Re: [boost] [test] Floating point comparison update

Subject: Re: [boost] [test] Floating point comparison update
From: John Maddock (john_at_[hidden])
Date: 2008-12-24 04:49:25

Gennadiy Rozental wrote:
>> Hi,
>> 
>> I've checked in 2 changes to the floating point comparison tools.
>> 
>> 1. BOOST_CHECK_CLOSE now can compare values of different types:
>> 
>>     BOOST_CHECK_CLOSE( 2, 2.1, 6 ); // compare and and double
>>     BOOST_CHECK_CLOSE( 2.1, 2, 6 ); // compare double and int
>>     BOOST_CHECK_CLOSE( 2.1, 2.f, 6 ); // compare double and float
>> 
>> 2. Floating point comparison tools now report difference if any:
>> 
>>     BOOST_CHECK_CLOSE( 2, 2.1, 3 ) will lead to:
>> 
>> difference{4.7619%} between 2{2} and 2.1{2.1} exceeds 3%
>> 
>>     BOOST_CHECK_CLOSE_FRACTION( 2, 2.1, 0.04 ) will lead to:
>> 
>> difference{0.047619} between 2{2} and 2.1{2.1} exceeds 0.04
>> 
>> Any comments appreciated,

Yeh!

Thanks Gennadiy, that'll be a big help,

John.