# package bitwuzla

Library

Module

Module type

Parameter

Class

Class type

Rounding-mode

`type 'a operator = `

`| Rne : rm term operator`

(*Round to the nearest even number. If the two nearest floating-point numbers bracketing an unrepresentable infinitely precise result are equally near, the one with an even least significant digit will be delivered.

SMT-LIB:

*)`RNE`

roundNearestTiesToEven`| Rna : rm term operator`

(*Round to the nearest number away from zero. If the two nearest floating-point numbers bracketing an unrepresentable infinitely precise result are equally near, the one with larger magnitude will be selected.

SMT-LIB:

*)`RNA`

roundNearestTiesToAway`| Rtn : rm term operator`

(*Round towards negative infinity (-oo). The result shall be the format’s floating-point number (possibly -oo) closest to and no less than the infinitely precise result.

SMT-LIB:

*)`RTN`

roundTowardNegative`| Rtp : rm term operator`

(*Round towards positive infinity (+oo). The result shall be the format’s floating-point number (possibly +oo) closest to and no less than the infinitely precise result.

SMT-LIB:

*)`RTP`

roundTowardPositive`| Rtz : rm term operator`

(*Round towards zero. The result shall be the format’s floating-point number closest to and no greater in magnitude than the infinitely precise result.

SMT-LIB:

*)`RTZ`

roundTowardZero

Rounding mode for floating-point operations.

For some floating-point operations, infinitely precise results may not be representable in a given format. Hence, they are rounded modulo one of five rounding modes to a representable floating-point number.

The following rounding modes follow the SMT-LIB theory for floating-point arithmetic, which in turn is based on IEEE Standard 754. The rounding modes are specified in Sections 4.3.1 and 4.3.2 of the IEEE Standard 754.

`val term : 'a operator -> 'a`

`term op`

create a rounding-mode term of given kind.