Class | FFI::Pointer |
In: |
lib/ffi/pointer.rb
|
Parent: | Object |
@param [Type] type type of data to read from pointer‘s contents @param [Symbol] reader method to send to self to read type @param [Numeric] length @return [Array] Read an array of type of length length. @example
ptr.read_array_of_type(TYPE_UINT8, :get_uint8, 4) # -> [1, 2, 3, 4]
@param [nil,Numeric] len length of string to return @return [String] Read pointer‘s contents as a string, or the first len bytes of the equivalent string if len is not nil.
@param [Numeric] len length of string to return @return [String] Read the first len bytes of pointer‘s contents as a string.
Same as:
ptr.read_string(len) # with len not nil
@param [Type] type type of data to write to pointer‘s contents @param [Symbol] writer method to send to self to write type @param [Array] ary @return [self] Write ary in pointer‘s contents as type. @example
ptr.write_array_of_type(TYPE_UINT8, :put_uint8, [1, 2, 3 ,4])
@param [String] str string to write @param [Numeric] len length of string to return @return [self] Write str in pointer‘s contents, or first len bytes if len is not nil.