freebsd man page for strxfrm_l

STRXFRM(3)						   BSD Library Functions Manual 						STRXFRM(3)

NAME
     strxfrm -- transform a string under locale

LIBRARY
     Standard C Library (libc, -lc)

SYNOPSIS
     #include <string.h>

     size_t
     strxfrm(char * restrict dst, const char * restrict src, size_t n);

     size_t
     strxfrm_l(char * restrict dst, const char *restrict src, size_t n, locale_t loc);

DESCRIPTION
     The strxfrm() function transforms a null-terminated string pointed to by src according to the current locale collation if any, then copies
     the transformed string into dst.  Not more than n characters are copied into dst, including the terminating null character added.	If n is
     set to 0 (it helps to determine an actual size needed for transformation), dst is permitted to be a NULL pointer.

     Comparing two strings using strcmp() after strxfrm() is equal to comparing two original strings with strcoll().

     strxfrm_l() does the same, however takes an explicit locale rather than the global locale.

RETURN VALUES
     Upon successful completion, strxfrm() and strxfrm_l() return the length of the transformed string not including the terminating null charac-
     ter.  If this value is n or more, the contents of dst are indeterminate.

SEE ALSO
     setlocale(3), strcmp(3), strcoll(3), wcsxfrm(3)

STANDARDS
     The strxfrm() function conforms to ISO/IEC 9899:1990 (``ISO C90'').  The strxfrm_l() function conforms to IEEE Std 1003.1-2008 (``POSIX.1'').

BSD
								   June 4, 1993 							       BSD