id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
11571	Can't compile BOOST_TEST( ..., per_element() ) comparison of vector<string>	Tony Lewis <tonyelewis@…>	Raffi Enficiaud	"Thanks for the new BOOST_TEST() and per_element() tools, which look very useful.

Unfortunately, the following simple vector<string> example fails to compile under both `g++ -std=c++11` and `clang++ -std=c++11 -stdlib=libc++`.

{{{
#!cpp
#define BOOST_TEST_MODULE comp_str_mod

#include <boost/test/included/unit_test.hpp>

#include <string>
#include <vector>

BOOST_AUTO_TEST_CASE( comp_strs ) {
	std::vector<std::string> a{ ""ann"" };
	std::vector<std::string> b{ ""bry"" };

	BOOST_TEST( a == b, boost::test_tools::per_element() );
}
}}}

The core part of GCC's error message is:

{{{
error: ‘revert’ is not a member of ‘boost::test_tools::assertion::op::EQ<std::basic_string<char>, std::basic_string<char>, void>’
}}}

If I'm doing it wrong, is there any way we can make the compile errors and/or documentation clearer about avoiding this? Thanks."	Bugs	closed	Boost 1.60.0	test	Boost 1.59.0	Problem	fixed	test,BOOST_TEST,per_element,collections,string,vector