The
BOOST_PP_IS_ITERATING
macro is defined when a
file-iteration
is in progress.
Usage
#if !defined(
BOOST_PP_IS_ITERATING
) // ...
Remarks
If a
file-iteration
is in progress, this macro is defined as
1
. This means that the following will also work:
#if !
BOOST_PP_IS_ITERATING
// ...
This macro is defined to guard a file from infinite inclusion.