Commit Graph

6 Commits

Author SHA1 Message Date
Phil Nash 56e1075613 Introduced ReusableStringStream and removed all uses of std::ostringstream from the main path
ReusableStringStream holds a std::ostringstream internally, but only exposes the ostream interface.
It caches a pool of ostringstreams in a vector which is currently global, but will be made thread-local.

Altogether this should enable both runtime and compile-time benefits. although more work is needed to realise the compile time opportunities.
2017-11-07 18:01:10 +00:00
Martin Hořeňovský 22ac9d2184 Approx cleanup: More tests, INFINITY handling, etc 2017-11-01 07:30:11 +01:00
Pfiffikus 00af677577 Approx rework: default scale == 0, epsilon applies to Approx::value
Also adds check to Approx::epsilon that the new epsilon has a valid
(ie one between 0 and 1)

Based on
http://realtimecollisiondetection.net/blog/?p=89
https://randomascii.wordpress.com/2012/02/25/comparing-floating-point-numbers-2012-edition/
https://docs.oracle.com/cd/E19957-01/806-3568/ncg_goldberg.html
https://en.wikipedia.org/wiki/Approximation_error#Formal_Definition

The given epsilon should refer to the target value, otherwise
the result would be unexpected, e.g. 101.02 == Approx(100).epsilon(0.01)
is true.
The default scale should be invisible, thus,
e.g. 101.01 == Approx(100).epsilon(0.01) gets false.
Finally even 101.000001 == Approx(100).epsilon(0.01) is false
2017-10-31 15:43:42 +01:00
Martin Hořeňovský 11f716f28d Make Approx::margin inclusive
Fixes #952, related to #980
2017-10-31 14:49:00 +01:00
Phil Nash 2eb93f47f7 enclosed more min/ max in parentheses to default MFC macros 2017-10-13 13:46:39 +01:00
Phil Nash c5608f0202 Changed all .hpp extensions to .h where there is now a corresponding .cpp 2017-09-07 11:24:33 +01:00