51 lines
1.1 KiB
C
51 lines
1.1 KiB
C
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/* void SetMathErrVector(pfn);
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*
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* ARGUMENT
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* void (*pfn)();
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*
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* DESCRIPTION
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* Sets the internal error handler to point to routine pfn. If pfn is
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* NULL on entry, then the default routine address is set. Note that the
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* function SetMathError is #define-d in gm.h, and results in call to
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* wherever the pointer pfnGMErrVector points to. The default handler
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* just sets the global variables wGMError and wGMErrFunNum if wGMError is
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* equal to GM_SUCCESS.
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*
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* SIDE EFFECTS
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* If a NULL pointer is passed, the routine sets the default Mathlib
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* pointer, and sets the errors wGMError and wGMErrFunNum. The requested
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* [NULL] pointer is NOT SET.
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*
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* RETURNS
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* None.
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*
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* POSSIBLE ERROR CODES
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*
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* None.
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*
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* AUTHOR
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* Andy Anderson 9/15/87 1400
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* Copyright (C) 1987-1990 Greenleaf Software Inc. All rights reserved.
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*
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* MODIFICATIONS
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*
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*
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*/
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#include <stdio.h>
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#include "gm.h"
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#include "gmsystem.h"
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void SetMathErrVector(pfn)
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void ( *pfn )( int , int );
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{
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_MacStart(GM_DSETERTN);
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if(!pfn) {
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pfnGMErrVector = GMDefErrHandler;
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}
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else
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pfnGMErrVector = pfn;
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_MacRetV;
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}
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