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Add arith_decls for underspecified operators

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Signed-off-by: Leonardo de Moura <leonardo@microsoft.com>
This commit is contained in:
Leonardo de Moura 2012-12-26 11:35:00 -08:00
parent 2a286541e0
commit 53df82c314
3 changed files with 94 additions and 105 deletions
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53
src/ast/arith_decl_plugin.cpp
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@ -206,6 +206,21 @@ void arith_decl_plugin::set_manager(ast_manager * m, family_id id) {
func_decl * e_decl = m->mk_const_decl(symbol("euler"), r, func_decl_info(id, OP_E));
m_e = m->mk_const(e_decl);
m->inc_ref(m_e);
func_decl * z_pw_z_int = m->mk_const_decl(symbol("0^0-int"), i, func_decl_info(id, OP_0_PW_0_INT));
m_0_pw_0_int = m->mk_const(z_pw_z_int);
m->inc_ref(m_0_pw_0_int);
func_decl * z_pw_z_real = m->mk_const_decl(symbol("0^0-real"), r, func_decl_info(id, OP_0_PW_0_REAL));
m_0_pw_0_real = m->mk_const(z_pw_z_real);
m->inc_ref(m_0_pw_0_real);
MK_OP(m_neg_root_decl, "neg-root", OP_NEG_ROOT, r);
MK_UNARY(m_div_0_decl, "/0", OP_DIV_0, r);
MK_UNARY(m_idiv_0_decl, "div0", OP_IDIV_0, i);
MK_UNARY(m_mod_0_decl, "mod0", OP_MOD_0, i);
MK_UNARY(m_u_asin_decl, "asin-u", OP_U_ASIN, r);
MK_UNARY(m_u_acos_decl, "acos-u", OP_U_ACOS, r);
}
arith_decl_plugin::arith_decl_plugin():
@ -253,7 +268,15 @@ arith_decl_plugin::arith_decl_plugin():
m_acosh_decl(0),
m_atanh_decl(0),
m_pi(0),
m_e(0) {
m_e(0),
m_0_pw_0_int(0),
m_0_pw_0_real(0),
m_neg_root_decl(0),
m_div_0_decl(0),
m_idiv_0_decl(0),
m_mod_0_decl(0),
m_u_asin_decl(0),
m_u_acos_decl(0) {
}
arith_decl_plugin::~arith_decl_plugin() {
@ -303,6 +326,14 @@ void arith_decl_plugin::finalize() {
DEC_REF(m_atanh_decl);
DEC_REF(m_pi);
DEC_REF(m_e);
DEC_REF(m_0_pw_0_int);
DEC_REF(m_0_pw_0_real);
DEC_REF(m_neg_root_decl);
DEC_REF(m_div_0_decl);
DEC_REF(m_idiv_0_decl);
DEC_REF(m_mod_0_decl);
DEC_REF(m_u_asin_decl);
DEC_REF(m_u_acos_decl);
m_manager->dec_array_ref(m_small_ints.size(), m_small_ints.c_ptr());
m_manager->dec_array_ref(m_small_reals.size(), m_small_reals.c_ptr());
}
@ -347,6 +378,14 @@ inline func_decl * arith_decl_plugin::mk_func_decl(decl_kind k, bool is_real) {
case OP_ATANH: return m_atanh_decl;
case OP_PI: return m_pi->get_decl();
case OP_E: return m_e->get_decl();
case OP_0_PW_0_INT: return m_0_pw_0_int->get_decl();
case OP_0_PW_0_REAL: return m_0_pw_0_real->get_decl();
case OP_NEG_ROOT: return m_neg_root_decl;
case OP_DIV_0: return m_div_0_decl;
case OP_IDIV_0: return m_idiv_0_decl;
case OP_MOD_0: return m_mod_0_decl;
case OP_U_ASIN: return m_u_asin_decl;
case OP_U_ACOS: return m_u_acos_decl;
default: return 0;
}
}
@ -426,12 +465,20 @@ static bool has_real_arg(ast_manager * m, unsigned num_args, expr * const * args
return true;
return false;
}
static bool is_const_op(decl_kind k) {
return
k == OP_PI ||
k == OP_E ||
k == OP_0_PW_0_INT ||
k == OP_0_PW_0_REAL;
}
func_decl * arith_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters, parameter const * parameters,
unsigned arity, sort * const * domain, sort * range) {
if (k == OP_NUM)
return mk_num_decl(num_parameters, parameters, arity);
if (arity == 0 && k != OP_PI && k != OP_E) {
if (arity == 0 && !is_const_op(k)) {
m_manager->raise_exception("no arguments supplied to arithmetical operator");
return 0;
}
@ -448,7 +495,7 @@ func_decl * arith_decl_plugin::mk_func_decl(decl_kind k, unsigned num_parameters
unsigned num_args, expr * const * args, sort * range) {
if (k == OP_NUM)
return mk_num_decl(num_parameters, parameters, num_args);
if (num_args == 0 && k != OP_PI && k != OP_E) {
if (num_args == 0 && !is_const_op(k)) {
m_manager->raise_exception("no arguments supplied to arithmetical operator");
return 0;
}