1 files changed, 79 insertions, 0 deletions
diff --git a/tcl/doc/WrongNumArgs.3 b/tcl/doc/WrongNumArgs.3
new file mode 100644
index 00000000000..d8185f03130
--- /dev/null
+++ b/tcl/doc/WrongNumArgs.3
@@ -0,0 +1,79 @@
+'\"
+'\" Copyright (c) 1994-1997 Sun Microsystems, Inc.
+'\"
+'\" See the file "license.terms" for information on usage and redistribution
+'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
+'\" 
+'\" RCS: @(#) $Id$
+'\" 
+.so man.macros
+.TH Tcl_WrongNumArgs 3 8.0 Tcl "Tcl Library Procedures"
+.BS
+.SH NAME
+Tcl_WrongNumArgs \- generate standard error message for wrong number of arguments
+.SH SYNOPSIS
+.nf
+\fB#include <tcl.h>\fR
+.sp
+\fBTcl_WrongNumArgs\fR(\fIinterp, objc, objv, message\fR)
+.SH ARGUMENTS
+.AS Tcl_Interp "*CONST objv[]"
+.AP Tcl_Interp interp in
+Interpreter in which error will be reported: error message gets stored
+in its result object.
+.AP int objc in
+Number of leading arguments from \fIobjv\fR to include in error
+message.
+.TP
+Tcl_Obj	*CONST \fIobjv\fR[]	(in)
+Arguments to command that had the wrong number of arguments.
+.AP char *message in
+Additional error information to print after leading arguments
+from \fIobjv\fR.  This typically gives the acceptable syntax
+of the command.  This argument may be NULL.
+.BE
+
+.SH DESCRIPTION
+.PP
+\fBTcl_WrongNumArgs\fR is a utility procedure that is invoked by
+command procedures when they discover that they have received the
+wrong number of arguments.  \fBTcl_WrongNumArgs\fR generates a
+standard error message and stores it in the result object of
+\fIinterp\fR.  The message includes the \fIobjc\fR initial
+elements of \fIobjv\fR plus \fImessage\fR.  For example, if
+\fIobjv\fR consists of the values \fBfoo\fR and \fBbar\fR,
+\fIobjc\fR is 1, and \fImessage\fR is ``\fBfileName count\fR''
+then \fIinterp\fR's result object will be set to the following
+string:
+.CS
+wrong # args: should be "foo fileName count"
+.CE
+If \fIobjc\fR is 2, the result will be set to the following string:
+.CS
+wrong # args: should be "foo bar fileName count"
+.CE
+\fIObjc\fR is usually 1, but may be 2 or more for commands like
+\fBstring\fR and the Tk widget commands, which use the first argument
+as a subcommand.  
+.PP
+Some of the objects in the \fIobjv\fR array may be abbreviations for
+a subcommand.  The command
+\fBTcl_GetIndexFromObj\fR will convert the abbreviated string object
+into an \fIindexObject\fR.  If an error occurs in the parsing of the
+subcommand we would like to use the full subcommand name rather than
+the abbreviation.  If the \fBTcl_WrongNumArgs\fR command finds any
+\fIindexObjects\fR in the \fIobjv\fR array it will use the full subcommand
+name in the error message instead of the abbreviated name that was
+origionally passed in.  Using the above example, lets assume that
+\fIbar\fR is actually an abbreviation for \fIbarfly\fR and the object
+is now an indexObject becasue it was passed to
+\fBTcl_GetIndexFromObj\fR.  In this case the error message would be:
+.CS
+wrong # args: should be "foo barfly fileName count"
+.CE
+
+.SH "SEE ALSO"
+Tcl_GetIndexFromObj
+
+.SH KEYWORDS
+command, error message, wrong number of arguments