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1 | // 1999-07-26 bkoz |
2 | ||
8d9254fc | 3 | // Copyright (C) 1999-2020 Free Software Foundation, Inc. |
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4 | // |
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 | |
748086b7 | 8 | // Free Software Foundation; either version 3, or (at your option) |
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9 | // any later version. |
10 | ||
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. | |
15 | ||
16 | // You should have received a copy of the GNU General Public License along | |
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17 | // with this library; see the file COPYING3. If not see |
18 | // <http://www.gnu.org/licenses/>. | |
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19 | |
20 | // 27.6.1.2.3 character extractors | |
21 | ||
22 | #include <istream> | |
23 | #include <sstream> | |
fe413112 | 24 | #include <testsuite_hooks.h> |
b2dad0e3 | 25 | |
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26 | void test01() |
27 | { | |
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28 | std::string str_01; |
29 | const std::string str_02("coltrane playing 'softly as a morning sunrise'"); | |
30 | const std::string str_03("coltrane"); | |
31 | ||
32 | std::stringbuf isbuf_01(std::ios_base::in); | |
33 | std::stringbuf isbuf_02(str_02, std::ios_base::in); | |
8fc81078 | 34 | std::istream is_01(0); |
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35 | std::istream is_02(&isbuf_02); |
36 | ||
37 | std::ios_base::iostate state1, state2, statefail; | |
38 | statefail = std::ios_base::failbit; | |
39 | ||
40 | // template<_CharT, _Traits> | |
41 | // basic_istream& operator>>(istream&, _CharT*) | |
d3f128e9 | 42 | const int n = 20; |
b2dad0e3 | 43 | char array1[n]; |
d3f128e9 | 44 | array1[0] = '\0'; |
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45 | typedef std::ios::traits_type ctraits_type; |
46 | ctraits_type::int_type i1, i2; | |
47 | ||
48 | state1 = is_01.rdstate(); | |
49 | i1 = ctraits_type::length(array1); | |
50 | is_01 >> array1; // should snake 0 characters, not alter stream state | |
51 | i2 = ctraits_type::length(array1); | |
52 | state2 = is_01.rdstate(); | |
aa1b2f7d BV |
53 | VERIFY( i1 == i2 ); |
54 | VERIFY( state1 != state2 ); | |
55 | VERIFY( static_cast<bool>(state2 & statefail) ); | |
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56 | |
57 | state1 = is_02.rdstate(); | |
58 | is_02 >> array1; // should snake "coltrane" | |
59 | state2 = is_02.rdstate(); | |
aa1b2f7d BV |
60 | VERIFY( state1 == state2 ); |
61 | VERIFY( !static_cast<bool>(state2 & statefail) ); | |
62 | VERIFY( array1[str_03.size() - 1] == 'e' ); | |
b2dad0e3 | 63 | array1[str_03.size()] = '\0'; |
aa1b2f7d | 64 | VERIFY( !str_03.compare(0, str_03.size(), array1) ); |
b2dad0e3 | 65 | std::istream::int_type int1 = is_02.peek(); // should be ' ' |
aa1b2f7d | 66 | VERIFY( int1 == ' ' ); |
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67 | |
68 | state1 = is_02.rdstate(); | |
69 | is_02 >> array1; // should snake "playing" as sentry "eats" ws | |
70 | state2 = is_02.rdstate(); | |
71 | int1 = is_02.peek(); // should be ' ' | |
aa1b2f7d BV |
72 | VERIFY( int1 == ' ' ); |
73 | VERIFY( state1 == state2 ); | |
74 | VERIFY( !static_cast<bool>(state2 & statefail) ); | |
b2dad0e3 | 75 | |
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76 | // template<_CharT, _Traits> |
77 | // basic_istream& operator>>(istream&, unsigned char*) | |
78 | unsigned char array2[n]; | |
79 | state1 = is_02.rdstate(); | |
80 | is_02 >> array2; // should snake 'softly | |
81 | state2 = is_02.rdstate(); | |
aa1b2f7d BV |
82 | VERIFY( state1 == state2 ); |
83 | VERIFY( !static_cast<bool>(state2 & statefail) ); | |
84 | VERIFY( array2[0] == '\'' ); | |
85 | VERIFY( array2[1] == 's' ); | |
86 | VERIFY( array2[6] == 'y' ); | |
b2dad0e3 | 87 | int1 = is_02.peek(); // should be ' ' |
aa1b2f7d | 88 | VERIFY( int1 == ' ' ); |
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89 | |
90 | // template<_CharT, _Traits> | |
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91 | // basic_istream& operator>>(istream&, signed char*) |
92 | signed char array3[n]; | |
93 | state1 = is_02.rdstate(); | |
94 | is_02 >> array3; // should snake "as" | |
95 | state2 = is_02.rdstate(); | |
aa1b2f7d BV |
96 | VERIFY( state1 == state2 ); |
97 | VERIFY( !static_cast<bool>(state2 & statefail) ); | |
98 | VERIFY( array3[0] == 'a' ); | |
99 | VERIFY( array3[1] == 's' ); | |
b2dad0e3 | 100 | int1 = is_02.peek(); // should be ' ' |
aa1b2f7d | 101 | VERIFY( int1 == ' ' ); |
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102 | } |
103 | ||
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104 | int main() |
105 | { | |
106 | test01(); | |
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107 | return 0; |
108 | } |