_tolower(3p) - phpMan

_TOLOWER(P)                                                        _TOLOWER(P)



NAME
       _tolower - transliterate uppercase characters to lowercase

SYNOPSIS
       #include <ctype.h>

       int _tolower(int c);


DESCRIPTION
       The  _tolower() macro shall be equivalent to tolower(c) except that the application
       shall ensure that the argument c is an uppercase letter.

RETURN VALUE
       Upon successful completion, _tolower() shall return  the  lowercase  letter  corre-
       sponding to the argument passed.

ERRORS
       No errors are defined.

       The following sections are informative.

EXAMPLES
       None.

APPLICATION USAGE
       None.

RATIONALE
       None.

FUTURE DIRECTIONS
       None.

SEE ALSO
       tolower()  , isupper() , the Base Definitions volume of IEEE Std 1003.1-2001, Chap-
       ter 7, Locale, <ctype.h>

COPYRIGHT
       Portions of this text are reprinted and reproduced in electronic form from IEEE Std
       1003.1,  2003  Edition,  Standard  for Information Technology -- Portable Operating
       System Interface (POSIX), The Open Group Base Specifications Issue 6, Copyright (C)
       2001-2003  by  the  Institute  of Electrical and Electronics Engineers, Inc and The
       Open Group. In the event of any discrepancy between this version and  the  original
       IEEE  and The Open Group Standard, the original IEEE and The Open Group Standard is
       the  referee  document.  The  original  Standard  can   be   obtained   online   at
       http://www.opengroup.org/unix/online.html .



POSIX                                2003                          _TOLOWER(P)

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