BloombergLP::bdldfp::DecimalUtil::round

Return the integral value nearest to the specified x. Round halfway cases away from zero, regardless of the current decimal floating point rounding mode.

Synopsis

Declared in <bdldfp_decimalutil.h>

static
Decimal32
round(Decimal32 x);

Description

Special value handling: * if x is quiet NaN, quiet NaN is returned. * If x is signaling NaN, quiet NaN is returned and the value of the macro EDOM is stored into errno. * if x is +/-infinity or +/-0, it is returned unmodified.

Examples: round(0.5) ==> 1.0; round(-0.5) ==> -1.0