Fixed bug in "ToExponentAndMantissa" when negative exponents where created.
Fixed bug in "ToExponentAndMantissa" when negative exponents where created.

Unary minus where applied to an unsigned type.

LepelTsmok/benchmark,google/benchmark,LepelTsmok/benchmark,everbase/benchmark,xlqian/benchmark,nickhutchinson/benchmark-cxx03,nickhutchinson/benchmark,LepelTsmok/benchmark,nickhutchinson/benchmark-cxx03,codygray/benchmark,disconnect3d/benchmark,mockingbirdnest/benchmark,google/benchmark,fuchsia-mirror/third_party-benchmark,google/benchmark,chemhack/benchmark,mockingbirdnest/benchmark,fuchsia-mirror/third_party-benchmark,nickhutchinson/benchmark-cxx03,fuchsia-mirror/third_party-benchmark,chemhack/benchmark,nickhutchinson/benchmark,chemhack/benchmark,efcs/benchmark,efcs/benchmark,efcs/benchmark,efcs/benchmark,everbase/benchmark,nickhutchinson/benchmark,ntx-/benchmark,eliben/benchmark,codygray/benchmark,fuchsia-mirror/third_party-benchmark,everbase/benchmark,disconnect3d/benchmark,nickhutchinson/benchmark-cxx03,xlqian/benchmark,xlqian/benchmark,everbase/benchmark,codygray/benchmark,LepelTsmok/benchmark,disconnect3d/benchmark,ntx-/benchmark,codygray/benchmark,ntx-/benchmark,eliben/benchmark,xlqian/benchmark,mockingbirdnest/benchmark,disconnect3d/benchmark,ntx-/benchmark,chemhack/benchmark,eliben/benchmark,nickhutchinson/benchmark,eliben/benchmark,mockingbirdnest/benchmark