man0p/ctype.h.0p

   1 .\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved
   2 .TH "<ctype.h>" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
   3 .\" <ctype.h>
   4 .SH NAME
   5 ctype.h \- character types
   6 .SH SYNOPSIS
   7 .LP
   8 \fB#include <ctype.h>\fP
   9 .SH DESCRIPTION
  10 .LP
  11 Some of the functionality described on this reference page extends
  12 the ISO\ C standard. Applications shall define
  13 the appropriate feature test macro (see the System Interfaces volume
  14 of IEEE\ Std\ 1003.1-2001, Section 2.2, The Compilation Environment)
  15 to enable the visibility of these symbols in this
  16 header.
  17 .LP
  18 The following shall be declared as functions and may also be defined
  19 as macros. Function prototypes shall be provided.
  20 .sp
  21 .RS
  22 .nf
  23
  24 \fBint   isalnum(int);
  25 int   isalpha(int);
  26
  27 int   isascii(int);
  28
  29 int   isblank(int);
  30 int   iscntrl(int);
  31 int   isdigit(int);
  32 int   isgraph(int);
  33 int   islower(int);
  34 int   isprint(int);
  35 int   ispunct(int);
  36 int   isspace(int);
  37 int   isupper(int);
  38 int   isxdigit(int);
  39
  40 int   toascii(int);
  41
  42 int   tolower(int);
  43 int   toupper(int);
  44 \fP
  45 .fi
  46 .RE
  47 .LP
  48 The following are defined as macros:
  49 .sp
  50 .RS
  51 .nf
  52
  53 \fB
  54 int   _toupper(int);
  55 int   _tolower(int);
  56
  57 \fP
  58 .fi
  59 .RE
  60 .LP
  61 \fIThe following sections are informative.\fP
  62 .SH APPLICATION USAGE
  63 .LP
  64 None.
  65 .SH RATIONALE
  66 .LP
  67 None.
  68 .SH FUTURE DIRECTIONS
  69 .LP
  70 None.
  71 .SH SEE ALSO
  72 .LP
  73 \fI<locale.h>\fP , the System Interfaces volume of IEEE\ Std\ 1003.1-2001,
  74 \fIisalnum\fP(), \fIisalpha\fP(), \fIisascii\fP(), \fIiscntrl\fP(),
  75 \fIisdigit\fP(), \fIisgraph\fP(), \fIislower\fP(), \fIisprint\fP(),
  76 \fIispunct\fP(), \fIisspace\fP(), \fIisupper\fP(), \fIisxdigit\fP(),
  77 \fImblen\fP(), \fImbstowcs\fP(), \fImbtowc\fP(), \fIsetlocale\fP(),
  78 \fItoascii\fP(), \fItolower\fP(), \fI_tolower\fP(), \fItoupper\fP(),
  79 \fI_toupper\fP(), \fIwcstombs\fP(), \fIwctomb\fP()
  80 .SH COPYRIGHT
  81 Portions of this text are reprinted and reproduced in electronic form
  82 from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
  83 -- Portable Operating System Interface (POSIX), The Open Group Base
  84 Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
  85 Electrical and Electronics Engineers, Inc and The Open Group. In the
  86 event of any discrepancy between this version and the original IEEE and
  87 The Open Group Standard, the original IEEE and The Open Group Standard
  88 is the referee document. The original Standard can be obtained online at
  89 http://www.opengroup.org/unix/online.html .