unixmain.cpp

来自「算断裂的」· C++ 代码 · 共 147 行

// ------------------------------------------------------------------
// unixmain.cpp
//
// This file contains the entry point for the Windows version of
// QMG running under Tcl.  It is a modified version of tkAppInit.c
// that is shipped with Tcl/Tk.
// ------------------------------------------------------------------
// Author: Stephen A. Vavasis
// Copyright (c) 1999 by Cornell University.  All rights reserved.
// 
// See the accompanying file 'Copyright' for authorship information,
// the terms of the license governing this software, and disclaimers
// concerning this software.
// ------------------------------------------------------------------
// This file is part of the QMG software.  
// Version 2.0 of QMG, release date September 3, 1999.
// ------------------------------------------------------------------



/* 
 * unixmain.cpp (former tkAppInit.c)
 *
 *	Provides a default version of the Tcl_AppInit procedure for
 *	use in wish and similar Tk-based applications.
 *
 * Copyright (c) 1993 The Regents of the University of California.
 * Copyright (c) 1994 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: @(#) tkAppInit.c 1.22 96/05/29 09:47:08
 */
/* Modified for QMG by S. Vavasis.  The modifications are:
(1) rewrite function arg lists in C++ format instead of K&R C.
(2) Call qmg_init.

 */


/*
 * The following variable is a special hack that is needed in order for
 * Sun shared libraries to be used for Tcl.
 */

#include "tcl.h"

extern "C" int matherr();
extern "C" int *tclDummyMathPtr = (int *) matherr;



extern "C" {
  extern int qmg_init(Tcl_Interp* interp);
}




#ifdef TK_TEST
EXTERN  int		Tktest_Init _ANSI_ARGS_((Tcl_Interp *interp));
#endif /* TK_TEST */

/*
 *----------------------------------------------------------------------
 *
 * main --
 *
 *	This is the main program for the application.
 *
 * Results:
 *	None: Tk_Main never returns here, so this procedure never
 *	returns either.
 *
 * Side effects:
 *	Whatever the application does.
 *
 *----------------------------------------------------------------------
 */

int
main(int argc, char** argv)
{
    Tcl_Main(argc, argv, Tcl_AppInit);
    return 0;			/* Needed only to prevent compiler warning. */
}

/*
 *----------------------------------------------------------------------
 *
 * Tcl_AppInit --
 *
 *	This procedure performs application-specific initialization.
 *	Most applications, especially those that incorporate additional
 *	packages, will have their own version of this procedure.
 *
 * Results:
 *	Returns a standard Tcl completion code, and leaves an error
 *	message in interp->result if an error occurs.
 *
 * Side effects:
 *	Depends on the startup script.
 *
 *----------------------------------------------------------------------
 */

extern "C" int
Tcl_AppInit(Tcl_Interp* interp)
{
    if (Tcl_Init(interp) == TCL_ERROR) {
	return TCL_ERROR;
    }


    if (qmg_init(interp) != TCL_OK) {
      return TCL_ERROR;
    }

    /*
     * Call the init procedures for included packages.  Each call should
     * look like this:
     *
     * if (Mod_Init(interp) == TCL_ERROR) {
     *     return TCL_ERROR;
     * }
     *
     * where "Mod" is the name of the module.
     */

    /*
     * Call Tcl_CreateCommand for application-specific commands, if
     * they weren't already created by the init procedures called above.
     */

    /*
     * Specify a user-specific startup file to invoke if the application
     * is run interactively.  Typically the startup file is "~/.apprc"
     * where "app" is the name of the application.  If this line is deleted
     * then no user-specific startup file will be run under any conditions.
     */

    Tcl_SetVar(interp, "tcl_rcFileName", "~/.wishrc", TCL_GLOBAL_ONLY);
    return TCL_OK;
}