On Mon, Jul 09, 2012 at 03:18:46PM +0100, Paul A. Bristow wrote:
I note that the test of ztest_max_digits10 and zztest_max_digits10 in
http://www.boost.org/development/tests/trunk/developer/math.html
both fail for these platforms.
ztest_max_digits10 tests of native std::numeric_limits<>::max_digits10 is supported. zztest_max_digits10 test if BOOST_NO_NUMERIC_LIMITS_LOWEST is a proxy to signal support.
where using std::numeric_limits<>::max_digits10 should be possible using BOOST_NO_NUMERIC_LIMITS_LOWEST as a proxy
for Clang the messages are
In file included from ../libs/math/test/zztest_max_digits10.cpp:27: In file included from ../boost/config.hpp:40: ../boost/config/select_stdlib_config.hpp:18:12: fatal error: 'cstddef' file not found # include <cstddef>
In file included from ../libs/math/test/ztest_max_digits10.cpp:27: In file included from ../boost/config.hpp:40: ../boost/config/select_stdlib_config.hpp:18:12: fatal error: 'cstddef' file not found
or for Cray CC-1353 crayc++: INTERNAL File = /opt/gcc/4.4.4/snos/include/g++/bits/move.h, Line = 34 CIF Error
#include <cstddef> ^ This appears to be a problem in the config - a missing include.
A user complained on the IRC the other day about <cstddef> being missing on his FreeBSD system when using libc++. It turned out that he had forgotten to set WITH_LIBCPLUSPLUS=yes for his system, as advised in [1]. <cstddef> has been in the standard since at least C++03, so if your toolchain is missing it, there's something properly wrong with it. I see now that the clang in the test link is on darwin, but it still smells of mis-deployment. [1] http://lists.freebsd.org/pipermail/freebsd-stable/2012-May/067645.html -- Lars Viklund | zao@acc.umu.se