furnace/extern/fftw/genfft/expr.mli

52 lines
1.7 KiB
OCaml

(*
* Copyright (c) 1997-1999 Massachusetts Institute of Technology
* Copyright (c) 2003, 2007-14 Matteo Frigo
* Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
*)
type transcendent = I | MULTI_A | MULTI_B | CONJ
type expr =
| Num of Number.number
| NaN of transcendent
| Plus of expr list
| Times of expr * expr
| CTimes of expr * expr
| CTimesJ of expr * expr
| Uminus of expr
| Load of Variable.variable
| Store of Variable.variable * expr
type assignment = Assign of Variable.variable * expr
val hash_float : float -> int
val hash : expr -> int
val to_string : expr -> string
val assignment_to_string : assignment -> string
val transcendent_to_float : transcendent -> float
val string_of_transcendent : transcendent -> string
val find_vars : expr -> Variable.variable list
val is_constant : expr -> bool
val is_known_constant : expr -> bool
val dump : (string -> unit) -> assignment list -> unit
val expr_to_constants : expr -> Number.number list
val unique_constants : Number.number list -> Number.number list