Boost C++ Libraries: Ticket #8272: BOOST_REQUIRE_CLOSE fails to compile with boost::multiprecision::cpp_dec_float_100

owner changed; cc set

John Maddock — Mon, 11 Mar 2013 13:31:29 GMT

cc pbristow@… added
owner changed from John Maddock to Gennadiy Rozental

Boost.Test knows nothing of expression template types internally and so can't cope with these. The fixes are reasonably easy, but it's up to Boost.Test's maintainer to decide whether to support this use case or not. One fix on your side is to cast arguments to Boost.Test macros to a multiprecision type that has expression template support turned off.

Gennadiy, I'm attaching patches and a test case (which IMO belongs in the Boost.Test test suite if you choose to approve the patches), can you take a look?

Also adding Paul Bristow in the loop, as I know he hit this one too.

attachment set

John Maddock — Mon, 11 Mar 2013 13:32:54 GMT

attachment → test_expression_template_fpt.cpp

Test cases.

attachment set

John Maddock — Thu, 21 Mar 2013 13:36:34 GMT

attachment → test_multiprecision.patch

Patches to make Boost.Test work with expression template types.

component changed

John Maddock — Thu, 21 Mar 2013 13:39:01 GMT

component multiprecision → test

Updated patch (adds missing #include plus test case and Jamfile edits).

Tested OK with msvc-9 and 10. GCC-4.7.2, and Intel-13.

status, milestone changed; resolution set

Raffi Enficiaud — Tue, 07 Jul 2015 08:58:36 GMT

status new → closed
resolution → fixed
milestone To Be Determined → Boost 1.59.0

Duplicates #11054 - added the test case fp-multiprecision-comparison:

https://github.com/boostorg/test/blob/master/test/writing-test-ts/fp-multiprecision-comparison-test.cpp

testing the previous and BOOST_TEST API conformance with multiprecision.