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:
*)RNEroundNearestTiesToEven| 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:
*)RNAroundNearestTiesToAway| 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:
*)RTNroundTowardNegative| 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:
*)RTProundTowardPositive| 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:
*)RTZroundTowardZero
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 -> 'aterm op create a rounding-mode term of given kind.