Cactus Data Types

The Cactus grid variables and parameters are defined and declared using Cactus data types, to provide portability across platforms. The most important of these data types are described below, for a full description see Section B10.8. These data types should be used to declare local variables where needed, and to declare Cactus grid variables or parameters that need declarations.

CCTK_INT

default size 4 bytes

CCTK_REAL

default size 8 bytes