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| -rw-r--r-- | doc/UsersGuide/UtilityRoutines.tex | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/doc/UsersGuide/UtilityRoutines.tex b/doc/UsersGuide/UtilityRoutines.tex index 77335b79..cdb05254 100644 --- a/doc/UsersGuide/UtilityRoutines.tex +++ b/doc/UsersGuide/UtilityRoutines.tex @@ -196,12 +196,12 @@ if (Util_TableGetReal(handle, &pi_value, "pi") < 0) As well as a single numbers (or characters or pointers), tables can also store 1-dimensional arrays of numbers (or characters or pointers).%%% \footnote{%%% - The table makes (stores) a \emph{copy} of the array - you pass in, so you probably shouldn't use tables to - store really big arrays like grid functions. But it's - fine to store things like parameters and coefficients. - If you do have a really big array, consider storing - a pointer to it.%%% + Note that the table makes (stores) a \emph{copy} of the array + you pass in, so it's somewhat inefficient to store a large array + (e.g.~a grid function) this way. If this is a problem, consider + storing a \texttt{CCTK\_POINTER} (pointing to the array) in the table + instead. (Of course, this requires that you ensure that the pointed-to + data is still valid whenever that \texttt{CCTK\_POINTER} is used.) }%%% For example (continuing the previous example): |