Update MultiComponentStateModeCalculator.cxx; sqrt is not constexpr

sqrt is not constexpr by default, although gcc accepts it, clang chokes. The cmath constants M_2_SQRTPI and M_SQRT2 can be used, though.

pinging @wlampl

This merge request affects 1 package:

• Tracking/TrkFitter/TrkGaussianSumFilter

Adding @amorley as watcher

added Egamma Tracking master review-pending-level-1 labels

added 1 commit

• 34b6ff83 - Update MultiComponentStateModeCalculator.cxx

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This merge request affects 1 package:

• Tracking/TrkFitter/TrkGaussianSumFilter

Adding @amorley as watcher

CI Result FAILURE (hash 77d6e6f4)

	Athena	AthSimulation	AnalysisBase	AthGeneration
externals
cmake
make
required tests
optional tests

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Athena: number of compilation errors 1, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 16688]

forgot a ; in the first go..

CI Result SUCCESS (hash 34b6ff83)

	Athena	AthSimulation	AnalysisBase	AthGeneration
externals
cmake
make
required tests
optional tests

Full details available on this CI monitor view
Athena: number of compilation errors 0, warnings 0
AthSimulation: number of compilation errors 0, warnings 0
AnalysisBase: number of compilation errors 0, warnings 0
AthGeneration: number of compilation errors 0, warnings 0
For experts only: Jenkins output [CI-MERGE-REQUEST-CC7 16689]

Clear, approving.

Pavol [as L2 MR shifter]

added review-approved label and removed review-pending-level-1 label

merged

mentioned in commit b0d9ebee

added sweep:ignore label