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working on api for algebraic numbers

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2012-12-07 19:06:48 -08:00
parent 4e2a9e7caf
commit 189fc46b6d
1 changed files with 60 additions and 10 deletions
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70
src/api/api_algebraic.cpp
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@ -210,8 +210,19 @@ extern "C" {
RETURN_Z3(0);
}
}
// TODO
return 0;
algebraic_numbers::manager & _am = am(c);
scoped_anum _r(_am);
if (is_rational(c, a)) {
scoped_anum av(_am);
_am.set(av, get_rational(c, a).to_mpq());
_am.root(av, k, _r);
}
else {
algebraic_numbers::anum const & av = get_irrational(c, a);
_am.root(av, k, _r);
}
expr * r = au(c).mk_numeral(_r, false);
RETURN_Z3(of_ast(r));
Z3_CATCH_RETURN(0);
}
@ -220,20 +231,61 @@ extern "C" {
LOG_Z3_algebraic_power(c, a, k);
RESET_ERROR_CODE();
CHECK_IS_ALGEBRAIC_X(a, 0);
// TODO
return 0;
algebraic_numbers::manager & _am = am(c);
scoped_anum _r(_am);
if (is_rational(c, a)) {
scoped_anum av(_am);
_am.set(av, get_rational(c, a).to_mpq());
_am.power(av, k, _r);
}
else {
algebraic_numbers::anum const & av = get_irrational(c, a);
_am.power(av, k, _r);
}
expr * r = au(c).mk_numeral(_r, false);
RETURN_Z3(of_ast(r));
Z3_CATCH_RETURN(0);
}
#define BIN_PRED(RAT_PRED, IRAT_PRED) \
algebraic_numbers::manager & _am = am(c); \
bool r; \
if (is_rational(c, a)) { \
rational av = get_rational(c, a); \
if (is_rational(c, b)) { \
rational bv = get_rational(c, b); \
r = av RAT_PRED bv; \
} \
else { \
algebraic_numbers::anum const & bv = get_irrational(c, b); \
scoped_anum _av(_am); \
_am.set(_av, av.to_mpq()); \
r = _am.IRAT_PRED(_av, bv); \
} \
} \
else { \
algebraic_numbers::anum const & av = get_irrational(c, a); \
if (is_rational(c, b)) { \
rational bv = get_rational(c, b); \
scoped_anum _bv(_am); \
_am.set(_bv, bv.to_mpq()); \
r = _am.IRAT_PRED(av, _bv); \
} \
else { \
algebraic_numbers::anum const & bv = get_irrational(c, b); \
r = _am.IRAT_PRED(av, bv); \
} \
} \
return r ? Z3_TRUE : Z3_FALSE;
Z3_bool Z3_API Z3_algebraic_lt(Z3_context c, Z3_ast a, Z3_ast b) {
Z3_TRY;
LOG_Z3_algebraic_lt(c, a, b);
RESET_ERROR_CODE();
CHECK_IS_ALGEBRAIC(a, 0);
CHECK_IS_ALGEBRAIC(b, 0);
// TODO
return Z3_FALSE;
BIN_PRED(<,lt);
Z3_CATCH_RETURN(Z3_FALSE);
}
@ -255,9 +307,7 @@ extern "C" {
RESET_ERROR_CODE();
CHECK_IS_ALGEBRAIC(a, 0);
CHECK_IS_ALGEBRAIC(b, 0);
// TODO
return Z3_FALSE;
BIN_PRED(==,eq);
Z3_CATCH_RETURN(0);
}