package bitwuzla-cxx

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type t =

| Rne
(*
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
(*
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
(*
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
(*
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
(*
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 to_string : t -> string

to_string t get string representation of this rounding mode.

returns
String representation of this rounding mode.