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111
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1 /* { dg-do compile } */
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2 /* { dg-options "-O2" } */
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131
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3 // { dg-additional-options "-Wno-return-type" }
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111
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4 namespace sigc {
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5 template <class T_type> struct type_trait {
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6 typedef T_type& pass;
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7 typedef const T_type& take;
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8 typedef T_type* pointer;
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9 };
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10 template <class T_type> struct type_trait<T_type&> {
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11 typedef T_type& pass;
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12 };
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13 template<> struct type_trait<void> {
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14 typedef void pass;
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15 };
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16 template <class T_base, class T_derived> struct is_base_and_derived {
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17 struct big {
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18 char memory[64];
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19 };
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20 static big is_base_class_(...);
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21 static char is_base_class_(typename type_trait<T_base>::pointer);
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22 static const bool value = sizeof(is_base_class_(reinterpret_cast<typename type_trait<T_derived>::pointer>(0))) == sizeof(char);
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23 };
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24 struct nil;
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25 struct functor_base {
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26 };
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27 template <class T_functor, bool I_derives_functor_base=is_base_and_derived<functor_base,T_functor>::value> struct functor_trait {
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28 typedef typename T_functor::result_type result_type;
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29 typedef T_functor functor_type;
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30 };
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31 struct adaptor_base : public functor_base {
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32 };
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33 template <class T_functor, class T_arg1=void,class T_arg2=void,class T_arg3=void,class T_arg4=void,class T_arg5=void,class T_arg6=void,class T_arg7=void, bool I_derives_adaptor_base=is_base_and_derived<adaptor_base,T_functor>::value> struct deduce_result_type {
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34 typedef typename functor_trait<T_functor>::result_type type;
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35 };
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36 template <class T_functor> struct adaptor_functor
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37 : public adaptor_base {
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38 template <class T_arg1=void,class T_arg2=void,class T_arg3=void,class T_arg4=void,class T_arg5=void,class T_arg6=void,class T_arg7=void> struct deduce_result_type {
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39 typedef typename sigc::deduce_result_type<T_functor, T_arg1,T_arg2,T_arg3,T_arg4,T_arg5,T_arg6,T_arg7>::type type;
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40 };
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41 typedef typename functor_trait<T_functor>::result_type result_type;
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42 template <class T_arg1,class T_arg2> typename deduce_result_type<T_arg1,T_arg2>::type operator()(T_arg1 _A_arg1,T_arg2 _A_arg2) const {
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43 return functor_(_A_arg1,_A_arg2);
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44 }
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45 explicit adaptor_functor(const T_functor& _A_functor) : functor_(_A_functor) {
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46 }
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47 mutable T_functor functor_;
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48 };
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49 template <class T_functor, bool I_isadaptor = is_base_and_derived<adaptor_base, T_functor>::value> struct adaptor_trait;
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50 template <class T_functor> struct adaptor_trait<T_functor, true> {
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51 typedef T_functor adaptor_type;
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52 };
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53 template <class T_functor> struct adaptor_trait<T_functor, false> {
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54 typedef typename functor_trait<T_functor>::functor_type functor_type;
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55 typedef adaptor_functor<functor_type> adaptor_type;
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56 };
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57 template <class T_functor> struct adapts
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58 : public adaptor_base {
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59 typedef typename adaptor_trait<T_functor>::adaptor_type adaptor_type;
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60 explicit adapts(const T_functor& _A_functor) : functor_(_A_functor) {
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61 }
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62 mutable adaptor_type functor_;
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63 };
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64 template <class T_type> struct unwrap_reference {
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65 typedef T_type type;
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66 };
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67 template <class T_type> class bound_argument {
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68 public:
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69 bound_argument(const T_type& _A_argument) : visited_(_A_argument) {
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70 }
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71 inline T_type& invoke() {
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72 }
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73 T_type visited_;
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74 };
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75 template <int I_location, class T_functor, class T_type1=nil,class T_type2=nil,class T_type3=nil,class T_type4=nil,class T_type5=nil,class T_type6=nil,class T_type7=nil> struct bind_functor;
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76 template <class T_functor, class T_bound> struct bind_functor<0, T_functor, T_bound, nil,nil,nil,nil,nil,nil> : public adapts<T_functor> {
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77 typedef typename adapts<T_functor>::adaptor_type adaptor_type;
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78 template <class T_arg1=void,class T_arg2=void,class T_arg3=void,class T_arg4=void,class T_arg5=void,class T_arg6=void,class T_arg7=void> struct deduce_result_type {
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79 typedef typename adaptor_type::template deduce_result_type<typename type_trait<typename unwrap_reference<T_bound>::type>::pass, typename type_trait<T_arg1>::pass, typename type_trait<T_arg2>::pass, typename type_trait<T_arg3>::pass, typename type_trait<T_arg4>::pass, typename type_trait<T_arg5>::pass, typename type_trait<T_arg6>::pass>::type type;
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80 };
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81 typedef typename adaptor_type::result_type result_type;
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82 result_type operator()() {
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83 return this->functor_.template operator()<typename type_trait<typename unwrap_reference<T_bound>::type>::pass> (bound_.invoke());
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84 }
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85 template <class T_arg1> typename deduce_result_type<T_arg1>::type operator()(T_arg1 _A_arg1) {
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86 return this->functor_.template operator()<typename type_trait<typename unwrap_reference<T_bound>::type>::pass, typename type_trait<T_arg1>::pass> (bound_.invoke(), _A_arg1);
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87 }
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88 bind_functor(typename type_trait<T_functor>::take _A_func, typename type_trait<T_bound>::take _A_bound) : adapts<T_functor>(_A_func), bound_(_A_bound) {
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89 }
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90 bound_argument<T_bound> bound_;
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91 };
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92 template <int I_location, class T_bound1, class T_functor> inline bind_functor<I_location, T_functor, T_bound1> bind(const T_functor& _A_func, T_bound1 _A_b1) {
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93 return bind_functor<I_location, T_functor, T_bound1>(_A_func, _A_b1);
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94 };
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95 }
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96 struct foo {
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97 typedef int result_type;
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98 int operator()(int i, int j);
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99 };
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100 int main() {
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101 sigc::bind<0>(sigc::bind<0>(foo(),7),8)();
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102 }
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