cppreference.com > Standard C String and Character > strcoll strcoll Syntax:
      #include <string.h>
      int strcoll( const char *str1, const char *str2 );
The strcoll() function compares str1 and str2, much like strcmp(). However, strcoll() performs the comparison using the locale specified by the (Standard C Date & Time) setlocale() function. Related topics: (Standard C Date & Time) setlocale strcmp strxfrm