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3 // Copyright (C) 1999-2016 Free Software Foundation, Inc.
5 // This file is part of the GNU ISO C++ Library. This library is free
6 // software; you can redistribute it and/or modify it under the
7 // terms of the GNU General Public License as published by the
8 // Free Software Foundation; either version 3, or (at your option)
11 // This library is distributed in the hope that it will be useful,
12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 // GNU General Public License for more details.
16 // You should have received a copy of the GNU General Public License along
17 // with this library; see the file COPYING3. If not see
18 // <http://www.gnu.org/licenses/>.
20 // 27.6.1.2.3 character extractors
24 #include <testsuite_hooks.h>
28 bool test
__attribute__((unused
)) = true;
30 const std::string
str_02("coltrane playing 'softly as a morning sunrise'");
31 const std::string
str_03("coltrane");
33 std::stringbuf
isbuf_01(std::ios_base::in
);
34 std::stringbuf
isbuf_02(str_02
, std::ios_base::in
);
35 std::istream
is_01(0);
36 std::istream
is_02(&isbuf_02
);
38 std::ios_base::iostate state1
, state2
, statefail
;
39 statefail
= std::ios_base::failbit
;
41 // template<_CharT, _Traits>
42 // basic_istream& operator>>(istream&, _CharT*)
46 typedef std::ios::traits_type ctraits_type
;
47 ctraits_type::int_type i1
, i2
;
49 state1
= is_01
.rdstate();
50 i1
= ctraits_type::length(array1
);
51 is_01
>> array1
; // should snake 0 characters, not alter stream state
52 i2
= ctraits_type::length(array1
);
53 state2
= is_01
.rdstate();
55 VERIFY( state1
!= state2
);
56 VERIFY( static_cast<bool>(state2
& statefail
) );
58 state1
= is_02
.rdstate();
59 is_02
>> array1
; // should snake "coltrane"
60 state2
= is_02
.rdstate();
61 VERIFY( state1
== state2
);
62 VERIFY( !static_cast<bool>(state2
& statefail
) );
63 VERIFY( array1
[str_03
.size() - 1] == 'e' );
64 array1
[str_03
.size()] = '\0';
65 VERIFY( !str_03
.compare(0, str_03
.size(), array1
) );
66 std::istream::int_type int1
= is_02
.peek(); // should be ' '
67 VERIFY( int1
== ' ' );
69 state1
= is_02
.rdstate();
70 is_02
>> array1
; // should snake "playing" as sentry "eats" ws
71 state2
= is_02
.rdstate();
72 int1
= is_02
.peek(); // should be ' '
73 VERIFY( int1
== ' ' );
74 VERIFY( state1
== state2
);
75 VERIFY( !static_cast<bool>(state2
& statefail
) );
77 // template<_CharT, _Traits>
78 // basic_istream& operator>>(istream&, unsigned char*)
79 unsigned char array2
[n
];
80 state1
= is_02
.rdstate();
81 is_02
>> array2
; // should snake 'softly
82 state2
= is_02
.rdstate();
83 VERIFY( state1
== state2
);
84 VERIFY( !static_cast<bool>(state2
& statefail
) );
85 VERIFY( array2
[0] == '\'' );
86 VERIFY( array2
[1] == 's' );
87 VERIFY( array2
[6] == 'y' );
88 int1
= is_02
.peek(); // should be ' '
89 VERIFY( int1
== ' ' );
91 // template<_CharT, _Traits>
92 // basic_istream& operator>>(istream&, signed char*)
93 signed char array3
[n
];
94 state1
= is_02
.rdstate();
95 is_02
>> array3
; // should snake "as"
96 state2
= is_02
.rdstate();
97 VERIFY( state1
== state2
);
98 VERIFY( !static_cast<bool>(state2
& statefail
) );
99 VERIFY( array3
[0] == 'a' );
100 VERIFY( array3
[1] == 's' );
101 int1
= is_02
.peek(); // should be ' '
102 VERIFY( int1
== ' ' );