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add ptr_fun, mem_fun, mem_fun_ref

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bolero-MURAKAMI 2012-04-11 23:28:29 +09:00
parent 4a8e938887
commit f86d17d0d4
46 changed files with 322 additions and 76 deletions
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91
sprout/functional/mem_fun.hpp Normal file
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#ifndef SPROUT_FUNCTIONAL_MEM_FUN_HPP
#define SPROUT_FUNCTIONAL_MEM_FUN_HPP
#include <sprout/config.hpp>
#include <sprout/functional/base.hpp>
namespace sprout {
// D.8.2.2 adaptors (deprecated)
template<typename Ret, typename T>
class mem_fun_t
: public sprout::unary_function<T*, Ret>
{
private:
Ret (T::*f_)();
public:
explicit SPROUT_CONSTEXPR mem_fun_t(Ret (T::*pf)())
: f_(pf)
{}
SPROUT_CONSTEXPR Ret operator()(T* p) const {
return (p->*f_)();
}
};
template<typename Ret, typename T>
class const_mem_fun_t
: public sprout::unary_function<const T*, Ret>
{
private:
Ret (T::*f_)() const;
public:
explicit SPROUT_CONSTEXPR const_mem_fun_t(Ret (T::*pf)() const)
: f_(pf)
{}
SPROUT_CONSTEXPR Ret operator()(const T* p) const {
return (p->*f_)();
}
};
template<typename Ret, typename T, typename Arg>
class mem_fun1_t
: public sprout::binary_function<T*, Arg, Ret>
{
private:
Ret (T::*f_)(Arg);
public:
explicit SPROUT_CONSTEXPR mem_fun1_t(Ret (T::*pf)(Arg))
: f_(pf)
{}
SPROUT_CONSTEXPR Ret operator()(T* p, Arg x) const {
return (p->*f_)(x);
}
};
template<typename Ret, typename T, typename Arg>
class const_mem_fun1_t
: public sprout::binary_function<const T*, Arg, Ret>
{
private:
Ret (T::*f_)(Arg) const;
public:
explicit SPROUT_CONSTEXPR const_mem_fun1_t(Ret (T::*pf)(Arg) const)
: f_(pf)
{}
SPROUT_CONSTEXPR Ret operator()(const T* p, Arg x) const {
return (p->*f_)(x);
}
};
template<typename Ret, typename T>
inline SPROUT_CONSTEXPR sprout::mem_fun_t<Ret, T> mem_fun(Ret (T::*f)()) {
return sprout::mem_fun_t<Ret, T>(f);
}
template<typename Ret, typename T>
inline SPROUT_CONSTEXPR sprout::const_mem_fun_t<Ret, T> mem_fun(Ret (T::*f)() const) {
return sprout::const_mem_fun_t<Ret, T>(f);
}
template<typename Ret, typename T, typename Arg>
inline SPROUT_CONSTEXPR sprout::mem_fun1_t<Ret, T, Arg> mem_fun(Ret (T::*f)(Arg)) {
return sprout::mem_fun1_t<Ret, T, Arg>(f);
}
template<typename Ret, typename T, typename Arg>
inline SPROUT_CONSTEXPR sprout::const_mem_fun1_t<Ret, T, Arg> mem_fun(Ret (T::*f)(Arg) const) {
return sprout::const_mem_fun1_t<Ret, T, Arg>(f);
}
} // namespace sprout
#endif // #ifndef SPROUT_FUNCTIONAL_MEM_FUN_HPP