two extra casts to integer64 in two constructors

[eddelbuettel]

No description provided.

[codecov-io]

Codecov Report

Merging #36 into master will not change coverage.
The diff coverage is 100%.

@@          Coverage Diff          @@
##           master    #36   +/-   ##
=====================================
  Coverage     100%   100%           
=====================================
  Files           1      1           
  Lines          90     90           
=====================================
  Hits           90     90

Impacted Files	Coverage Δ
R/nanotime.R	100% <100%> (ø)	⬆️

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