shared_source/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	/* $Header$ */
2	/*
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	/* End of tclwinmtherr.c */