src/c_tcl_base_7_5_w_mods/tclwinmtherr.c

/* $Header$ */
/* 
 * tclWinMtherr.c --
 *
 *      This function provides a default implementation of the
 *      _matherr function for Borland C++.
 *
 * Copyright (c) 1995 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: tclwinmtherr.c,v 1.1.1.1 2001/06/13 04:49:20 dtashley Exp $
 */

#include "tclWinInt.h"
#include <math.h>


/*
 *----------------------------------------------------------------------
 *
 * _matherr --
 *
 *      This procedure is invoked by Borland C++ when certain
 *      errors occur in mathematical functions.  This procedure
 *      replaces the default implementation which generates pop-up
 *      warnings.
 *
 * Results:
 *      Returns 1 to indicate that we've handled the error
 *      locally.
 *
 * Side effects:
 *      Sets errno based on what's in xPtr.
 *
 *----------------------------------------------------------------------
 */

int
_matherr(xPtr)
    struct exception *xPtr;     /* Describes error that occurred. */
{
    if (!TclMathInProgress()) {
        return 0;
    }
    if ((xPtr->type == DOMAIN) || (xPtr->type == SING)) {
        errno = EDOM;
    } else {
        errno = ERANGE;
    }
    return 1;
}

/* End of tclwinmtherr.c */
1	dashley	64	/* $Header$ */
2	dashley	25	/*
3			* tclWinMtherr.c --
4			*
5			* This function provides a default implementation of the
6			* _matherr function for Borland C++.
7			*
8			* Copyright (c) 1995 Sun Microsystems, Inc.
9			*
10			* See the file "license.terms" for information on usage and redistribution
11			* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
12			*
13			* RCS: @(#) $Id: tclwinmtherr.c,v 1.1.1.1 2001/06/13 04:49:20 dtashley Exp $
14			*/
15
16			#include "tclWinInt.h"
17			#include <math.h>
18
19
20			/*
21			*----------------------------------------------------------------------
22			*
23			* _matherr --
24			*
25			* This procedure is invoked by Borland C++ when certain
26			* errors occur in mathematical functions. This procedure
27			* replaces the default implementation which generates pop-up
28			* warnings.
29			*
30			* Results:
31			* Returns 1 to indicate that we've handled the error
32			* locally.
33			*
34			* Side effects:
35			* Sets errno based on what's in xPtr.
36			*
37			*----------------------------------------------------------------------
38			*/
39
40			int
41			_matherr(xPtr)
42			struct exception xPtr; / Describes error that occurred. */
43			{
44			if (!TclMathInProgress()) {
45			return 0;
46			}
47			if ((xPtr->type == DOMAIN) \|\| (xPtr->type == SING)) {
48			errno = EDOM;
49			} else {
50			errno = ERANGE;
51			}
52			return 1;
53			}
54
55	dashley	67	/* End of tclwinmtherr.c */