'\"
'\" Copyright (c) 1989-1993 The Regents of the University of California.
'\" Copyright (c) 1994-1996 Sun Microsystems, Inc.
'\"
'\" See the file "license.terms" for information on usage and redistribution
'\" of this file, and for a DISCLAIMER OF ALL WARRANTIES.
'\"
.TH Tcl_Interp 3 8.7 Tcl "Tcl Library Procedures"
.so man.macros
.BS
.SH NAME
Tcl_Interp \- client-visible fields of interpreter structures
.SH SYNOPSIS
.nf
\fB#include <tcl.h>\fR
.sp
typedef struct {
    char *\fIresult\fR;			/* NO LONGER AVAILABLE */
    Tcl_FreeProc *\fIfreeProc\fR;	/* NO LONGER AVAILABLE */
    int \fIerrorLine\fR;		/* NO LONGER AVAILABLE */
} \fBTcl_Interp\fR;

typedef void \fBTcl_FreeProc\fR(
        char *\fIblockPtr\fR);
.BE
.SH DESCRIPTION
.PP
The \fBTcl_CreateInterp\fR procedure returns a pointer to a \fBTcl_Interp\fR
structure.  Callers of \fBTcl_CreateInterp\fR should use this pointer
as an opaque token, suitable for nothing other than passing back to
other routines in the Tcl interface from the same thread that called
\fBTcl_CreateInterp\fR.  The \fBTcl_Interp\fR struct no longer has any
supported client-visible fields.  Supported public routines such as
\fBTcl_SetResult\fR, \fBTcl_GetResult\fR, \fBTcl_SetErrorLine\fR,
\fBTcl_GetErrorLine\fR must be used instead.
.PP
Any legacy programs and extensions trying to access the fields above
in their source code will need conversion to compile for Tcl 8.7 and later.

.SH KEYWORDS
interpreter, result