Linker error

[NAThompson]

Got the following linker error when trying to use this repo:

➜  math git:(develop) ✗ make tanh_sinh_test_errors.x
g++-10 -g --std=gnu++17 -ffast-math -fno-finite-math-only -march=native -Wfatal-errors -MMD -fvisibility=hidden -O3 -I./ -I./include -I/usr/local/include -o tanh_sinh_test_errors.x tanh_sinh_test_errors.cpp
Undefined symbols for architecture x86_64:
  "__Z9get_testsv", referenced from:
      _main in ccoFfLO8.o
ld: symbol(s) not found for architecture x86_64
collect2: error: ld returned 1 exit status

I copied the .cpp file into the .hpp and it fixed it. The parse doesn't seem that unreasonable so might be easier.

[NAThompson]

FYI: Just tried the std::fma and Kahan summation on this repo; couldn't observe any improvement sadly.

[jzmaddock]

It's in tanh_sinh_test_cases.cpp

[jzmaddock]

FYI: Just tried the std::fma and Kahan summation on this repo; couldn't observe any improvement sadly.

This does improve things: boostorg/math#714 for the pathological cases.

I think I may have spotted another bug too...