Class: FFI::StructLayout::Enum

Inherits:

Field

• Object
• Field
• FFI::StructLayout::Enum

Defined in:

lib/ffi/struct.rb

Overview

An enum Field in a FFI::StructLayout.

Instance Method Summary

• #get(ptr) ⇒ Object

  Get an object of type Field#type from memory pointed by ptr.

• #put(ptr, value) ⇒ nil

  Set value into memory pointed by ptr.

Methods inherited from Field

#alignment, #initialize, #name, #offset, #size, #type

Constructor Details

This class inherits a constructor from FFI::StructLayout::Field

Instance Method Details

#get(ptr) ⇒ Object

Get an object of type Field#type from memory pointed by ptr.

Parameters:

• ptr (AbstractMemory) —

  pointer on a Type::Struct

Returns:

• (Object)

# File 'lib/ffi/struct.rb', line 59

def get(ptr)
  type.find(ptr.get_int(offset))
end

#put(ptr, value) ⇒ nil

Set value into memory pointed by ptr.

Parameters:

• ptr (AbstractMemory) —

  pointer on a Type::Struct

• value

Returns:

• (nil)

# File 'lib/ffi/struct.rb', line 67

def put(ptr, value)
  ptr.put_int(offset, type.find(value))
end