In this post, we will see how to know if two strings are equal in ANSI C since we cannot simply use the operator ==to compare strings, they are a complex thing.
- strcmp function in C.
- Compare strings in C using strcmp.
- Know if two strings are equal using strcmp. Let's see how to use strcmp to compare strings in C and find out if both are the same since strings are actually a set of characters within ANSI C.
As in PHP, in C there is the function strcmpthat means "string compare". This function can return 0, a number greater than 0, or a number less than 0.
I know, it sounds confusing but let's see.
The function will strcmpreturn if the strings are equal. In case the first is "less" than the second, it will return a negative number, and finally if the first is greater than the second, it will return a positive number.
Usually, these numbers are 0, -1 and 1, but we can make the comparisons based on 0 (that is if it is less than zero, equal to zero or greater than zero). Read more