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/*
* tclTomMathStubLib.c --
*
* Stub object that will be statically linked into extensions that want
* to access Tcl.
*
* Copyright (c) 1998-1999 by Scriptics Corporation.
* Copyright (c) 1998 Paul Duffin.
*
* See the file "license.terms" for information on usage and redistribution of
* this file, and for a DISCLAIMER OF ALL WARRANTIES.
*
* RCS: @(#) $Id: tclTomMathStubLib.c,v 1.3 2010/08/31 20:48:17 nijtmans Exp $
*/
/*
* We need to ensure that we use the stub macros so that this file contains no
* references to any of the stub functions. This will make it possible to
* build an extension that references Tcl_InitStubs but doesn't end up
* including the rest of the stub functions.
*/
#define USE_TCL_STUBS
#include "tclInt.h"
MODULE_SCOPE const TclTomMathStubs *tclTomMathStubsPtr;
const TclTomMathStubs *tclTomMathStubsPtr = NULL;
/*
*----------------------------------------------------------------------
*
* TclTomMathInitStubs --
*
* Initializes the Stubs table for Tcl's subset of libtommath
*
* Results:
* Returns a standard Tcl result.
*
* This procedure should not be called directly, but rather through
* the TclTomMath_InitStubs macro, to insure that the Stubs table
* matches the header files used in compilation.
*
*----------------------------------------------------------------------
*/
MODULE_SCOPE const char *
TclTomMathInitializeStubs(
Tcl_Interp *interp, /* Tcl interpreter */
const char *version, /* Tcl version needed */
int epoch, /* Stubs table epoch from the header files */
int revision) /* Stubs table revision number from the
* header files */
{
int exact = 0;
const char *packageName = "tcl::tommath";
const char *errMsg = NULL;
ClientData pkgClientData = NULL;
const char *actualVersion =
Tcl_PkgRequireEx(interp, packageName, version, exact, &pkgClientData);
const TclTomMathStubs *stubsPtr = pkgClientData;
if (actualVersion == NULL) {
return NULL;
}
if (pkgClientData == NULL) {
errMsg = "missing stub table pointer";
} else if ((stubsPtr->tclBN_epoch)() != epoch) {
errMsg = "epoch number mismatch";
} else if ((stubsPtr->tclBN_revision)() != revision) {
errMsg = "requires a later revision";
} else {
tclTomMathStubsPtr = stubsPtr;
return actualVersion;
}
Tcl_ResetResult(interp);
Tcl_AppendResult(interp, "error loading ", packageName,
" (requested version ", version, ", actual version ",
actualVersion, "): ", errMsg, NULL);
return NULL;
}
/*
* Local Variables:
* mode: c
* c-basic-offset: 4
* fill-column: 78
* End:
*/
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