man3/toascii.3

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  25 .\" Added BUGS section, aeb, 950919
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  27 .TH TOASCII 3 2016-03-15 "GNU" "Linux Programmer's Manual"
  28 .SH NAME
  29 toascii \- convert character to ASCII
  30 .SH SYNOPSIS
  31 .nf
  32 .B #include <ctype.h>
  33 .PP
  34 .BI "int toascii(int " "c" );
  35 .fi
  36 .PP
  37 .in -4n
  38 Feature Test Macro Requirements for glibc (see
  39 .BR feature_test_macros (7)):
  40 .in
  41 .PP
  42 .BR toascii ():
  43 _XOPEN_SOURCE
  44     || /* Glibc since 2.19: */ _DEFAULT_SOURCE
  45     || /* Glibc versions <= 2.19: */ _SVID_SOURCE || _BSD_SOURCE
  46 .SH DESCRIPTION
  47 .BR toascii ()
  48 converts
  49 .I c
  50 to a 7-bit
  51 .I "unsigned char"
  52 value that fits into the ASCII character set, by clearing the
  53 high-order bits.
  54 .SH RETURN VALUE
  55 The value returned is that of the converted character.
  56 .SH ATTRIBUTES
  57 For an explanation of the terms used in this section, see
  58 .BR attributes (7).
  59 .TS
  60 allbox;
  61 lb lb lb
  62 l l l.
  63 Interface       Attribute       Value
  64 T{
  65 .BR toascii ()
  66 T}      Thread safety   MT-Safe
  67 .TE
  68 .SH CONFORMING TO
  69 SVr4, BSD, POSIX.1-2001.
  70 POSIX.1-2008 marks
  71 .BR toascii ()
  72 as obsolete,
  73 noting that it cannot be used portably in a localized application.
  74 .SH BUGS
  75 Many people will be unhappy if you use this function.
  76 This function will convert accented letters into random characters.
  77 .SH SEE ALSO
  78 .BR isascii (3),
  79 .BR tolower (3),
  80 .BR toupper (3)