#include <null.h>
Inheritance diagram for input_null:
Public Member Functions | |
| virtual | ~input_null () |
Static Public Member Functions | |
| static pointer | create (void) |
Private Member Functions | |
| input_null () | |
| size_t | read_inner (source_location &data_locn, void *data, size_t data_size) |
| input_null (const input_null &rhs) | |
| input_null & | operator= (const input_null &rhs) |
Detailed Description
The input_null class is used to represent an input source this is always empty.
Constructor & Destructor Documentation
| input_null::~input_null | ( | ) | [virtual] |
| input_null::input_null | ( | ) | [private] |
| input_null::input_null | ( | const input_null & | rhs | ) | [private] |
The copy constructor. Do not use.
- Parameters:
-
rhs The right hand side of the initialization.
Member Function Documentation
| input_null::pointer input_null::create | ( | void | ) | [static] |
| input_null& input_null::operator= | ( | const input_null & | rhs | ) | [private] |
The assignment operator. Do not use.
- Parameters:
-
rhs The right hand side of the assignment.
| size_t input_null::read_inner | ( | source_location & | data_locn, |
| void * | data, | ||
| size_t | data_size | ||
| ) | [private, virtual] |
The read_inner method is called byu the underflow method to fill the buffer buf with more data.
- Parameters:
-
data_locn The location of the beginning of the returned data. It is the first argument because it's position is immediately before the returned data. data pointer to the base of an array to receive the data data_size the maximum number of bytes of data than can be received into the data array.
- Returns:
- The nunber of bytes read into data, or 0 at end of file. always <= data_size
Implements input.
The documentation for this class was generated from the following files:
