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1 // { dg-do compile }
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2 // { dg-options "-O3 -ftracer -fsched-pressure -Wno-unused-parameter -Wno-return-type" }
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3
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4 extern "C"
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5 {
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6 namespace std
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7 {
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8 class exception
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9 {
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10 virtual const char *what () const throw ();
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11 };
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12 }
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13 }
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14 namespace std __attribute__ ((__visibility__ ("default")))
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15 {
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16 template < typename _Alloc > class allocator;
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17 template < class _CharT > struct char_traits;
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18 template < typename _CharT, typename _Traits =
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19 char_traits < _CharT >, typename _Alloc =
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20 allocator < _CharT > >class basic_string;
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21 typedef basic_string < char >string;
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22 template < typename _CharT, typename _Traits =
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23 char_traits < _CharT > >class basic_ios;
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24 typedef basic_ios < char >ios;
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25 }
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26
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27 namespace __gnu_cxx __attribute__ ((__visibility__ ("default")))
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28 {
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29 template < typename _Tp > class new_allocator
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30 {
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31 };
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32 }
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33
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34 namespace std __attribute__ ((__visibility__ ("default")))
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35 {
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36 template < typename _Tp > class allocator:public __gnu_cxx::new_allocator <
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37 _Tp >
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38 {
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39 };
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40 }
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41
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42 typedef int _Atomic_word;
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43 namespace __gnu_cxx __attribute__ ((__visibility__ ("default")))
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44 {
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45 static inline _Atomic_word
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46 __attribute__ ((__unused__)) __exchange_and_add_dispatch (_Atomic_word *
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47 __mem,
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48 int __val)
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49 {
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50 }
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51 }
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52
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53 namespace std __attribute__ ((__visibility__ ("default")))
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54 {
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55 template < typename _CharT, typename _Traits,
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56 typename _Alloc > class basic_string
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57 {
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58 typedef _Alloc allocator_type;
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59 private:struct _Rep_base
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60 {
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61 _Atomic_word _M_refcount;
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62 };
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63 struct _Rep:_Rep_base
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64 {
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65 void _M_dispose (const _Alloc & __a)
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66 {
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67 if (__builtin_expect (this != &_S_empty_rep (), false))
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68 {
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69 if (__gnu_cxx::
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70 __exchange_and_add_dispatch (&this->_M_refcount, -1) <= 0)
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71 {
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72 _M_destroy (__a);
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73 }
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74 }
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75 }
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76 void _M_destroy (const _Alloc &) throw ();
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77 };
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78 struct _Alloc_hider:_Alloc
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79 {
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80 _CharT *_M_p;
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81 };
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82 private:mutable _Alloc_hider _M_dataplus;
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83 _CharT *_M_data () const
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84 {
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85 return _M_dataplus._M_p;
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86 }
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87 _Rep *_M_rep () const
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88 {
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89 return &((reinterpret_cast < _Rep * >(_M_data ()))[-1]);
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90 }
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91 static _Rep & _S_empty_rep ()
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92 {
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93 }
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94 public: basic_string ():_M_dataplus (_S_empty_rep ()._M_refdata (),
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95 _Alloc ())
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96 {
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97 }
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98 basic_string (const _CharT * __s, const _Alloc & __a = _Alloc ());
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99 ~basic_string ()
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100 {
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101 _M_rep ()->_M_dispose (this->get_allocator ());
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102 }
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103 allocator_type get_allocator () const
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104 {
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105 }
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106 };
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107 class ios_base
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108 {
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109 public:class failure:public exception
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110 {
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111 public:explicit failure (const string & __str) throw ();
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112 };
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113 };
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114 template < typename _CharT, typename _Traits > class basic_ios:public
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115 ios_base
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116 {
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117 };
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118 namespace iostreams
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119 {
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120 class zlib_error:public std::ios::failure
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121 {
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122 public:explicit zlib_error (int error);
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123 private:int error_;
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124 };
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125 zlib_error::zlib_error (int error):std::ios::failure ("zlib error"),
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126 error_ (error)
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127 {
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128 }
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129 }
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130 }
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