ft_strnequ - kibotrel/42-Libft GitHub Wiki
int ft_strnequ(char const *s1, char const *s2, size_t n)
Description :
Checks if the given strings s1 and s2 are identical until n characters.
Return Value :
Returns 1 if both strings are identical or 0 if they are different (0 is also returned when string's end happens before n checks).