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/*++
Copyright (c) 2012 Microsoft Corporation
Module Name:
z3_algebraic.h
Abstract:
Additional APIs for handling Z3 algebraic numbers encoded as
Z3_ASTs
Author:
Leonardo de Moura (leonardo) 2012-12-07
Notes:
--*/
#pragma once
#ifdef __cplusplus
extern "C" {
#endif // __cplusplus
/** \defgroup capi C API */
/**@{*/
/** @name Algebraic Numbers */
/**@{*/
/**
\brief Return \c true if \c a can be used as value in the Z3 real algebraic
number package.
def_API('Z3_algebraic_is_value', BOOL, (_in(CONTEXT), _in(AST)))
*/
bool Z3_API Z3_algebraic_is_value(Z3_context c, Z3_ast a);
/**
\brief Return \c true if \c a is positive, and \c false otherwise.
\pre Z3_algebraic_is_value(c, a)
def_API('Z3_algebraic_is_pos', BOOL, (_in(CONTEXT), _in(AST)))
*/
bool Z3_API Z3_algebraic_is_pos(Z3_context c, Z3_ast a);
/**
\brief Return \c true if \c a is negative, and \c false otherwise.
\pre Z3_algebraic_is_value(c, a)
def_API('Z3_algebraic_is_neg', BOOL, (_in(CONTEXT), _in(AST)))
*/
bool Z3_API Z3_algebraic_is_neg(Z3_context c, Z3_ast a);
/**
\brief Return \c true if \c a is zero, and \c false otherwise.
\pre Z3_algebraic_is_value(c, a)
def_API('Z3_algebraic_is_zero', BOOL, (_in(CONTEXT), _in(AST)))
*/
bool Z3_API Z3_algebraic_is_zero(Z3_context c, Z3_ast a);
/**
\brief Return 1 if \c a is positive, 0 if \c a is zero, and -1 if \c a is negative.
\pre Z3_algebraic_is_value(c, a)
def_API('Z3_algebraic_sign', INT, (_in(CONTEXT), _in(AST)))
*/
int Z3_API Z3_algebraic_sign(Z3_context c, Z3_ast a);
/**
\brief Return the value a + b.
\pre Z3_algebraic_is_value(c, a)
\pre Z3_algebraic_is_value(c, b)
\post Z3_algebraic_is_value(c, result)
def_API('Z3_algebraic_add', AST, (_in(CONTEXT), _in(AST), _in(AST)))
*/
Z3_ast Z3_API Z3_algebraic_add(Z3_context c, Z3_ast a, Z3_ast b);
/**
\brief Return the value a - b.
\pre Z3_algebraic_is_value(c, a)
\pre Z3_algebraic_is_value(c, b)
\post Z3_algebraic_is_value(c, result)
def_API('Z3_algebraic_sub', AST, (_in(CONTEXT), _in(AST), _in(AST)))
*/
Z3_ast Z3_API Z3_algebraic_sub(Z3_context c, Z3_ast a, Z3_ast b);
/**
\brief Return the value a * b.
\pre Z3_algebraic_is_value(c, a)
\pre Z3_algebraic_is_value(c, b)
\post Z3_algebraic_is_value(c, result)
def_API('Z3_algebraic_mul', AST, (_in(CONTEXT), _in(AST), _in(AST)))
*/
Z3_ast Z3_API Z3_algebraic_mul(Z3_context c, Z3_ast a, Z3_ast b);
/**
\brief Return the value a / b.
\pre Z3_algebraic_is_value(c, a)
\pre Z3_algebraic_is_value(c, b)
\pre !Z3_algebraic_is_zero(c, b)
\post Z3_algebraic_is_value(c, result)
def_API('Z3_algebraic_div', AST, (_in(CONTEXT), _in(AST), _in(AST)))
*/
Z3_ast Z3_API Z3_algebraic_div(Z3_context c, Z3_ast a, Z3_ast b);
/**
\brief Return the a^(1/k)
\pre Z3_algebraic_is_value(c, a)
\pre k is even => !Z3_algebraic_is_neg(c, a)
\post Z3_algebraic_is_value(c, result)
def_API('Z3_algebraic_root', AST, (_in(CONTEXT), _in(AST), _in(UINT)))
*/
Z3_ast Z3_API Z3_algebraic_root(Z3_context c, Z3_ast a, unsigned k);
/**
\brief Return the a^k
\pre Z3_algebraic_is_value(c, a)
\post Z3_algebraic_is_value(c, result)
def_API('Z3_algebraic_power', AST, (_in(CONTEXT), _in(AST), _in(UINT)))
*/
Z3_ast Z3_API Z3_algebraic_power(Z3_context c, Z3_ast a, unsigned k);
/**
\brief Return \c true if a < b, and \c false otherwise.
