Return x * y + z, rounded as one ternary operation.

Synopsis

Declared in <bdldfp_decimalimputil.h>

static
DecimalImpUtil::ValueType32
fma(
    ValueType32 x,
    ValueType32 y,
    ValueType32 z);

Description

Special value handling: * If x or y are quiet NaN, quiet NaN is returned. * If any argument is signaling NaN, quiet NaN is returned and the value of the macro EDOM is stored into errno. * If x*y is an exact infinity and z is infinity with the opposite sign, quiet NaN is returned and the value of the macro EDOM is stored into errno. * If x is zero and y is infinite or if x is infinite and y is zero, and z is not a NaN, then quiet NaN is returned and the value of the macro EDOM is stored into errno. * If x is zero and y is infinite or if x is infinite and y is zero, and z is NaN, then quiet NaN is returned.

Return Value

x * y + z, rounded as one ternary operation

Parameters

Name

Description

x

first multiplicand

y

second multiplicand

z

addend

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