/usr/share/doc/ruby-gsl/examples/math/inf_nan.rb is in ruby-gsl 2.1.0.3+dfsg1-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 | #!/usr/bin/env ruby
require("gsl")
include GSL
puts("GSL_POSINF")
p GSL::POSINF
p GSL::POSINF.class
p isinf(GSL::POSINF)
p isinf?(GSL::POSINF)
p isnan(GSL::POSINF)
p isnan?(GSL::POSINF)
p finite(GSL::POSINF)
p finite?(GSL::POSINF)
puts("GSL_NEGINF")
p GSL::NEGINF
p GSL::NEGINF.class
p isinf(GSL::NEGINF)
p isinf?(GSL::NEGINF)
p isnan(GSL::NEGINF)
p isnan?(GSL::NEGINF)
p finite(GSL::NEGINF)
p finite?(GSL::NEGINF)
puts("GSL_NAN")
p GSL::NAN
p GSL::NAN.class
p isinf(GSL::NAN)
p isinf?(GSL::NAN)
p isnan(GSL::NAN)
p isnan?(GSL::NAN)
p finite(GSL::NAN)
p finite?(GSL::NAN
)
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