\pre Z3_algebraic_is_value(c, a)
\pre Z3_algebraic_is_value(c, b)
def_API('Z3_algebraic_lt', BOOL, (_in(CONTEXT), _in(AST), _in(AST)))
*/
bool Z3_API Z3_algebraic_lt(Z3_context c, Z3_ast a, Z3_ast b);
/**
\brief Return \c true if a > b, and \c false otherwise.
\pre Z3_algebraic_is_value(c, a)
\pre Z3_algebraic_is_value(c, b)
def_API('Z3_algebraic_gt', BOOL, (_in(CONTEXT), _in(AST), _in(AST)))
*/
bool Z3_API Z3_algebraic_gt(Z3_context c, Z3_ast a, Z3_ast b);
/**
\brief Return \c true if a <= b, and \c false otherwise.
\pre Z3_algebraic_is_value(c, a)
\pre Z3_algebraic_is_value(c, b)
def_API('Z3_algebraic_le', BOOL, (_in(CONTEXT), _in(AST), _in(AST)))
*/
bool Z3_API Z3_algebraic_le(Z3_context c, Z3_ast a, Z3_ast b);
/**
\brief Return \c true if a >= b, and \c false otherwise.
\pre Z3_algebraic_is_value(c, a)
\pre Z3_algebraic_is_value(c, b)
def_API('Z3_algebraic_ge', BOOL, (_in(CONTEXT), _in(AST), _in(AST)))
*/
bool Z3_API Z3_algebraic_ge(Z3_context c, Z3_ast a, Z3_ast b);
/**
\brief Return \c true if a == b, and \c false otherwise.
\pre Z3_algebraic_is_value(c, a)
\pre Z3_algebraic_is_value(c, b)
def_API('Z3_algebraic_eq', BOOL, (_in(CONTEXT), _in(AST), _in(AST)))
*/
bool Z3_API Z3_algebraic_eq(Z3_context c, Z3_ast a, Z3_ast b);
/**
\brief Return \c true if a != b, and \c false otherwise.
\pre Z3_algebraic_is_value(c, a)
\pre Z3_algebraic_is_value(c, b)
def_API('Z3_algebraic_neq', BOOL, (_in(CONTEXT), _in(AST), _in(AST)))
*/
bool Z3_API Z3_algebraic_neq(Z3_context c, Z3_ast a, Z3_ast b);
/**
\brief Given a multivariate polynomial p(x_0, ..., x_{n-1}, x_n), returns the
roots of the univariate polynomial p(a[0], ..., a[n-1], x_n).
\pre p is a Z3 expression that contains only arithmetic terms and free variables.
\pre forall i in [0, n) Z3_algebraic_is_value(c, a[i])
\post forall r in result Z3_algebraic_is_value(c, result)
def_API('Z3_algebraic_roots', AST_VECTOR, (_in(CONTEXT), _in(AST), _in(UINT), _in_array(2, AST)))
*/
Z3_ast_vector Z3_API Z3_algebraic_roots(Z3_context c, Z3_ast p, unsigned n, Z3_ast a[]);
/**
\brief Given a multivariate polynomial p(x_0, ..., x_{n-1}), return the
sign of p(a[0], ..., a[n-1]).
\pre p is a Z3 expression that contains only arithmetic terms and free variables.
\pre forall i in [0, n) Z3_algebraic_is_value(c, a[i])
def_API('Z3_algebraic_eval', INT, (_in(CONTEXT), _in(AST), _in(UINT), _in_array(2, AST)))
*/
int Z3_API Z3_algebraic_eval(Z3_context c, Z3_ast p, unsigned n, Z3_ast a[]);
/**
\brief Return the coefficients of the defining polynomial.
\pre Z3_algebraic_is_value(c, a)
def_API('Z3_algebraic_get_poly', AST_VECTOR, (_in(CONTEXT), _in(AST)))
*/
Z3_ast_vector Z3_API Z3_algebraic_get_poly(Z3_context c, Z3_ast a);
/**
\brief Return which root of the polynomial the algebraic number represents.
\pre Z3_algebraic_is_value(c, a)
def_API('Z3_algebraic_get_i', UINT, (_in(CONTEXT), _in(AST)))
*/
unsigned Z3_API Z3_algebraic_get_i(Z3_context c, Z3_ast a);
/**@}*/
/**@}*/
#ifdef __cplusplus
}
#endif // __cplusplus
