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func_decl Class Reference

Function declaration (aka function definition). It is the signature of interpreted and uninterpreted functions in Z3. The basic building block in Z3 is the function application. More...

#include <z3++.h>

+ Inheritance diagram for func_decl:

Public Member Functions

 func_decl (context &c)
 
 func_decl (context &c, Z3_func_decl n)
 
 operator Z3_func_decl () const
 
unsigned id () const
 retrieve unique identifier for func_decl.
 
unsigned arity () const
 
sort domain (unsigned i) const
 
sort range () const
 
symbol name () const
 
Z3_decl_kind decl_kind () const
 
unsigned num_parameters () const
 
func_decl transitive_closure (func_decl const &)
 
bool is_const () const
 
expr operator() () const
 
expr operator() (unsigned n, expr const *args) const
 
expr operator() (expr_vector const &v) const
 
expr operator() (expr const &a) const
 
expr operator() (int a) const
 
expr operator() (expr const &a1, expr const &a2) const
 
expr operator() (expr const &a1, int a2) const
 
expr operator() (int a1, expr const &a2) const
 
expr operator() (expr const &a1, expr const &a2, expr const &a3) const
 
expr operator() (expr const &a1, expr const &a2, expr const &a3, expr const &a4) const
 
expr operator() (expr const &a1, expr const &a2, expr const &a3, expr const &a4, expr const &a5) const
 
func_decl_vector accessors ()
 
- Public Member Functions inherited from ast
 ast (context &c)
 
 ast (context &c, Z3_ast n)
 
 ast (ast const &s)
 
 ~ast () override
 
 operator Z3_ast () const
 
 operator bool () const
 
astoperator= (ast const &s)
 
Z3_ast_kind kind () const
 
unsigned hash () const
 
std::string to_string () const
 
- Public Member Functions inherited from object
 object (context &c)
 
virtual ~object ()=default
 
contextctx () const
 
Z3_error_code check_error () const
 

Additional Inherited Members

- Protected Attributes inherited from ast
Z3_ast m_ast
 
- Protected Attributes inherited from object
contextm_ctx
 

Detailed Description

Function declaration (aka function definition). It is the signature of interpreted and uninterpreted functions in Z3. The basic building block in Z3 is the function application.

Definition at line 777 of file z3++.h.

Constructor & Destructor Documentation

◆ func_decl() [1/2]

func_decl ( context & c)
inline

Definition at line 779 of file z3++.h.

779:ast(c) {}
ast(context &c)
Definition z3++.h:572

Referenced by func_decl::transitive_closure().

◆ func_decl() [2/2]

func_decl ( context & c,
Z3_func_decl n )
inline

Definition at line 780 of file z3++.h.

780:ast(c, reinterpret_cast<Z3_ast>(n)) {}

Member Function Documentation

◆ accessors()

func_decl_vector accessors ( )
inline

Definition at line 4252 of file z3++.h.

4252 {
4253 sort s = range();
4254 assert(s.is_datatype());
4255 unsigned n = Z3_get_datatype_sort_num_constructors(ctx(), s);
4256 unsigned idx = 0;
4257 for (; idx < n; ++idx) {
4259 if (id() == f.id())
4260 break;
4261 }
4262 assert(idx < n);
4263 n = arity();
4264 func_decl_vector as(ctx());
4265 for (unsigned i = 0; i < n; ++i)
4266 as.push_back(func_decl(ctx(), Z3_get_datatype_sort_constructor_accessor(ctx(), s, idx, i)));
4267 return as;
4268 }
sort range() const
Definition z3++.h:790
func_decl(context &c)
Definition z3++.h:779
unsigned arity() const
Definition z3++.h:788
context & ctx() const
Definition z3++.h:491
unsigned Z3_API Z3_get_datatype_sort_num_constructors(Z3_context c, Z3_sort t)
Return number of constructors for datatype.
Z3_func_decl Z3_API Z3_get_datatype_sort_constructor(Z3_context c, Z3_sort t, unsigned idx)
Return idx'th constructor.
Z3_func_decl Z3_API Z3_get_datatype_sort_constructor_accessor(Z3_context c, Z3_sort t, unsigned idx_c, unsigned idx_a)
Return idx_a'th accessor for the idx_c'th constructor.
ast_vector_tpl< func_decl > func_decl_vector
Definition z3++.h:78

◆ arity()

unsigned arity ( ) const
inline

Definition at line 788 of file z3++.h.

788{ return Z3_get_arity(ctx(), *this); }
unsigned Z3_API Z3_get_arity(Z3_context c, Z3_func_decl d)
Alias for Z3_get_domain_size.

