7stud -- wrote:
> Clark Snowdall wrote:
>> Ok ... I'm not sure what the story is with this (perhaps I'm just
>> clueless).  But, when I do this:
>> 
>> class MutexTest
>>         def initialize
>>                 @lock = Mutex.new
>>         end
>> end
>> 
>> test = MutexTest.new
>> 
>> 
>> I get this:
>> 
>> mutex_test.rb:3:in `initialize': uninitialized constant MutexTest::Mutex
>> (NameError)
>>   from mutex_test.rb:7:in `new'
>>   from mutex_test.rb:7
>
>
> require 'thread'
> m = Mutex.new
> puts 'hello'
> 
> --output:--
> hello
> 
> 
> 
> See pickaxe2, p 696.

Also:

require 'thread'

arr = Object.constants
results = arr.find_all{|name| name[0,1]=="M"}
p results

--outuput:--
["Marshal", "Math", "Method", "MatchingData", "Mutex", "MatchData", 
"Module"]

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