Various test failures uncovered during local testing about type_traits

[pdimov]

msvc-11.0 failure edited out, was a local issue.

[jzmaddock]

I'm unable to reproduce with either cygwin-23 or cygwin-64, both are using the latest gcc-6.3.0-2: $ g++ -v Using built-in specs. COLLECT_GCC=g++ COLLECT_LTO_WRAPPER=/usr/lib/gcc/x86_64-pc-cygwin/6.3.0/lto-wrapper.exe Target: x86_64-pc-cygwin Configured with: /cygdrive/i/szsz/tmpp/gcc/gcc-6.3.0-2.x86_64/src/gcc-6.3.0/configure --srcdir=/cygdrive/i/szsz/tmpp/gcc/gcc-6.3.0-2.x86_64/src/gcc-6.3.0 --prefix=/usr --exec-prefix=/usr --localstatedir=/var --sysconfdir=/etc --docdir=/usr/share/doc/gcc --htmldir=/usr/share/doc/gcc/html -C --build=x86_64-pc-cygwin --host=x86_64-pc-cygwin --target=x86_64-pc-cygwin --without-libiconv-prefix --without-libintl-prefix --libexecdir=/usr/lib --enable-shared --enable-shared-libgcc --enable-static --enable-version-specific-runtime-libs --enable-bootstrap --enable-__cxa_atexit --with-dwarf2 --with-tune=generic --enable-languages=ada,c,c++,fortran,lto,objc,obj-c++ --enable-graphite --enable-threads=posix --enable-libatomic --enable-libcilkrts --enable-libgomp --enable-libitm --enable-libquadmath --enable-libquadmath-support --enable-libssp --enable-libada --disable-symvers --with-gnu-ld --with-gnu-as --with-cloog-include=/usr/include/cloog-isl --without-libiconv-prefix --without-libintl-prefix --with-system-zlib --enable-linker-build-id --with-default-libstdcxx-abi=gcc4-compatible Thread model: posix gcc version 6.3.0 (GCC) Can you check your exact gcc version and report back? Thanks, John.

…

On 09/07/2017 22:31, Peter Dimov wrote: This is what I have (CI_SUPPRESS_KNOWN_ISSUES has been defined): Cygwin g++ 6.3.0: |testing.capture-output ..\..\bin.v2\libs\type_traits\test\alignment_of_a2_test.test\gcc-cxx03-6.3.0\debug\alignment_of_a2_test.run ====== BEGIN OUTPUT ====== test\alignment_of_a2_test.cpp:95: The expression: "::boost::alignment_of<double>::value" had an invalid value (found 8, expected 4) test\alignment_of_a2_test.cpp:98: The expression: "::boost::alignment_of< ::boost::long_long_type>::value" had an invalid value (found 8, expected 4) EXIT STATUS: 2 ====== END OUTPUT ====== | |testing.capture-output ..\..\bin.v2\libs\type_traits\test\alignment_of_test.test\gcc-cxx03-6.3.0\debug\alignment_of_test.run ====== BEGIN OUTPUT ====== test\alignment_of_test.cpp:90: The expression: "::boost::alignment_of<double>::value" had an invalid value (found 8, expected 4) test\alignment_of_test.cpp:93: The expression: "::boost::alignment_of< ::boost::long_long_type>::value" had an invalid value (found 8, expected 4) EXIT STATUS: 2 ====== END OUTPUT ====== | (same for c++11, 14, 1z) msvc-11.0: |testing.capture-output ..\..\bin.v2\libs\type_traits\test\tricky_rvalue_test.test\msvc-11.0\debug\threading-multi\tricky_rvalue_test.run ====== BEGIN OUTPUT ====== test\tricky_rvalue_test.cpp:28: The expression: "(::boost::is_convertible<int&&, int&>::value)" had an invalid value (found 1, expected 0) test\tricky_rvalue_test.cpp:29: The expression: "(::boost::is_convertible<int(), int(&&)()>::value)" had an invalid value (found 0, expected 1) EXIT STATUS: 2 ====== END OUTPUT ====== | Cygwin clang++ 4.0.1 -std=c++1z: |clang-linux.compile.c++.without-pth ..\..\bin.v2\libs\type_traits\test\has_nothrow_destructor_test.test\clang-linux-cxx1z-4.0.1\debug\has_nothrow_destructor_test.obj In file included from test\has_nothrow_destructor_test.cpp:12: test/test.hpp:210:9: warning: 'const' qualifier on reference type 'r_type' (aka'int &') has no effect [-Wignored-qualifiers] typedef const r_type cr_type; ^~~~~~ test\has_nothrow_destructor_test.cpp:37:21: error: ISO C++1z does not allow dynamic exception specifications [-Wdynamic-exception-spec] ~throwing_base() throw(int); ^~~~~~~~~~ test\has_nothrow_destructor_test.cpp:37:21: note: use 'noexcept(false)' instead ~throwing_base() throw(int); ^~~~~~~~~~ noexcept(false) 1 warning and 1 error generated. | Appveyor has Cygwin: https://github.com/boostorg/system/blob/develop/appveyor.yml#L25 Travis has clang++ 4: https://github.com/boostorg/smart_ptr/blob/develop/.travis.yml#L479 Not sure about the msvc-11.0 one, as you have it on Appveyor. I could be missing an update. — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#38>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AEx5OCI4itfIBe-jRh85YdHzripsEglCks5sMUabgaJpZM4OSMWj>.

