[Boost-users] Boost.PP: maximum length of a preprocessor macro, of PP

Subject: [Boost-users] Boost.PP: maximum length of a preprocessor macro, of PP
From: Hicham Mouline (hicham_at_[hidden])
Date: 2010-06-27 11:10:18

Hello

I assign the list of all directories the names of which starts with a
pattern like   pattern_.... to a cmake variable which I then pass as a
preprocessor macro:

FILE(GLOB MYPROJECT_LIST_SYSTEMS RELATIVE ${CMAKE_SOURCE_DIR} system_*)

MYPROJECT_LIST_SYSTEMS is then a cmake "list", a string with semicolon
separators.

I will then define a preprocessor macro MYPROJECT_LIST_SYSTEMS with the same
contents.

1. What is the maximum length of a preprocessor macro (g++4.4, msvc2008/10)?
2. I will create in a source file a list of class instances all with the
same names in the passed macro.
I reckon I can use a PP sequence, list, tuple or array. Is there any max
length here?
What is the fastest way in terms of PP time?

Regards,