DragonFly On-Line Manual Pages

Search: Section:  

STRXFRM(3)            DragonFly Library Functions Manual            STRXFRM(3)


strxfrm -- transform a string under locale


Standard C Library (libc, -lc)


#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);


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.


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.


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


The strxfrm() function conforms to ISO/IEC 9899:1990 (``ISO C90''). The strxfrm_l() function conforms to IEEE Std 1003.1-2008 (``POSIX.1''). DragonFly 3.7 June 4, 1993 DragonFly 3.7

Search: Section: