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7364f286 | 1 | // { dg-options "-std=gnu++0x" } |
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2 | // { dg-require-string-conversions "" } |
3 | ||
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4 | // 2008-06-15 Paolo Carlini <paolo.carlini@oracle.com> |
5 | ||
6 | // Copyright (C) 2008 Free Software Foundation, Inc. | |
7 | // | |
8 | // This file is part of the GNU ISO C++ Library. This library is free | |
9 | // software; you can redistribute it and/or modify it under the | |
10 | // terms of the GNU General Public License as published by the | |
11 | // Free Software Foundation; either version 2, or (at your option) | |
12 | // any later version. | |
13 | ||
14 | // This library is distributed in the hope that it will be useful, | |
15 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
17 | // GNU General Public License for more details. | |
18 | ||
19 | // You should have received a copy of the GNU General Public License along | |
20 | // with this library; see the file COPYING. If not, write to the Free | |
21 | // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, | |
22 | // USA. | |
23 | ||
24 | // 21.4 Numeric Conversions [string.conversions] | |
25 | ||
26 | #include <string> | |
27 | #include <limits> | |
28 | #include <stdexcept> | |
29 | #include <testsuite_hooks.h> | |
30 | ||
31 | void | |
32 | test01() | |
33 | { | |
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34 | bool test __attribute__((unused)) = false; |
35 | using namespace std; | |
36 | ||
37 | try | |
38 | { | |
39 | string one; | |
40 | stof(one); | |
41 | } | |
42 | catch(std::invalid_argument) | |
43 | { | |
44 | test = true; | |
45 | } | |
46 | catch(...) | |
47 | { | |
48 | } | |
49 | VERIFY( test ); | |
50 | ||
51 | test = false; | |
52 | try | |
53 | { | |
54 | string one("a"); | |
55 | stof(one); | |
56 | } | |
57 | catch(std::invalid_argument) | |
58 | { | |
59 | test = true; | |
60 | } | |
61 | catch(...) | |
62 | { | |
63 | } | |
64 | VERIFY( test ); | |
65 | ||
66 | float f1 = 0.0f; | |
67 | size_t idx1 = 0; | |
68 | try | |
69 | { | |
70 | string one("2.0a"); | |
71 | f1 = stof(one, &idx1); | |
72 | } | |
73 | catch(...) | |
74 | { | |
75 | test = false; | |
76 | } | |
77 | VERIFY( test ); | |
78 | VERIFY( f1 == 2.0f ); | |
79 | VERIFY( idx1 == 3 ); | |
80 | ||
81 | test = false; | |
82 | try | |
83 | { | |
84 | string one("1e"); | |
85 | one.append(2 * numeric_limits<float>::max_exponent10, '9'); | |
86 | f1 = stof(one); | |
87 | } | |
88 | catch(std::out_of_range) | |
89 | { | |
90 | test = true; | |
91 | } | |
92 | catch(...) | |
93 | { | |
94 | } | |
95 | VERIFY( test ); | |
96 | VERIFY( f1 == 2.0f ); | |
97 | ||
98 | try | |
99 | { | |
100 | long double ld0 = numeric_limits<float>::max() / 100.0; | |
101 | string one(to_string(ld0)); | |
102 | stof(one); | |
103 | } | |
104 | catch(...) | |
105 | { | |
106 | test = false; | |
107 | } | |
108 | VERIFY( test ); | |
109 | ||
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110 | if ((numeric_limits<long double>::max() / 10000.0L) |
111 | > numeric_limits<float>::max()) | |
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112 | { |
113 | test = false; | |
114 | f1 = -1.0f; | |
115 | try | |
116 | { | |
117 | long double ld1 = numeric_limits<float>::max(); | |
118 | ld1 *= 100.0; | |
119 | string one(to_string(ld1)); | |
120 | f1 = stof(one); | |
121 | } | |
122 | catch(std::out_of_range) | |
123 | { | |
124 | test = true; | |
125 | } | |
126 | catch(...) | |
127 | { | |
128 | } | |
129 | VERIFY( test ); | |
130 | VERIFY( f1 == -1.0f ); | |
131 | } | |
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132 | } |
133 | ||
134 | int main() | |
135 | { | |
136 | test01(); | |
137 | return 0; | |
138 | } |