Returns true if stat is writable by the real user id of this process.
File.stat("testfile").writable_real? #=> true
If stat is writable by others, returns an integer representing the file permission bits of stat. Returns nil otherwise. The meaning of the bits is platform dependent; on Unix systems, see stat(2).
m = File.stat("/tmp").world_writable? #=> 511 sprintf("%o", m) #=> "777"
Same as executable?, but tests using the real owner of the process.
Returns serialized iseq binary format data as a String object. A corresponding iseq object is created by RubyVM::InstructionSequence.load_from_binary() method.
String extra_data will be saved with binary data. You can access this data with RubyVM::InstructionSequence.load_from_binary_extra_data(binary).
Note that the translated binary data is not portable. You can not move this binary data to another machine. You can not use the binary data which is created by another version/another architecture of Ruby.
Returns the number of the first source line where the instruction sequence was loaded from.
For example, using irb:
iseq = RubyVM::InstructionSequence.compile('num = 1 + 2') #=> <RubyVM::InstructionSequence:<compiled>@<compiled>> iseq.first_lineno #=> 1
Collapses the row into a simple Hash. Be warned that this discards field order and clobbers duplicate fields.
Returns the row as a CSV String. Headers are not used. Equivalent to:
csv_row.fields.to_csv( options )
Returns the table as a complete CSV String. Headers will be listed first, then all of the field rows.
This method assumes you want the Table.headers(), unless you explicitly pass :write_headers => false.
Convert an object reference id to an object.
This implementation looks up the reference id in the local object space and returns the object it refers to.
Convert an object into a reference id.
This implementation returns the object’s __id__ in the local object space.
Convert a dRuby reference to the local object it refers to.
Convert a local object to a dRuby reference.
Has a method been included in the list of insecure methods?
Coerce an object to a string, providing our own representation if to_s is not defined for the object.
Convert an object reference id to an object.
This implementation looks up the reference id in the local object space and returns the object it refers to.
Convert an object into a reference id.
This implementation returns the object’s __id__ in the local object space.
Returns [eigenvector_matrix, eigenvalue_matrix, eigenvector_matrix_inv]
Returns L, U, P in an array
Setter for the read_timeout attribute.
Sends a GET request to the target and returns the HTTP response as a Net::HTTPResponse object. The target can either be specified as (uri), or as (host, path, port = 80); so:
res = Net::HTTP.get_response(URI('http://www.example.com/index.html')) print res.body
or:
res = Net::HTTP.get_response('www.example.com', '/index.html') print res.body
The default port to use for HTTP requests; defaults to 80.