SDL_strncasecmp - Compare two UTF-8 strings, case-insensitively, up to a number of bytes.

       This function is available since SDL 3.2.0.

Simple Directmedia Layer                           SDL 3.2.20                                 SDL_strncasecmp(3)

       This  will work with Unicode strings, using a technique called "case-folding" to handle the vast majority
       of case-sensitive human languages regardless of system locale. It  can  deal  with  expanding  values:  a
       German Eszett character can compare against two ASCII 's' chars and be considered a match, for example. A
       notable exception: it does not handle the Turkish 'i' character; human language is complicated!

       Since  this  handles  Unicode,  it  expects  the string to be well-formed UTF-8 and not a null-terminated
       string of arbitrary bytes. Bytes that are not  valid  UTF-8  are  treated  as  Unicode  character  U+FFFD
       (REPLACEMENT CHARACTER), which is to say two strings of random bits may turn out to match if they convert
       to the same amount of replacement characters.

       Note  that while this function is intended to be used with UTF-8, maxlen specifies a _byte_ limit! If the
       limit lands in the middle of a multi-byte UTF-8 sequence, it may convert a portion of the final character
       to one or more Unicode character U+FFFD (REPLACEMENT CHARACTER) so as not to overflow a buffer.

       maxlen specifies a maximum number of bytes to compare; if the strings match to this number of  bytes  (or
       both  have  matched  to a null-terminator character before this number of bytes), they will be considered
       equal.

str1   the first string to compare. NULL is not permitted!

       str2   the second string to compare. NULL is not permitted!

       maxlen the maximum number of bytes to compare.

       SDL_strncasecmp - Compare two UTF-8 strings, case-insensitively, up to a number of bytes.

       Returns less than zero if str1 is "less than" str2, greater than zero if str1 is "greater than" str2, and
       zero if the strings match exactly.

#include<SDL3/SDL_stdinc.h>intSDL_strncasecmp(constchar*str1,constchar*str2,size_tmaxlen);

       It is safe to call this function from any thread.