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conv(3C)							      conv(3C)

NAME
       toupper(),  tolower(),  _toupper(),  _tolower(),	 toascii() - translate
       characters

SYNOPSIS
DESCRIPTION
       and have as domain the range of getc(3S): the integers from −1  through
       255.   If the argument of represents a lower-case letter, the result is
       the corresponding upper-case letter.  If the argument of represents  an
       upper-case  letter,  the result is the corresponding lower-case letter.
       All other arguments in the domain are  returned	unchanged.   Arguments
       outside the domain cause undefined results.

       The macros and are identical to and respectively.

       yields its argument with all bits that are not part of a standard 7-bit
       ASCII character cleared; it is intended for  compatibility  with	 other
       systems.

WARNINGS
       is  supplied  both  as a library function and as a macro defined in the
       header.	Normally, the macro version is used.  To  obtain  the  library
       function,  either use a to remove the macro definition or, if compiling
       in ANSI C mode, enclose the function name in parenthesis	 or  take  its
       address.	 The following examples use the library function for

       or

       The following example use the library function for

EXTERNAL INFLUENCES
   Locale
       The category determines the translations to be done.

   International Code Set Support
       Single-byte character code sets are supported.

AUTHOR
       was developed by IBM, OSF, and HP.

SEE ALSO
       ctype(3C), getc(3S), setlocale(3C), lang(5), thread_safety(5).

STANDARDS CONFORMANCE
								      conv(3C)

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