BloombergLP::bdldfp::DecimalImpUtil::add

Add the value of the specified rhs to the value of the specified lhs as described by IEEE-754 and return the result.

Synopsis

Declared in <bdldfp_decimalimputil.h>

static
DecimalImpUtil::ValueType32
add(
    ValueType32 lhs,
    ValueType32 rhs);

Description

* If either of lhs or rhs is signaling NaN, then store the value of the macro EDOM into errno and return a NaN. * Otherwise if either of lhs or rhs is NaN, return a NaN. * Otherwise if lhs and rhs are infinities of differing signs, store the value of the macro EDOM into errno and return a NaN. * Otherwise if lhs and rhs are infinities of the same sign then return infinity of that sign. * Otherwise if rhs is zero (positive or negative), return lhs. * Otherwise if the sum of lhs and rhs has an absolute value that is larger than the maximum value supported by the indicated result type then store the value of the macro ERANGE into errno and return infinity with the same sign as that result. * Otherwise return the sum of the number represented by lhs and the number represented by rhs. Return the sum of the specified decimal values.