[PATCH] D13289: [libc++] Provide additional templates for valarray transcendentals that satisfy the standard synopsis

[Petr Pavlu via cfe-commits]

petpav01 updated this revision to Diff 42506.
petpav01 added a comment.

Updated patch adds more tests and fixes a problem introduced in the previous revision where templates taking `__val_expr` were not correctly protected by SFINAE from immediate context (it introduced same problem with explicit template parameters that I am trying to solve).

@Eric: Could you please send me an example that shows the problem with the ranking in overload resolution so I can add a test for it too? I would like to understand this case because if it is not needed then a number of `atan2()` and `pow()` templates can be reduced (to the same amount as in the original patch).


http://reviews.llvm.org/D13289

Files:
  include/valarray
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/abs_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/acos_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/asin_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_valarray_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_valarray_value.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan2_value_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/atan_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/cos_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/cosh_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/exp_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/log10_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/log_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_valarray_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_valarray_value.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/pow_value_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sin_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sinh_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/sqrt_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/tan_valarray.pass.cpp
  test/std/numerics/numarray/valarray.nonmembers/valarray.transcend/tanh_valarray.pass.cpp

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