strings are same, otherwise the strings are not equal.