NoisyArithmetic.cpp File Reference

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Functions
	FENNEL_BEGIN_CPPFILE ("$Id: //open/dev/fennel/calculator/NoisyArithmetic.cpp#3 $")
static void	Raise (TExceptionCBData *pData, TProgramCounter pc, const char *pMsg) throw (CalcMessage)
	DO (char) DO(signed char) DO(unsigned char) DO(short) DO(unsigned short) DO(int) DO(unsigned int) DO(long int) DO(long unsigned int) DO(long long int) DO(long long unsigned int) DO(float) DO(double) DO(long double) inline void maybe_raise_fe_exception(TExceptionCBData *pExData
TProgramCounter pc	throw (CalcMessage)
template<typename TYPE>
OP_FN_PROLOG	na_add (TYPE &res, const TYPE &r, const TYPE &l)
template<typename TYPE>
OP_FN_PROLOG	na_sub (TYPE &res, const TYPE &r, const TYPE &l)
template<typename TYPE>
OP_FN_PROLOG	na_mul (TYPE &res, const TYPE &r, const TYPE &l)
template<typename TYPE>
OP_FN_PROLOG	na_div (TYPE &res, const TYPE &r, const TYPE &l)
template<typename TYPE>
OP_FN_PROLOG	na_neg (TYPE &res, const TYPE &r)

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Function Documentation

DO

(

char

)

FENNEL_BEGIN_CPPFILE

(

"$Id: //open/dev/fennel/calculator/NoisyArithmetic.cpp#3 $"

)

template<typename TYPE>

OP_FN_PROLOG na_add	(	TYPE &	res,
		const TYPE &	r,
		const TYPE &	l
	)

Definition at line 391 of file NoisyArithmetic.cpp.

{
    res = r + l;
}

template<typename TYPE>

OP_FN_PROLOG na_div	(	TYPE &	res,
		const TYPE &	r,
		const TYPE &	l
	)

Definition at line 409 of file NoisyArithmetic.cpp.

{
    res = r / l;
}

template<typename TYPE>

OP_FN_PROLOG na_mul	(	TYPE &	res,
		const TYPE &	r,
		const TYPE &	l
	)

Definition at line 403 of file NoisyArithmetic.cpp.

{
    res = r * l;
}

template<typename TYPE>

OP_FN_PROLOG na_neg	(	TYPE &	res,
		const TYPE &	r
	)

Definition at line 415 of file NoisyArithmetic.cpp.

{
    res = -r;
}

template<typename TYPE>

OP_FN_PROLOG na_sub	(	TYPE &	res,
		const TYPE &	r,
		const TYPE &	l
	)

Definition at line 397 of file NoisyArithmetic.cpp.

{
    res = r - l;
}

static void Raise	(	TExceptionCBData *	pData,
		TProgramCounter	pc,
		const char *	pMsg
	)			throw (CalcMessage) [static]

Definition at line 74 of file NoisyArithmetic.cpp.

Referenced by throw().

{
    if (pData) {
        assert(pData->fnCB);
        (pData->fnCB)(pMsg, pData->pData);
    }
    throw CalcMessage(pMsg, pc);
}

TProgramCounter pc throw

(

CalcMessage

)

Definition at line 349 of file NoisyArithmetic.cpp.

References Raise().

{
    int fe = ::fetestexcept(FE_ALL_EXCEPT);
    if (0) {
    } else if (fe & FE_DIVBYZERO) {
        Raise(pExData, pc, S_DIV0);
    } else if (fe & FE_UNDERFLOW) {
        Raise(pExData, pc, S_UNDR);
    } else if (fe & FE_OVERFLOW) {
        Raise(pExData, pc, S_OVER);
    } else if (fe & FE_INVALID) {
        Raise(pExData, pc, S_INVL);

    /* leave this last because it occurs in conjunction with other
        flags */
    } else if (fe & FE_INEXACT) {
/* disabling inexact. for <float> 200.0 + 0.3 == 200.300003 and S_INEX
 gets set., so is too pedestrian a case to raise an error for
        Raise(pExData, pc, S_INEX); */
        }
}

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