1 files changed, 65 insertions, 0 deletions
diff --git a/man3p/isdigit.3p b/man3p/isdigit.3p
new file mode 100644
index 000000000..224209fb1
--- /dev/null
+++ b/man3p/isdigit.3p
@@ -0,0 +1,65 @@
+.\" Copyright (c) 2001-2003 The Open Group, All Rights Reserved 
+.TH "ISDIGIT" P 2003 "IEEE/The Open Group" "POSIX Programmer's Manual"
+.\" isdigit 
+.SH NAME
+isdigit \- test for a decimal digit
+.SH SYNOPSIS
+.LP
+\fB#include <ctype.h>
+.br
+.sp
+int isdigit(int\fP \fIc\fP\fB);
+.br
+\fP
+.SH DESCRIPTION
+.LP
+The \fIisdigit\fP() function shall test whether \fIc\fP is a character
+of class \fBdigit\fP in the program's current locale;
+see the Base Definitions volume of IEEE\ Std\ 1003.1-2001, Chapter
+7, Locale.
+.LP
+The \fIc\fP argument is an \fBint\fP, the value of which the application
+shall ensure is a character representable as an
+\fBunsigned char\fP or equal to the value of the macro EOF. If the
+argument has any other value, the behavior is undefined.
+.SH RETURN VALUE
+.LP
+The \fIisdigit\fP() function shall return non-zero if \fIc\fP is a
+decimal digit; otherwise, it shall return 0.
+.SH ERRORS
+.LP
+No errors are defined.
+.LP
+\fIThe following sections are informative.\fP
+.SH EXAMPLES
+.LP
+None.
+.SH APPLICATION USAGE
+.LP
+To ensure applications portability, especially across natural languages,
+only this function and those listed in the SEE ALSO
+section should be used for character classification.
+.SH RATIONALE
+.LP
+None.
+.SH FUTURE DIRECTIONS
+.LP
+None.
+.SH SEE ALSO
+.LP
+\fIisalnum\fP() , \fIisalpha\fP() , \fIiscntrl\fP() , \fIisgraph\fP()
+, \fIislower\fP() ,
+\fIisprint\fP() , \fIispunct\fP() , \fIisspace\fP() , \fIisupper\fP()
+, \fIisxdigit\fP() ,
+the Base Definitions volume of IEEE\ Std\ 1003.1-2001, Chapter 7,
+Locale, \fI<ctype.h>\fP
+.SH COPYRIGHT
+Portions of this text are reprinted and reproduced in electronic form
+from IEEE Std 1003.1, 2003 Edition, Standard for Information Technology
+-- Portable Operating System Interface (POSIX), The Open Group Base
+Specifications Issue 6, Copyright (C) 2001-2003 by the Institute of
+Electrical and Electronics Engineers, Inc and The Open Group. In the
+event of any discrepancy between this version and the original IEEE and
+The Open Group Standard, the original IEEE and The Open Group Standard
+is the referee document. The original Standard can be obtained online at
+http://www.opengroup.org/unix/online.html .