On Tue, 31 Jan 2012, Ludovic Courtès wrote:
Hi,
Chris Lattner <clatt...@apple.com> skribis:
On Jan 30, 2012, at 7:56 AM, Ludovic Courtès wrote:
Hello,
Chris Lattner <clatt...@apple.com> skribis:
If fact, some do:
http://clang.llvm.org/docs/LanguageExtensions.html#feature_check
That seems like a very useful approach to solve the problem.
The docs say that ‘__has_builtin’ & co. are macros. What do they expand to?
0 or 1.
I understand. To put it another way, how are they defined?
Compiler magic, like __LINE__ for instance? I am still not sure what you
are asking...
Interestingly enough:
$ cat q.c
__has_builtin
$ clang -E q.c
<segfault>
--
Marc Glisse
