* Add are_tagged_arguments_mp11 and is_argument_pack_mp11 metafunctions when Boost.MP11 is usable.
* Predicate requirements can be encoded as Boost.MP11-style quoted metafunctions as well as by MPL binary metafunction classes.
* Argument packs qualify as Boost.MP11-style lists as well as MPL sequences.
* Internal components and test programs use Boost.MP11 and C++11 type traits vice MPL and Boost.TypeTraits when Boost.MP11 is usable.
User library tests have been reporting numerous failures due to internal compiler errors that occur when perfect forwarding is unsupported. Setting BOOST_PARAMETER_EXPONENTIAL_OVERLOAD_THRESHOLD_ARITY to zero eliminates these failures. By doing this in Boost.Parameter, we relieve user code of the burden of doing this in their end. The trade-off is that our own tests need to define BOOST_PARAMETER_EXPONENTIAL_OVERLOAD_THRESHOLD_ARITY explicitly in order to take advantage of the benefits of not having to wrap boost::ref() or std::ref() around non-const lvalues. As this was always a C++03 workaround, the change should be worth the trade-off.
On an unrelated note, Travis Cl just deprecated "sudo: false". See <https://blog.travis-ci.com/2018-10-04-combining-linux-infrastructures>.
<boost/parameter/parameters.hpp>:
* Add preprocessor conditional statement to prevent generation of ill-formed function call operator overloads.
"test/maybe.cpp"
"test/singular.cpp"
"test/tutorial.cpp"
"test/sfinae.cpp"
"test/earwicker.cpp"
* Replace BOOST_PARAMETER_KEYWORD statements with BOOST_PARAMETER_NAME statements.
"test/optional_deduced_sfinae.cpp"
"test/normalized_argument_types.cpp"
"test/literate/*.cpp"
* Use Boost.Core.LightweightTest where int main() is available.
* Replace assert statements with BOOST_TEST_EQ statements.
"test/basics.hpp"
* Remove preprocessor statements regarding borland, gcc-2, and msvc workarounds.
"test/ntp.cpp"
"test/sfinae.cpp"
"test/earwicker.cpp"
"test/normalized_argument_types.cpp"
"test/basics.hpp"
* Add preprocessor conditional statement to #error out if BOOST_PARAMETER_MAX_ARITY is set to an insufficient value.
"test/basics.cpp"
"test/deduced.cpp"
"test/macros.cpp"
"test/preprocessor.cpp"
"test/preprocessor_deduced.cpp"
* Replace S and char const* expressions with boost::container::string expressions.
* Uncomment any code that fails to compile, but add preprocessor conditional statement so that test suites can incorporate compile-fail statements regarding the code in question.
* Ensure that int main() returns boost::process_errors().
"test/literate/deduced-template-parameters0.cpp":
"test/literate/exercising-the-code-so-far0.cpp":
* Enclose BOOST_MPL_ASSERT statements within MPL_TEST_CASE block.
"test/literate/defining-the-keywords1.cpp":
* Add graphs::tag::graph::qualifier type definition because perfect forwarding code will check for it.
* Replace deprecated keyword::get() invocation with keyword::instance invocation.
test/Jamfile.v2:
* Add modifier <define>BOOST_PARAMETER_MAX_ARITY=# to run, run-fail, compile, and compile-fail statements to conserve compiler memory usage on GitHub's side.
* Add modifier <preserve-target-tests>off to run and run-fail statements to conserve executable space on GitHub's side.
* Separate bpl-test statement into its own target, parameter_python_test, which fails on xcode8.3 as well as on mingw and msvc compilers with address-model=64.
* The next commit (which will implement perfect forwarding) will subsume test/literate/Jamfile.v2 into this file. Strangely enough, attempting to do so now will result in compiler errors.
.travis.yml:
* Add g++-4.7, g++-4.8, g++-4.9, clang++-3.5, clang++-3.6, clang++-3.7, clang++-3.8, clang++-3.9, clang++-4.0, xcode7.3, and xcode8.3 compiler configurations.
* Split compiler configurations by available CXXSTD values. (This will keep the job times within limits for the next commit.)
* Ensure that the xcode8.3 compiler configurations exclude parameter_python_test from the test suite.
appveyor.yml:
* Add compiler configurations that support address-model=64 to the test matrix.
* Ensure that the new configurations exclude parameter_python_test from the test suite.
