60 lines
1.9 KiB
Groff
60 lines
1.9 KiB
Groff
|
'\"
|
||
|
|
'\" Copyright (c) 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.
|
||
|
|
'\"
|
||
|
|
'\" SCCS: @(#) PkgRequire.3 1.4 96/02/15 20:03:16
|
||
|
|
'\"
|
||
|
|
.so man.macros
|
||
|
|
.TH Tcl_PkgRequire 3 7.5 Tcl "Tcl Library Procedures"
|
||
|
|
.BS
|
||
|
|
.SH NAME
|
||
|
|
Tcl_PkgRequire, Tcl_PkgProvide \- package version control
|
||
|
|
.SH SYNOPSIS
|
||
|
|
.nf
|
||
|
|
\fB#include <tcl.h>\fR
|
||
|
|
.sp
|
||
|
|
char *
|
||
|
|
\fBTcl_PkgRequire\fR(\fIinterp, name, version, exact\fR)
|
||
|
|
.sp
|
||
|
|
int
|
||
|
|
\fBTcl_PkgProvide\fR(\fIinterp, name, version\fR)
|
||
|
|
.SH ARGUMENTS
|
||
|
|
.AS Tcl_FreeProc clientData
|
||
|
|
.AP Tcl_Interp *interp in
|
||
|
|
Interpreter where package is needed or available.
|
||
|
|
.AP char *name in
|
||
|
|
Name of package.
|
||
|
|
.AP char *version in
|
||
|
|
A version string consisting of one or more decimal numbers
|
||
|
|
separated by dots.
|
||
|
|
.AP int exact in
|
||
|
|
Non-zero means that only the particular version specified by
|
||
|
|
\fIversion\fR is acceptable.
|
||
|
|
Zero means that newer versions than \fIversion\fR are also
|
||
|
|
acceptable as long as they have the same major version number
|
||
|
|
as \fIversion\fR.
|
||
|
|
.BE
|
||
|
|
|
||
|
|
.SH DESCRIPTION
|
||
|
|
.PP
|
||
|
|
These procedures provide C-level interfaces to Tcl's package and
|
||
|
|
version management facilities.
|
||
|
|
\fBTcl_PkgRequire\fR is equivalent to the \fBpackage require\fR
|
||
|
|
command, and \fBTcl_PkgProvide\fR is equivalent to the
|
||
|
|
\fBpackage provide\fR command.
|
||
|
|
See the documentation for the Tcl commands for details on what these
|
||
|
|
procedures do.
|
||
|
|
If \fBTcl_PkgRequire\fR completes successfully it returns a pointer
|
||
|
|
to the version string for the version of the package that is provided
|
||
|
|
in the interpreter (which may be different than \fIversion\fR); if
|
||
|
|
an error occurs it returns NULL and leaves an error message in
|
||
|
|
\fIinterp->result\fR.
|
||
|
|
\fBTcl_PkgProvide\fR returns TCL_OK if it completes successfully;
|
||
|
|
if an error occurs it returns TCL_ERROR and leaves an error message
|
||
|
|
in \fIinterp->result\fR.
|
||
|
|
|
||
|
|
.SH KEYWORDS
|
||
|
|
package, provide, require, version
|