xref: /netbsd-src/external/lgpl3/gmp/dist/tests/cxx/t-iostream.cc (revision 479d8f7d843cc1b22d497efdf1f27a50ee8418d4)
1 /* Test stream formatted input and output on mp*_class
2 
3 Copyright 2011 Free Software Foundation, Inc.
4 
5 This file is part of the GNU MP Library test suite.
6 
7 The GNU MP Library test suite is free software; you can redistribute it
8 and/or modify it under the terms of the GNU General Public License as
9 published by the Free Software Foundation; either version 3 of the License,
10 or (at your option) any later version.
11 
12 The GNU MP Library test suite is distributed in the hope that it will be
13 useful, but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General
15 Public License for more details.
16 
17 You should have received a copy of the GNU General Public License along with
18 the GNU MP Library test suite.  If not, see http://www.gnu.org/licenses/.  */
19 
20 #include <sstream>
21 
22 #include "gmp.h"
23 #include "gmpxx.h"
24 #include "gmp-impl.h"
25 #include "tests.h"
26 
27 using namespace std;
28 
29 // The tests are extremely basic. These functions just forward to the
30 // ones tested in t-istream.cc and t-ostream.cc; we rely on those for
31 // advanced tests and only check the syntax here.
32 
33 void
34 checki ()
35 {
36   {
37     istringstream i("123");
38     mpz_class x;
39     i >> x;
40     ASSERT_ALWAYS (x == 123);
41   }
42   {
43     istringstream i("3/4");
44     mpq_class x;
45     i >> x;
46     ASSERT_ALWAYS (x == .75);
47   }
48   {
49     istringstream i("1.5");
50     mpf_class x;
51     i >> x;
52     ASSERT_ALWAYS (x == 1.5);
53   }
54 }
55 
56 void
57 checko ()
58 {
59   {
60     ostringstream o;
61     mpz_class x=123;
62     o << x;
63     ASSERT_ALWAYS (o.str() == "123");
64   }
65   {
66     ostringstream o;
67     mpz_class x=123;
68     o << (x+1);
69     ASSERT_ALWAYS (o.str() == "124");
70   }
71   {
72     ostringstream o;
73     mpq_class x(3,4);
74     o << x;
75     ASSERT_ALWAYS (o.str() == "3/4");
76   }
77   {
78     ostringstream o;
79     mpq_class x(3,4);
80     o << (x+1);
81     ASSERT_ALWAYS (o.str() == "7/4");
82   }
83   {
84     ostringstream o;
85     mpf_class x=1.5;
86     o << x;
87     ASSERT_ALWAYS (o.str() == "1.5");
88   }
89   {
90     ostringstream o;
91     mpf_class x=1.5;
92     o << (x+1);
93     ASSERT_ALWAYS (o.str() == "2.5");
94   }
95 }
96 
97 int
98 main (int argc, char *argv[])
99 {
100   tests_start ();
101 
102   checki ();
103   checko ();
104 
105   tests_end ();
106   return 0;
107 }
108