Referenced by func_decl::accessors(), fixedpoint::add_fact(), func_decl::domain(), and func_decl::is_const().

◆ decl_kind()

Z3_decl_kind decl_kind ( ) const
inline

Definition at line 792 of file z3++.h.

792{ return Z3_get_decl_kind(ctx(), *this); }
Z3_decl_kind Z3_API Z3_get_decl_kind(Z3_context c, Z3_func_decl d)
Return declaration kind corresponding to declaration.

Referenced by expr::is_and(), expr::is_distinct(), expr::is_eq(), expr::is_false(), expr::is_implies(), expr::is_ite(), expr::is_not(), expr::is_or(), expr::is_true(), and expr::is_xor().

◆ domain()

sort domain ( unsigned i) const
inline

Definition at line 789 of file z3++.h.

789{ assert(i < arity()); Z3_sort r = Z3_get_domain(ctx(), *this, i); check_error(); return sort(ctx(), r); }
Z3_error_code check_error() const
Definition z3++.h:492
Z3_sort Z3_API Z3_get_domain(Z3_context c, Z3_func_decl d, unsigned i)
Return the sort of the i-th parameter of the given function declaration.

Referenced by FuncDeclRef::__call__(), func_decl::operator()(), func_decl::operator()(), and func_decl::operator()().

◆ id()

unsigned id ( ) const
inline

retrieve unique identifier for func_decl.

Definition at line 786 of file z3++.h.

786{ unsigned r = Z3_get_func_decl_id(ctx(), *this); check_error(); return r; }
unsigned Z3_API Z3_get_func_decl_id(Z3_context c, Z3_func_decl f)
Return a unique identifier for f.

Referenced by func_decl::accessors().

◆ is_const()

bool is_const ( ) const
inline

Definition at line 800 of file z3++.h.

800{ return arity() == 0; }

◆ name()

symbol name ( ) const
inline

Definition at line 791 of file z3++.h.

791{ Z3_symbol s = Z3_get_decl_name(ctx(), *this); check_error(); return symbol(ctx(), s); }
Z3_symbol Z3_API Z3_get_decl_name(Z3_context c, Z3_func_decl d)
Return the constant declaration name as a symbol.

Referenced by Datatype::__deepcopy__(), and Datatype::__repr__().

◆ num_parameters()

unsigned num_parameters ( ) const
inline

Definition at line 793 of file z3++.h.

793{ return Z3_get_decl_num_parameters(ctx(), *this); }
unsigned Z3_API Z3_get_decl_num_parameters(Z3_context c, Z3_func_decl d)
Return the number of parameters associated with a declaration.

Referenced by parameter::parameter(), and parameter::parameter().

◆ operator Z3_func_decl()

operator Z3_func_decl ( ) const
inline

Definition at line 781 of file z3++.h.

781{ return reinterpret_cast<Z3_func_decl>(m_ast); }
Z3_ast m_ast
Definition z3++.h:570

◆ operator()() [1/11]

expr operator() ( ) const
inline

Definition at line 3892 of file z3++.h.

3892 {
3893 Z3_ast r = Z3_mk_app(ctx(), *this, 0, 0);
3894 ctx().check_error();
3895 return expr(ctx(), r);
3896 }
Z3_error_code check_error() const
Auxiliary method used to check for API usage errors.
Definition z3++.h:192
Z3_ast Z3_API Z3_mk_app(Z3_context c, Z3_func_decl d, unsigned num_args, Z3_ast const args[])
Create a constant or function application.

◆ operator()() [2/11]

expr operator() ( expr const & a) const
inline

Definition at line 3897 of file z3++.h.

3897 {
3898 check_context(*this, a);
3899 Z3_ast args[1] = { a };
3900 Z3_ast r = Z3_mk_app(ctx(), *this, 1, args);
3901 ctx().check_error();
3902 return expr(ctx(), r);
3903 }
friend void check_context(object const &a, object const &b)
Definition z3++.h:495

◆ operator()() [3/11]

expr operator() ( expr const & a1,
expr const & a2 ) const
inline

Definition at line 3910 of file z3++.h.

3910 {
3911 check_context(*this, a1); check_context(*this, a2);
3912 Z3_ast args[2] = { a1, a2 };
3913 Z3_ast r = Z3_mk_app(ctx(), *this, 2, args);
3914 ctx().check_error();
3915 return expr(ctx(), r);
3916 }

◆ operator()() [4/11]

expr operator() ( expr const & a1,
expr const & a2,
expr const & a3 ) const
inline

Definition at line 3931 of file z3++.h.

