1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
|
------------------------------------------------------------------------------
-- --
-- GNAT RUN-TIME COMPONENTS --
-- --
-- A D A . W I D E _ T E X T _ I O . C O M P L E X _ A U X --
-- --
-- B o d y --
-- --
-- Copyright (C) 1992-2005 Free Software Foundation, Inc. --
-- --
-- GNAT is free software; you can redistribute it and/or modify it under --
-- terms of the GNU General Public License as published by the Free Soft- --
-- ware Foundation; either version 2, or (at your option) any later ver- --
-- sion. GNAT is distributed in the hope that it will be useful, but WITH- --
-- OUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY --
-- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License --
-- for more details. You should have received a copy of the GNU General --
-- Public License distributed with GNAT; see file COPYING. If not, write --
-- to the Free Software Foundation, 59 Temple Place - Suite 330, Boston, --
-- MA 02111-1307, USA. --
-- --
-- As a special exception, if other files instantiate generics from this --
-- unit, or you link this unit with other files to produce an executable, --
-- this unit does not by itself cause the resulting executable to be --
-- covered by the GNU General Public License. This exception does not --
-- however invalidate any other reasons why the executable file might be --
-- covered by the GNU Public License. --
-- --
-- GNAT was originally developed by the GNAT team at New York University. --
-- Extensive contributions were provided by Ada Core Technologies Inc. --
-- --
------------------------------------------------------------------------------
with Ada.Wide_Text_IO.Generic_Aux; use Ada.Wide_Text_IO.Generic_Aux;
with Ada.Wide_Text_IO.Float_Aux;
with System.Img_Real; use System.Img_Real;
package body Ada.Wide_Text_IO.Complex_Aux is
package Aux renames Ada.Wide_Text_IO.Float_Aux;
---------
-- Get --
---------
procedure Get
(File : File_Type;
ItemR : out Long_Long_Float;
ItemI : out Long_Long_Float;
Width : Field)
is
Buf : String (1 .. Field'Last);
Stop : Integer := 0;
Ptr : aliased Integer;
Paren : Boolean := False;
begin
-- General note for following code, exceptions from the calls
-- to Get for components of the complex value are propagated.
if Width /= 0 then
Load_Width (File, Width, Buf, Stop);
Gets (Buf (1 .. Stop), ItemR, ItemI, Ptr);
for J in Ptr + 1 .. Stop loop
if not Is_Blank (Buf (J)) then
raise Data_Error;
end if;
end loop;
-- Case of width = 0
else
Load_Skip (File);
Ptr := 0;
Load (File, Buf, Ptr, '(', Paren);
Aux.Get (File, ItemR, 0);
Load_Skip (File);
Load (File, Buf, Ptr, ',');
Aux.Get (File, ItemI, 0);
if Paren then
Load_Skip (File);
Load (File, Buf, Ptr, ')', Paren);
if not Paren then
raise Data_Error;
end if;
end if;
end if;
end Get;
----------
-- Gets --
----------
procedure Gets
(From : String;
ItemR : out Long_Long_Float;
ItemI : out Long_Long_Float;
Last : out Positive)
is
Paren : Boolean;
Pos : Integer;
begin
String_Skip (From, Pos);
if From (Pos) = '(' then
Pos := Pos + 1;
Paren := True;
else
Paren := False;
end if;
Aux.Gets (From (Pos .. From'Last), ItemR, Pos);
String_Skip (From (Pos + 1 .. From'Last), Pos);
if From (Pos) = ',' then
Pos := Pos + 1;
end if;
Aux.Gets (From (Pos .. From'Last), ItemI, Pos);
if Paren then
String_Skip (From (Pos + 1 .. From'Last), Pos);
if From (Pos) /= ')' then
raise Data_Error;
end if;
end if;
Last := Pos;
end Gets;
---------
-- Put --
---------
procedure Put
(File : File_Type;
ItemR : Long_Long_Float;
ItemI : Long_Long_Float;
Fore : Field;
Aft : Field;
Exp : Field)
is
begin
Put (File, '(');
Aux.Put (File, ItemR, Fore, Aft, Exp);
Put (File, ',');
Aux.Put (File, ItemI, Fore, Aft, Exp);
Put (File, ')');
end Put;
----------
-- Puts --
----------
procedure Puts
(To : out String;
ItemR : Long_Long_Float;
ItemI : Long_Long_Float;
Aft : Field;
Exp : Field)
is
I_String : String (1 .. 3 * Field'Last);
R_String : String (1 .. 3 * Field'Last);
Iptr : Natural;
Rptr : Natural;
begin
-- Both parts are initially converted with a Fore of 0
Rptr := 0;
Set_Image_Real (ItemR, R_String, Rptr, 0, Aft, Exp);
Iptr := 0;
Set_Image_Real (ItemI, I_String, Iptr, 0, Aft, Exp);
-- Check room for both parts plus parens plus comma (RM G.1.3(34))
if Rptr + Iptr + 3 > To'Length then
raise Layout_Error;
end if;
-- If there is room, layout result according to (RM G.1.3(31-33))
To (To'First) := '(';
To (To'First + 1 .. To'First + Rptr) := R_String (1 .. Rptr);
To (To'First + Rptr + 1) := ',';
To (To'Last) := ')';
To (To'Last - Iptr .. To'Last - 1) := I_String (1 .. Iptr);
for J in To'First + Rptr + 2 .. To'Last - Iptr - 1 loop
To (J) := ' ';
end loop;
end Puts;
end Ada.Wide_Text_IO.Complex_Aux;
|
