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52066eae | 1 | // { dg-do run { target c++11 } } |
83b83ae9 | 2 | |
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3 | // 2008-06-15 Paolo Carlini <paolo.carlini@oracle.com> |
4 | ||
a945c346 | 5 | // Copyright (C) 2008-2024 Free Software Foundation, Inc. |
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6 | // |
7 | // This file is part of the GNU ISO C++ Library. This library is free | |
8 | // software; you can redistribute it and/or modify it under the | |
9 | // terms of the GNU General Public License as published by the | |
748086b7 | 10 | // Free Software Foundation; either version 3, or (at your option) |
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11 | // any later version. |
12 | ||
13 | // This library is distributed in the hope that it will be useful, | |
14 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
16 | // GNU General Public License for more details. | |
17 | ||
18 | // You should have received a copy of the GNU General Public License along | |
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19 | // with this library; see the file COPYING3. If not see |
20 | // <http://www.gnu.org/licenses/>. | |
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21 | |
22 | // 21.4 Numeric Conversions [string.conversions] | |
23 | ||
24 | #include <string> | |
25 | #include <limits> | |
26 | #include <stdexcept> | |
27 | #include <testsuite_hooks.h> | |
28 | ||
29 | void | |
30 | test01() | |
31 | { | |
118c8424 | 32 | bool test = false; |
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33 | using namespace std; |
34 | ||
35 | try | |
36 | { | |
37 | string one; | |
13feb023 | 38 | stof(one); |
7364f286 | 39 | } |
13feb023 | 40 | catch(const std::invalid_argument&) |
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41 | { |
42 | test = true; | |
43 | } | |
44 | catch(...) | |
45 | { | |
46 | } | |
47 | VERIFY( test ); | |
48 | ||
49 | test = false; | |
50 | try | |
51 | { | |
52 | string one("a"); | |
13feb023 | 53 | stof(one); |
7364f286 | 54 | } |
13feb023 | 55 | catch(const std::invalid_argument&) |
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56 | { |
57 | test = true; | |
58 | } | |
59 | catch(...) | |
60 | { | |
61 | } | |
62 | VERIFY( test ); | |
63 | ||
64 | float f1 = 0.0f; | |
65 | size_t idx1 = 0; | |
66 | try | |
67 | { | |
68 | string one("2.0a"); | |
13feb023 | 69 | f1 = stof(one, &idx1); |
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70 | } |
71 | catch(...) | |
72 | { | |
73 | test = false; | |
74 | } | |
75 | VERIFY( test ); | |
76 | VERIFY( f1 == 2.0f ); | |
77 | VERIFY( idx1 == 3 ); | |
78 | ||
79 | test = false; | |
80 | try | |
81 | { | |
82 | string one("1e"); | |
83 | one.append(2 * numeric_limits<float>::max_exponent10, '9'); | |
84 | f1 = stof(one); | |
85 | } | |
13feb023 | 86 | catch(const std::out_of_range&) |
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87 | { |
88 | test = true; | |
89 | } | |
90 | catch(...) | |
91 | { | |
92 | } | |
93 | VERIFY( test ); | |
94 | VERIFY( f1 == 2.0f ); | |
95 | ||
96 | try | |
97 | { | |
98 | long double ld0 = numeric_limits<float>::max() / 100.0; | |
99 | string one(to_string(ld0)); | |
100 | stof(one); | |
101 | } | |
102 | catch(...) | |
103 | { | |
104 | test = false; | |
105 | } | |
106 | VERIFY( test ); | |
107 | ||
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108 | if ((numeric_limits<long double>::max() / 10000.0L) |
109 | > numeric_limits<float>::max()) | |
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110 | { |
111 | test = false; | |
112 | f1 = -1.0f; | |
113 | try | |
114 | { | |
115 | long double ld1 = numeric_limits<float>::max(); | |
116 | ld1 *= 100.0; | |
117 | string one(to_string(ld1)); | |
118 | f1 = stof(one); | |
119 | } | |
13feb023 | 120 | catch(const std::out_of_range&) |
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121 | { |
122 | test = true; | |
123 | } | |
124 | catch(...) | |
125 | { | |
126 | } | |
127 | VERIFY( test ); | |
128 | VERIFY( f1 == -1.0f ); | |
129 | } | |
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130 | } |
131 | ||
132 | int main() | |
133 | { | |
134 | test01(); | |
135 | return 0; | |
136 | } |