strxfrm man page on FreeBSD

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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);

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 compar‐
     ing two original strings with strcoll().

RETURN VALUES
     Upon successful completion, strxfrm() returns the length of the trans‐
     formed string not including the terminating null character.  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”).

BSD				 June 4, 1993				   BSD
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