1 #if defined (HAVE_CONFIG_H)
2 # include "config.h"
3 #endif
4
5 #include <cstdlib>
6 #include <ostream>
7 #include <string>
8
9 #include <octave/lo-mappers.h>
10 #include <octave/lo-utils.h>
11 #include <octave/mx-base.h>
12 #include <octave/str-vec.h>
13
14 #include <octave/defun-dld.h>
15 #include <octave/interpreter.h>
16 #include <octave/ops.h>
17 #include <octave/ov-base.h>
18 #include <octave/ov-scalar.h>
19 #include <octave/ov-typeinfo.h>
20 #include <octave/ov.h>
21 #include <octave/ovl.h>
22 #include <octave/pager.h>
23 #include <octave/pr-output.h>
24 #include <octave/variables.h>
25
26
27 // Integer values.
28
29 class
30 octave_integer : public octave_base_value
31 {
32 public:
33
octave_integer(void)34 octave_integer (void)
35 : octave_base_value (), scalar (0) { }
36
octave_integer(int i)37 octave_integer (int i)
38 : octave_base_value (), scalar (i) { }
39
octave_integer(const octave_integer & s)40 octave_integer (const octave_integer& s)
41 : octave_base_value (), scalar (s.scalar) { }
42
43 ~octave_integer (void) = default;
44
clone(void)45 octave_base_value * clone (void) { return new octave_integer (*this); }
46
47 #if 0
48 void *operator new (std::size_t size);
49 void operator delete (void *p, std::size_t size);
50 #endif
51
index_vector(bool) const52 idx_vector index_vector (bool) const { return idx_vector ((double) scalar); }
53
rows(void) const54 int rows (void) const { return 1; }
columns(void) const55 int columns (void) const { return 1; }
56
is_constant(void) const57 bool is_constant (void) const { return true; }
58
is_defined(void) const59 bool is_defined (void) const { return true; }
is_real_scalar(void) const60 bool is_real_scalar (void) const { return true; }
61
all(void) const62 octave_value all (void) const { return (double) (scalar != 0); }
any(void) const63 octave_value any (void) const { return (double) (scalar != 0); }
64
is_real_type(void) const65 bool is_real_type (void) const { return true; }
is_scalar_type(void) const66 bool is_scalar_type (void) const { return true; }
isnumeric(void) const67 bool isnumeric (void) const { return true; }
68
valid_as_scalar_index(void) const69 bool valid_as_scalar_index (void) const
70 { return scalar == 1; }
71
valid_as_zero_index(void) const72 bool valid_as_zero_index (void) const
73 { return scalar == 0; }
74
is_true(void) const75 bool is_true (void) const { return (scalar != 0); }
76
double_value(bool=false) const77 double double_value (bool = false) const { return (double) scalar; }
78
integer_value(bool=false) const79 int integer_value (bool = false) const { return scalar; }
80
matrix_value(bool=false) const81 Matrix matrix_value (bool = false) const { return Matrix (1, 1, scalar); }
82
complex_value(bool=false) const83 Complex complex_value (bool = false) const { return scalar; }
84
complex_matrix_value(bool=false) const85 ComplexMatrix complex_matrix_value (bool = false) const
86 { return ComplexMatrix (1, 1, Complex (scalar)); }
87
gnot(void) const88 octave_value gnot (void) const { return octave_value ((double) ! scalar); }
89
uminus(void) const90 octave_value uminus (void) const { return new octave_integer (- scalar); }
91
transpose(void) const92 octave_value transpose (void) const { return new octave_integer (scalar); }
93
hermitian(void) const94 octave_value hermitian (void) const { return new octave_integer (scalar); }
95
increment(void)96 void increment (void) { ++scalar; }
97
decrement(void)98 void decrement (void) { --scalar; }
99
100 void print (std::ostream& os, bool pr_as_read_syntax = false);
101
102 private:
103
104 int scalar;
105
106
107 DECLARE_OV_TYPEID_FUNCTIONS_AND_DATA
108 };
109
110 void
print(std::ostream & os,bool pr_as_read_syntax)111 octave_integer::print (std::ostream& os, bool pr_as_read_syntax)
112 {
113 os << scalar;
114 newline (os);
115 }
116
117 #if defined (DEFUNOP_OP)
