exprtk::rtl::io::file::read< T > Class Template Reference

#include <exprtk.hpp>

Inheritance diagram for exprtk::rtl::io::file::read< T >:

Collaboration diagram for exprtk::rtl::io::file::read< T >:

Public Types
typedef exprtk::igeneric_function< T >	igfun_t
typedef igfun_t::parameter_list_t	parameter_list_t
typedef igfun_t::generic_type	generic_type
typedef generic_type::string_view	string_t
typedef generic_type::scalar_view	scalar_t
typedef generic_type::vector_view	vector_t
Public Types inherited from exprtk::igeneric_function< T >
enum	return_type { e_rtrn_scalar = 0 , e_rtrn_string = 1 , e_rtrn_overload = 2 }
typedef T	type
typedef type_store< T >	generic_type
typedef generic_type::parameter_list	parameter_list_t

Public Member Functions
	read ()
T	operator() (const std::size_t &ps_index, parameter_list_t parameters)
Public Member Functions inherited from exprtk::igeneric_function< T >
	igeneric_function (const std::string &param_seq="", const return_type rtr_type=e_rtrn_scalar)
virtual	~igeneric_function ()
virtual T	operator() (parameter_list_t)
virtual T	operator() (std::string &, parameter_list_t)
virtual T	operator() (const std::size_t &, std::string &, parameter_list_t)
Public Member Functions inherited from exprtk::function_traits
	function_traits ()
bool &	allow_zero_parameters ()
bool &	has_side_effects ()
std::size_t &	min_num_args ()
std::size_t &	max_num_args ()

Additional Inherited Members
Public Attributes inherited from exprtk::igeneric_function< T >
std::string	parameter_sequence
return_type	rtrn_type

Detailed Description

template<typename T>
class exprtk::rtl::io::file::read< T >

Definition at line 44067 of file exprtk.hpp.

Member Typedef Documentation

generic_type

template<typename T >

typedef igfun_t::generic_type exprtk::rtl::io::file::read< T >::generic_type

Definition at line 44073 of file exprtk.hpp.

igfun_t

template<typename T >

typedef exprtk::igeneric_function<T> exprtk::rtl::io::file::read< T >::igfun_t

Definition at line 44071 of file exprtk.hpp.

parameter_list_t

template<typename T >

typedef igfun_t::parameter_list_t exprtk::rtl::io::file::read< T >::parameter_list_t

Definition at line 44072 of file exprtk.hpp.

scalar_t

template<typename T >

typedef generic_type::scalar_view exprtk::rtl::io::file::read< T >::scalar_t

Definition at line 44075 of file exprtk.hpp.

string_t

template<typename T >

typedef generic_type::string_view exprtk::rtl::io::file::read< T >::string_t

Definition at line 44074 of file exprtk.hpp.

vector_t

template<typename T >

typedef generic_type::vector_view exprtk::rtl::io::file::read< T >::vector_t

Definition at line 44076 of file exprtk.hpp.

Constructor & Destructor Documentation

read()

template<typename T >

exprtk::rtl::io::file::read< T >::read ( )

inline

Definition at line 44080 of file exprtk.hpp.

      : igfun_t("TS|TST|TV|TVT")
      { details::perform_check<T>(); }

References exprtk::details::match_impl().

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Member Function Documentation

operator()()

template<typename T >

T exprtk::rtl::io::file::read< T >::operator() ( const std::size_t &  ps_index, parameter_list_t  parameters  )

inlinevirtual

Reimplemented from exprtk::igeneric_function< T >.

Definition at line 44084 of file exprtk.hpp.

      {
         details::file_descriptor* fd = details::make_handle(scalar_t(parameters[0])());
 
         switch (ps_index)
         {
            case 0  : {
                         string_t buffer(parameters[1]);
                         const std::size_t amount = buffer.size();
                         return T(fd->read(buffer,amount) ? 1 : 0);
                      }
 
            case 1  : {
                         string_t buffer(parameters[1]);
                         const std::size_t amount =
                                  std::min(buffer.size(),
                                           static_cast<std::size_t>(scalar_t(parameters[2])()));
                         return T(fd->read(buffer,amount) ? 1 : 0);
                      }
 
            case 2  : {
                         vector_t vec(parameters[1]);
                         const std::size_t amount = vec.size();
                         return T(fd->read(vec,amount) ? 1 : 0);
                      }
 
            case 3  : {
                         vector_t vec(parameters[1]);
                         const std::size_t amount =
                                  std::min(vec.size(),
                                           static_cast<std::size_t>(scalar_t(parameters[2])()));
                         return T(fd->read(vec,amount) ? 1 : 0);
                      }
         }
 
         return T(0);
      }

References exprtk::rtl::io::file::details::make_handle(), exprtk::rtl::io::file::details::file_descriptor::read(), and exprtk::type_store< T >::type_view< ViewType >::size().

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The documentation for this class was generated from the following file:

• exprtk/exprtk.hpp