[PATCH] D34518: [ADT] Add llvm::to_float

[Pavel Labath via Phabricator via llvm-commits]

labath created this revision.

The function matches the interface of llvm::to_integer, but as we are
calling out to a C library function (implementing it ourselves seemed
way too complicated), I let it take a Twine argument, so we can avoid a
string copy at least in some cases.

I add a test and replace a couple of existing uses of strtod with this
function.


https://reviews.llvm.org/D34518

Files:
  include/llvm/ADT/StringExtras.h
  lib/Support/CommandLine.cpp
  lib/Support/YAMLTraits.cpp
  unittests/ADT/StringExtrasTest.cpp

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