module Coeff: sig .. end
APRON Coefficients (either scalars or intervals)
type
type union_5
APRON Coefficients (either scalars or intervals)
val s_of_mpq : Mpq.t -> t
val s_of_mpqf : Mpqf.t -> t
val s_of_int : int -> t
val s_of_frac : int -> int -> t
Create a scalar coefficient of type
Mpqf.t from resp.
- A multi-precision rational
Mpq.t
- A multi-precision rational
Mpqf.t
- an integer
- a fraction
x/y
val s_of_float : float -> t
Create an interval coefficient of type Float with the given value
val s_of_mpfr : Mpfr.t -> t
Create an interval coefficient of type Mpfr with the given value
val i_of_scalar : Scalar.t -> Scalar.t -> t
Build an interval from a lower and an upper bound
val i_of_mpq : Mpq.t -> Mpq.t -> t
val i_of_mpqf : Mpqf.t -> Mpqf.t -> t
val i_of_int : int -> int -> t
val i_of_frac : int -> int -> int -> int -> t
val i_of_float : float -> float -> t
val i_of_mpfr : Mpfr.t -> Mpfr.t -> t
Create an interval coefficient from resp. two
- multi-precision rationals
Mpq.t
- multi-precision rationals
Mpqf.t
- integers
- fractions
x/y and z/w
- machine floats
- Mpfr floats
val is_scalar : t -> bool
val is_interval : t -> bool
val cmp : t -> t -> int
Non Total Comparison:
- If the 2 coefficients are both scalars, corresp. to Scalar.cmp
- If the 2 coefficients are both intervals, corresp. to Interval.cmp
- otherwise, -3 if the first is a scalar, 3 otherwise
val equal : t -> t -> bool
Equality test
val is_zero : t -> bool
Is the coefficient equal to scalar 0 or interval 0,0 ?
val equal_int : t -> int -> bool
Is the coefficient equal to scalar b or interval b,b ?
val neg : t -> t
Negation
val reduce : t -> t
Convert interval to scalar if possible
val print : Format.formatter -> t -> unit
Printing