how does strcmp() function work??

Question

in what manner does it compare "abc" and "abd" or "abc" and "ABC" ???

Answer 1

Letters are compared by their ascii value.

https://ascii.cl/index.htm?content=mobile

strcmp compares both strings letter by letter, until a difference is found. That letter determines which string is 'lower'.

If the first string is lower, you'll get -1 as return value, if it's larger, you get 1. Return value is 0 if equal to the end.

Answer 2

~ swim ~, but the length only matters when all the letters are equal, right?

bb is still larger than abb, although abb is longer.

So the length seems to function more as a tie breaker.

Answer 3

~ swim ~, lol, you've got some wild pro reputation:

If in a hundred answers you make just one liiittle slip, people are so shocked that they have to downvote. 🤣

Answer 4

we have to downvote a wrong answer to not spread misinformation. I withdrew my vote after I saw the correction and I deleted my answer since it was superfluous now.

Answer 5

Actually strcmp() works by using ascii value.
i.e: a-a, b-b, c-c if all case 0 then this will same.. But in the case of A-a, the result will not be 0 becase ascii value is different.
I think you have understand.

Answer 6

It's compare two string
If they both are same then
Variable become 0
If they are not same then variable become greater than 0
Ex:c=strcmp (str1,str2);
Here if they are same then c become 0
Or it becomes greater than 0.