toascii

       #include <ctype.h>

       int toascii(int c);

   Feature Test Macro Requirements for glibc (see feature_test_macros(7)):

       toascii(): _BSD_SOURCE || _SVID_SOURCE || _XOPEN_SOURCE

DESCRIPTION
       toascii()  converts c to a 7-bit unsigned char value that fits into the
       ASCII character set, by clearing the high-order bits.

RETURN VALUE
       The value returned is that of the converted character.

ATTRIBUTES
       For  an  explanation  of  the  terms  used   in   this   section,   see
       attributes(7).

       +----------+---------------+---------+
       |Interface | Attribute     | Value   |
       +----------+---------------+---------+
       |toascii() | Thread safety | MT-Safe |
       +----------+---------------+---------+
CONFORMING TO
       SVr4,  BSD,  POSIX.1-2001.   POSIX.1-2008  marks toascii() as obsolete,
       noting that it cannot be used portably in a localized application.

BUGS
       Many people will be unhappy if you use this  function.   This  function
       will convert accented letters into random characters.

SEE ALSO
       isascii(3), tolower(3), toupper(3)

COLOPHON
       This  page  is  part of release 4.04 of the Linux man-pages project.  A
       description of the project, information about reporting bugs,  and  the
       latest     version     of     this    page,    can    be    found    at
       http://www.kernel.org/doc/man-pages/.

GNU                               2015-03-02                        TOASCII(3)
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