Pan ruochen wrote:
Hi All,
There is a header file in my project:
[...]
#if #abi(n32) || #abi(n64) || #abi(64) || #abi(eabi)
[...]
I can't find any explaination for the syntax '#abi(n32)' in gcc
manual. But gcc can still process this header file and takes the #else
branch during compilation.
So, how gcc deal with this header file?
Those are preprocessor assertions:
http://gcc.gnu.org/onlinedocs/gcc-4.3.2/cpp/Assertions.html
I don't believe that the #abi assertion is a built-in in any stock GCC
version, so they are probably defined in some other header file in your
program.
David Daney
