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STRXFRM(3) FreeBSD 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 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"). The strxfrm_l() function conforms to IEEE Std 1003.1-2008 ("POSIX.1"). FreeBSD 14.1-RELEASE-p8 June 4, 1993 FreeBSD 14.1-RELEASE-p8