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1 (*
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2 * Copyright (c) 1997-1999 Massachusetts Institute of Technology
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3 * Copyright (c) 2003, 2007-14 Matteo Frigo
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4 * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology
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5 *
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6 * This program is free software; you can redistribute it and/or modify
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7 * it under the terms of the GNU General Public License as published by
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8 * the Free Software Foundation; either version 2 of the License, or
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9 * (at your option) any later version.
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10 *
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11 * This program is distributed in the hope that it will be useful,
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12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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14 * GNU General Public License for more details.
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15 *
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16 * You should have received a copy of the GNU General Public License
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17 * along with this program; if not, write to the Free Software
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18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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19 *
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20 *)
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21
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22 type transcendent = I | MULTI_A | MULTI_B | CONJ
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23
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24 type expr =
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25 | Num of Number.number
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26 | NaN of transcendent
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27 | Plus of expr list
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28 | Times of expr * expr
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29 | CTimes of expr * expr
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30 | CTimesJ of expr * expr
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31 | Uminus of expr
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32 | Load of Variable.variable
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33 | Store of Variable.variable * expr
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34
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35 type assignment = Assign of Variable.variable * expr
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36
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37 val hash_float : float -> int
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38 val hash : expr -> int
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39 val to_string : expr -> string
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40 val assignment_to_string : assignment -> string
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41 val transcendent_to_float : transcendent -> float
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42 val string_of_transcendent : transcendent -> string
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43
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44 val find_vars : expr -> Variable.variable list
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45 val is_constant : expr -> bool
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46 val is_known_constant : expr -> bool
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47
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48 val dump : (string -> unit) -> assignment list -> unit
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49
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50 val expr_to_constants : expr -> Number.number list
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51 val unique_constants : Number.number list -> Number.number list
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