On 13.7.2013 13:12, David Chisnall wrote:
On 12 Jul 2013, at 22:47, "O. Hartmann" <ohart...@zedat.fu-berlin.de> wrote:
Obviously not really fixed, but even worse:
if I use in C code (C99, using clang 3.3 on FreeBSD 10.0-CURRENT/amd64
revision 253287) isnan(x) where x is a "const double", I receive now
the following error (which doesn't appear on previous versions):
Thanks. This is now fixed, however the _Generic() usage that we had there is
also present in tgmath.h, and so this file will also need to be fixed in the
same way.
I've now tested the macros with clang/c99, clang/c11, clang/c++98 and
clang/c++11, and gcc/c89 and they all seem to work for unqualified, const,
volatile, and const-volatile qualified types.
I've added Ed to the cc: list, as he wrote this code in tgmath.h.
David
Instead of listing all possible type qualifier combinations (like in
r253319), how about using a comma operator to strip away type
qualifiers? Since only the result type of the expression matters and it
isn't evaluated at all.
like:
#define __fp_type_select(x, f, d, ld) _Generic((0,(x)),
Pasi
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