man3/toascii.3

   1 '\" t
   2 .\" Copyright (c) 1995 by Jim Van Zandt <jrv@vanzandt.mv.com>
   3 .\"
   4 .\" SPDX-License-Identifier: Linux-man-pages-copyleft
   5 .\"
   6 .\" Added BUGS section, aeb, 950919
   7 .\"
   8 .TH toascii 3 (date) "Linux man-pages (unreleased)"
   9 .SH NAME
  10 toascii \- convert character to ASCII
  11 .SH LIBRARY
  12 Standard C library
  13 .RI ( libc ", " \-lc )
  14 .SH SYNOPSIS
  15 .nf
  16 .B #include <ctype.h>
  17 .PP
  18 .BI "[[deprecated]] int toascii(int " c );
  19 .fi
  20 .PP
  21 .RS -4
  22 Feature Test Macro Requirements for glibc (see
  23 .BR feature_test_macros (7)):
  24 .RE
  25 .PP
  26 .BR toascii ():
  27 .nf
  28     _XOPEN_SOURCE
  29         || /* glibc >= 2.19: */ _DEFAULT_SOURCE
  30         || /* glibc <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE
  31 .fi
  32 .SH DESCRIPTION
  33 .BR toascii ()
  34 converts
  35 .I c
  36 to a 7-bit
  37 .I "unsigned char"
  38 value that fits into the ASCII character set, by clearing the
  39 high-order bits.
  40 .SH RETURN VALUE
  41 The value returned is that of the converted character.
  42 .SH ATTRIBUTES
  43 For an explanation of the terms used in this section, see
  44 .BR attributes (7).
  45 .ad l
  46 .nh
  47 .TS
  48 allbox;
  49 lbx lb lb
  50 l l l.
  51 Interface       Attribute       Value
  52 T{
  53 .BR toascii ()
  54 T}      Thread safety   MT-Safe
  55 .TE
  56 .hy
  57 .ad
  58 .sp 1
  59 .SH STANDARDS
  60 POSIX.1-2008.
  61 .SH HISTORY
  62 SVr4, BSD, POSIX.1-2001.
  63 Obsolete in POSIX.1-2008,
  64 noting that it cannot be used portably in a localized application.
  65 .SH BUGS
  66 Many people will be unhappy if you use this function.
  67 This function will convert accented letters into random characters.
  68 .SH SEE ALSO
  69 .BR isascii (3),
  70 .BR tolower (3),
  71 .BR toupper (3)