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[pdimov]

Odd.

C:\Projects\boost-git\boost\libs\type_traits>g++ -v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=/usr/lib/gcc/i686-pc-cygwin/6.3.0/lto-wrapper.exe
Target: i686-pc-cygwin
Configured with: /cygdrive/i/szsz/tmpp/gcc/gcc-6.3.0-2.i686/src/gcc-6.3.0/config
ure --srcdir=/cygdrive/i/szsz/tmpp/gcc/gcc-6.3.0-2.i686/src/gcc-6.3.0 --prefix=/
usr --exec-prefix=/usr --localstatedir=/var --sysconfdir=/etc --docdir=/usr/shar
e/doc/gcc --htmldir=/usr/share/doc/gcc/html -C --build=i686-pc-cygwin --host=i68
6-pc-cygwin --target=i686-pc-cygwin --without-libiconv-prefix --without-libintl-
prefix --libexecdir=/usr/lib --enable-shared --enable-shared-libgcc --enable-sta
tic --enable-version-specific-runtime-libs --enable-bootstrap --enable-__cxa_ate
xit --with-dwarf2 --with-arch=i686 --with-tune=generic --disable-sjlj-exceptions
 --enable-languages=ada,c,c++,fortran,lto,objc,obj-c++ --enable-graphite --enabl
e-threads=posix --enable-libatomic --enable-libcilkrts --enable-libgomp --enable
-libitm --enable-libquadmath --enable-libquadmath-support --enable-libssp --enab
le-libada --disable-symvers --with-gnu-ld --with-gnu-as --with-cloog-include=/us
r/include/cloog-isl --without-libiconv-prefix --without-libintl-prefix --with-sy
stem-zlib --enable-linker-build-id --with-default-libstdcxx-abi=gcc4-compatible
Thread model: posix
gcc version 6.3.0 (GCC)

C:\Projects\boost-git\boost\libs\type_traits>b2 test//alignment_of_test toolset=
gcc-cxx03
Performing configuration checks

    - 32-bit                   : yes (cached)
    - arm                      : no  (cached)
    - mips1                    : no  (cached)
    - power                    : no  (cached)
    - sparc                    : no  (cached)
    - x86                      : yes (cached)
    - symlinks supported       : no  (cached)
    - junctions supported      : yes (cached)
    - hardlinks supported      : yes (cached)
...patience...
...found 803 targets...
...updating 2 targets...
testing.capture-output ..\..\bin.v2\libs\type_traits\test\alignment_of_test.test
\gcc-cxx03-6.3.0\debug\alignment_of_test.run
====== BEGIN OUTPUT ======
test\alignment_of_test.cpp:90: The expression: "::boost::alignment_of<double>::v
alue" had an invalid value (found 8, expected 4)
test\alignment_of_test.cpp:93: The expression: "::boost::alignment_of< ::boost::
long_long_type>::value" had an invalid value (found 8, expected 4)

EXIT STATUS: 2
====== END OUTPUT ======

[pdimov]

Mystery solved, I use -std=c++03 and you use -std=gnu++03. The latter works, the former fails as above.

[jzmaddock]

Nope, just looked at this again with both 64 and 32 bit versions of mingw 6.3 and 7.2 and still can't reproduce :(

I do dimly remember that GCC's __alignof__ sometimes lies. So I think the thing for you to do is file a PR against intrinsics.hpp so that we don't use the intrinsic for the cases which don't work?