-----Original Message----- From: Boost [mailto:boost-bounces@lists.boost.org] On Behalf Of Gennadiy Rozental Sent: 26 April 2015 08:14 To: boost@lists.boost.org Subject: Re: [boost] [test] floating point comparison

Emil Dotchevski writes:

...

Hello,

Can someone please tell me exactly what do I need to include and which namespace to use to get exact same behavior as:

#include

bool check( float a, float b, float tolerance ) { using namespace boost::test_tools; return check_is_close(a,b,fraction_tolerance(tolerance)); }

(The above used to work with older Boost versions but no longer.)

Do you refer to the develop branch?

BOOST_TEST(a==b, tolerance);

should do the same. Or

BOOST_TEST(a==b);

if tolerance is set for test case.

As I have explained before, most recently about check_is_close, users would clearly like to use the code in #include outside Boost.Test. I have put some time into providing documentation to go in Boost.Math that demonstrate and explain how this can be done. It would be *really unhelpful* to remove this facility. Paul --- Paul A. Bristow Prizet Farmhouse Kendal UK LA8 8AB +44 (0) 1539 561830

On Sun, Apr 26, 2015 at 12:14 AM, Gennadiy Rozental wrote:

Emil Dotchevski writes:

...

Hello,

Can someone please tell me exactly what do I need to include and which namespace to use to get exact same behavior as:

#include

bool check( float a, float b, float tolerance ) { using namespace boost::test_tools; return check_is_close(a,b,fraction_tolerance(tolerance)); }

(The above used to work with older Boost versions but no longer.)

Do you refer to the develop branch?

BOOST_TEST(a==b, tolerance);

should do the same.

Yes, sorry -- I mean the development branch. Could you provide a replacement for the function above? Note that it returns a value, which isn't the same as BOOST_TEST. Also please indicate what headers need to be included. Emil

Raffi Enficiaud writes:

The corresponding equivalent code should be

bool check( float a, float b, float tolerance ) { using namespace boost::math::fpc; close_at_tolerance obj(tolerance);

close_at_tolerance<float> obj(tolerance);

return obj(a,b); }

Gennadiy

On Mon, Apr 27, 2015 at 9:42 PM, Emil Dotchevski wrote:

With

#include

bool check( float a, float b, float tolerance ) { using namespace boost::math::fpc; close_at_tolerance<float> obj(tolerance); obj(a,b); }

I get "type 'float' unexpected".

Please disregard the above. Thanks! Emil