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GSL::Vector to YAML
# http://tech.natemurray.com/2007/03/custom-yaml-emitter.html
require 'gsl'
require 'yaml'
v = GSL::Vector.alloc 10
0.upto(9) do |n| v[n] = n* 10 end
class GSL::Vector
def to_yaml_type; "!ruby.com,2011/gsl-vector"; end
def to_yaml( opts = {} )
YAML.quick_emit( self.object_id, opts ) do |out|
out.seq( taguri, to_yaml_style ) do |map|
to_a.each_with_index { |v, i| map.add(v) }
end
end
end
end
YAML::add_domain_type( "ruby.com,2011", "gsl-vector") do |type, val|
vec = GSL::Vector.alloc val.length
val.each_with_index { |v, i| vec[i] = v }
vec
end
puts v == YAML.load(YAML.dump(v))
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