[Bug libstdc++/91156] The associated Laguerre polynomial should allow negative arguments.

[emsr at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91156

--- Comment #2 from emsr at gcc dot gnu.org ---
Created attachment 46598
  --> https://gcc.gnu.org/bugzilla/attachment.cgi?id=46598&action=edit
Obvious patch...

2019-07-14  Edward Smith-Rowland  <3dw...@verizon.net>

        * libstdc++-v3/include/tr1/poly_laguerre.tcc: Revove check for x >= 0.
        * libstdc++-v3/testsuite/special_functions/
        01_assoc_laguerre/check_value.cc: Extend testing to negative arguments.
        * libstdc++-v3/testsuite/special_functions/
        16_laguerre/check_value.cc: Ditto.
        * libstdc++-v3/testsuite/tr1/5_numerical_facilities/special_functions/
        01_assoc_laguerre/check_value.cc: Ditto.
        * libstdc++-v3/testsuite/tr1/5_numerical_facilities/special_functions/
        18_laguerre/check_value.cc: Ditto.