3931 {
3932 check_context(*this, a1); check_context(*this, a2); check_context(*this, a3);
3933 Z3_ast args[3] = { a1, a2, a3 };
3934 Z3_ast r = Z3_mk_app(ctx(), *this, 3, args);
3935 ctx().check_error();
3936 return expr(ctx(), r);
3937 }

◆ operator()() [5/11]

expr operator() ( expr const & a1,
expr const & a2,
expr const & a3,
expr const & a4 ) const
inline

Definition at line 3938 of file z3++.h.

3938 {
3939 check_context(*this, a1); check_context(*this, a2); check_context(*this, a3); check_context(*this, a4);
3940 Z3_ast args[4] = { a1, a2, a3, a4 };
3941 Z3_ast r = Z3_mk_app(ctx(), *this, 4, args);
3942 ctx().check_error();
3943 return expr(ctx(), r);
3944 }

◆ operator()() [6/11]

expr operator() ( expr const & a1,
expr const & a2,
expr const & a3,
expr const & a4,
expr const & a5 ) const
inline

Definition at line 3945 of file z3++.h.

3945 {
3946 check_context(*this, a1); check_context(*this, a2); check_context(*this, a3); check_context(*this, a4); check_context(*this, a5);
3947 Z3_ast args[5] = { a1, a2, a3, a4, a5 };
3948 Z3_ast r = Z3_mk_app(ctx(), *this, 5, args);
3949 ctx().check_error();
3950 return expr(ctx(), r);
3951 }

◆ operator()() [7/11]

expr operator() ( expr const & a1,
int a2 ) const
inline

Definition at line 3917 of file z3++.h.

3917 {
3918 check_context(*this, a1);
3919 Z3_ast args[2] = { a1, ctx().num_val(a2, domain(1)) };
3920 Z3_ast r = Z3_mk_app(ctx(), *this, 2, args);
3921 ctx().check_error();
3922 return expr(ctx(), r);
3923 }
expr num_val(int n, sort const &s)
Definition z3++.h:3869
sort domain(unsigned i) const
Definition z3++.h:789

◆ operator()() [8/11]

expr operator() ( expr_vector const & v) const
inline

Definition at line 3882 of file z3++.h.

3882 {
3883 array<Z3_ast> _args(args.size());
3884 for (unsigned i = 0; i < args.size(); i++) {
3885 check_context(*this, args[i]);
3886 _args[i] = args[i];
3887 }
3888 Z3_ast r = Z3_mk_app(ctx(), *this, args.size(), _args.ptr());
3889 check_error();
3890 return expr(ctx(), r);
3891 }

◆ operator()() [9/11]

expr operator() ( int a) const
inline

Definition at line 3904 of file z3++.h.

3904 {
3905 Z3_ast args[1] = { ctx().num_val(a, domain(0)) };
3906 Z3_ast r = Z3_mk_app(ctx(), *this, 1, args);
3907 ctx().check_error();
3908 return expr(ctx(), r);
3909 }

◆ operator()() [10/11]

expr operator() ( int a1,
expr const & a2 ) const
inline

Definition at line 3924 of file z3++.h.

3924 {
3925 check_context(*this, a2);
3926 Z3_ast args[2] = { ctx().num_val(a1, domain(0)), a2 };
3927 Z3_ast r = Z3_mk_app(ctx(), *this, 2, args);
3928 ctx().check_error();
3929 return expr(ctx(), r);
3930 }

◆ operator()() [11/11]

expr operator() ( unsigned n,
expr const * args ) const
inline

Definition at line 3871 of file z3++.h.

3871 {
3872 array<Z3_ast> _args(n);
3873 for (unsigned i = 0; i < n; i++) {
3874 check_context(*this, args[i]);
3875 _args[i] = args[i];
3876 }
3877 Z3_ast r = Z3_mk_app(ctx(), *this, n, _args.ptr());
3878 check_error();
3879 return expr(ctx(), r);
3880
3881 }

◆ range()

sort range ( ) const
inline

Definition at line 790 of file z3++.h.

790{ Z3_sort r = Z3_get_range(ctx(), *this); check_error(); return sort(ctx(), r); }
Z3_sort Z3_API Z3_get_range(Z3_context c, Z3_func_decl d)
Return the range of the given declaration.

Referenced by func_decl::accessors().

◆ transitive_closure()

func_decl transitive_closure ( func_decl const & )
inline

Definition at line 796 of file z3++.h.

796 {
797 Z3_func_decl tc = Z3_mk_transitive_closure(ctx(), *this); check_error(); return func_decl(ctx(), tc);
798 }
Z3_func_decl Z3_API Z3_mk_transitive_closure(Z3_context c, Z3_func_decl f)
create transitive closure of binary relation.