118 #undef DEFUNOP_OP
119 #endif
120
121 #define DEFUNOP_OP(name, t, op) \
122 static octave_value \
123 CONCAT2(oct_unop_, name) (const octave_base_value& a) \
124 { \
125 const octave_ ## t& v = dynamic_cast<const octave_ ## t&> (a); \
126 return octave_value (new octave_integer (op v.t ## _value ())); \
127 }
128
129 DEFUNOP_OP (gnot, integer, !)
130 DEFUNOP_OP (uminus, integer, -)
131 DEFUNOP_OP (transpose, integer, /* no-op */)
132 DEFUNOP_OP (hermitian, integer, /* no-op */)
133
DEFNCUNOP_METHOD(incr,integer,increment)134 DEFNCUNOP_METHOD (incr, integer, increment)
135 DEFNCUNOP_METHOD (decr, integer, decrement)
136
137 #if defined (DEFBINOP_OP)
138 #undef DEFBINOP_OP
139 #endif
140
141 #define DEFBINOP_OP(name, t1, t2, op) \
142 static octave_value \
143 CONCAT2(oct_binop_, name) (const octave_base_value& a1, \
144 const octave_base_value& a2) \
145 { \
146 const octave_ ## t1& v1 = dynamic_cast<const octave_ ## t1&> (a1); \
147 const octave_ ## t2& v2 = dynamic_cast<const octave_ ## t2&> (a2); \
148 return octave_value \
149 (new octave_integer (v1.t1 ## _value () op v2.t2 ## _value ())); \
150 }
151
152 // integer by integer ops.
153
154 DEFBINOP_OP (add, integer, integer, +)
155 DEFBINOP_OP (sub, integer, integer, -)
156 DEFBINOP_OP (mul, integer, integer, *)
157
158 DEFBINOP (div, integer, integer)
159 {
160 const octave_integer& v1 = dynamic_cast<const octave_integer&> (a1);
161 const octave_integer& v2 = dynamic_cast<const octave_integer&> (a2);
162
163 return new octave_integer (v1.integer_value () / v2.integer_value ());
164 }
165
166
DEFBINOP(i_s_div,integer,scalar)167 DEFBINOP (i_s_div, integer, scalar)
168 {
169 const octave_integer& v1 = dynamic_cast<const octave_integer&> (a1);
170 const octave_scalar& v2 = dynamic_cast<const octave_scalar&> (a2);
171
172 return new octave_scalar (v1.double_value () / v2.double_value ());
173 }
174
DEFBINOP(ldiv,integer,integer)175 DEFBINOP (ldiv, integer, integer)
176 {
177 const octave_integer& v1 = dynamic_cast<const octave_integer&> (a1);
178 const octave_integer& v2 = dynamic_cast<const octave_integer&> (a2);
179
180 return new octave_integer (v2.integer_value () / v1.integer_value ());
181 }
182
183 DEFBINOP_OP (lt, integer, integer, <)
184 DEFBINOP_OP (le, integer, integer, <=)
185 DEFBINOP_OP (eq, integer, integer, ==)
186 DEFBINOP_OP (ge, integer, integer, >=)
187 DEFBINOP_OP (gt, integer, integer, >)
188 DEFBINOP_OP (ne, integer, integer, !=)
189
190 DEFBINOP_OP (el_mul, integer, integer, !=)
191
DEFBINOP(el_div,integer,integer)192 DEFBINOP (el_div, integer, integer)
193 {
194 const octave_integer& v1 = dynamic_cast<const octave_integer&> (a1);
195 const octave_integer& v2 = dynamic_cast<const octave_integer&> (a2);
196
197 return new octave_integer (v1.integer_value () / v2.integer_value ());
198 }
199
DEFBINOP(el_ldiv,integer,integer)200 DEFBINOP (el_ldiv, integer, integer)
201 {
202 const octave_integer& v1 = dynamic_cast<const octave_integer&> (a1);
203 const octave_integer& v2 = dynamic_cast<const octave_integer&> (a2);
204
205 return new octave_integer (v2.integer_value () / v1.integer_value ());
