strxfrm - string transformation

       For an explanation of the terms used in this section, see attributes(7).
       ┌──────────────────────────────────────────────────────────────────────┬───────────────┬────────────────┐
       │ Interface                                                            │ Attribute     │ Value          │
       ├──────────────────────────────────────────────────────────────────────┼───────────────┼────────────────┤
       │ strxfrm()                                                            │ Thread safety │ MT-Safe locale │
       └──────────────────────────────────────────────────────────────────────┴───────────────┴────────────────┘

       The  strxfrm()  function  transforms  the src string into a form such that the result of strcmp(3) on two
       strings that have been transformed with strxfrm() is the same as the result  of  strcoll(3)  on  the  two
       strings  before  their  transformation.   The first n bytes of the transformed string are placed in dest.
       The transformation is based on the program's current locale for category LC_COLLATE.  (See setlocale(3)).

       POSIX.1-2001, C89, SVr4, 4.3BSD.

       Standard C library (libc, -lc)

       strxfrm - string transformation

       The strxfrm() function returns the number of bytes required to  store  the  transformed  string  in  dest
       excluding the terminating null byte ('\0').  If the value returned is n or more, the contents of dest are
       indeterminate.

memcmp(3), setlocale(3), strcasecmp(3), strcmp(3), strcoll(3), string(3)

Linux man-pages 6.9.1                              2024-06-15                                         strxfrm(3)

       C11, POSIX.1-2008.

#include<string.h>size_tstrxfrm(chardest[restrict.n],constcharsrc[restrict.n],size_tn);