|Copyright||(c) The University of Glasgow 2001|
|License||BSD-style (see the file libraries/base/LICENSE)|
|Portability||non-portable (uses Data.Array.MArray)|
A storable array is an IO-mutable array which stores its contents in a contiguous memory block living in the C heap. Elements are stored according to the class
Storable. You can obtain the pointer to the array contents to manipulate elements from languages like C.
It is similar to
IOUArray but slower. Its advantage is that it's compatible with C.
The array type
The pointer to the array contents is obtained by
withStorableArray. The idea is similar to
ForeignPtr (used internally here). The pointer should be used only during execution of the
IO action retured by the function passed as argument to
If you want to use it afterwards, ensure that you
touchStorableArray after the last use of the pointer, so the array is not freed too early.
© The University of Glasgow and others
Licensed under a BSD-style license (see top of the page).