206 }
207
208 DEFBINOP_OP (el_and, integer, integer, &&)
209 DEFBINOP_OP (el_or, integer, integer, ||)
210
211 DEFMETHOD_DLD (make_int, interp, args, ,
212 "int_val = make_int (val)\n\
213 \n\
214 Creates an integer variable from VAL.")
215 {
216 static bool type_loaded = false;
217
218 if (! type_loaded)
219 {
220 octave_integer::register_type ();
221 interp.mlock ();
222
223 octave_stdout << "installing integer type at type-id = "
224 << octave_integer::static_type_id () << "\n";
225
226 octave::type_info& ti = interp.get_type_info ();
227
228 INSTALL_UNOP_TI (ti, op_not, octave_integer, gnot);
229 INSTALL_UNOP_TI (ti, op_uminus, octave_integer, uminus);
230 INSTALL_UNOP_TI (ti, op_transpose, octave_integer, transpose);
231 INSTALL_UNOP_TI (ti, op_hermitian, octave_integer, hermitian);
232
233 INSTALL_NCUNOP_TI (ti, op_incr, octave_integer, incr);
234 INSTALL_NCUNOP_TI (ti, op_decr, octave_integer, decr);
235
236 INSTALL_BINOP_TI (ti, op_add, octave_integer, octave_integer, add);
237 INSTALL_BINOP_TI (ti, op_sub, octave_integer, octave_integer, sub);
238 INSTALL_BINOP_TI (ti, op_mul, octave_integer, octave_integer, mul);
239 INSTALL_BINOP_TI (ti, op_div, octave_integer, octave_integer, div);
240 INSTALL_BINOP_TI (ti, op_ldiv, octave_integer, octave_integer, ldiv);
241 INSTALL_BINOP_TI (ti, op_lt, octave_integer, octave_integer, lt);
242 INSTALL_BINOP_TI (ti, op_le, octave_integer, octave_integer, le);
243 INSTALL_BINOP_TI (ti, op_eq, octave_integer, octave_integer, eq);
244 INSTALL_BINOP_TI (ti, op_ge, octave_integer, octave_integer, ge);
245 INSTALL_BINOP_TI (ti, op_gt, octave_integer, octave_integer, gt);
246 INSTALL_BINOP_TI (ti, op_ne, octave_integer, octave_integer, ne);
247 INSTALL_BINOP_TI (ti, op_el_mul, octave_integer, octave_integer, el_mul);
248 INSTALL_BINOP_TI (ti, op_el_div, octave_integer, octave_integer, el_div);
249 INSTALL_BINOP_TI (ti, op_el_ldiv, octave_integer, octave_integer, el_ldiv);
250 INSTALL_BINOP_TI (ti, op_el_and, octave_integer, octave_integer, el_and);
251 INSTALL_BINOP_TI (ti, op_el_or, octave_integer, octave_integer, el_or);
252
253 INSTALL_BINOP_TI (ti, op_div, octave_integer, octave_scalar, i_s_div);
254
255 type_loaded = true;
256 }
257
258 octave_value retval;
259
260 if (args.length () == 1)
261 {
262 double d = args(0).double_value ();
263
264 retval = octave_value (new octave_integer (octave::math::nint (d)));
265 }
266 else
267 print_usage ();
268
269 return retval;
270 }
271
272 DEFUN_DLD (doit, args, ,
273 "doit (I)")
274 {
275 octave_value_list retval;
276
277 if (args.length () != 1)
278 {
279 print_usage ();
280 return retval;
281 }
282
283 if (args(0).type_id () == octave_integer::static_type_id ())
284 {
285 // At this point, we know we have a handle for an octave_integer
286 // object, so we can peek at the representation and extract the
287 // data.
288
289 const octave_base_value& rep = args(0).get_rep ();
290
291 int my_value = ((const octave_integer&) rep) . integer_value ();
292
293 message ("doit", "your lucky number is: %d", my_value);
294 }
295 else
296 err_wrong_type_arg ("doit", args(0));
297
298 return retval;
299 }
300
301
302 DEFINE_OV_TYPEID_FUNCTIONS_AND_DATA (octave_integer, "integer", "integer");
303