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srand-c.ri
U:RDoc::AnyMethod[iI" srand:ETI"Random::srand;TT: publico:RDoc::Markup::Document: @parts[ o: RDoc::Markup::Paragraph; [I"LSeeds the system pseudo-random number generator, Random::DEFAULT, with ;TI"4+number+. The previous seed value is returned.;To: RDoc::Markup::BlankLine o; ; [ I"KIf +number+ is omitted, seeds the generator using a source of entropy ;TI"Rprovided by the operating system, if available (/dev/urandom on Unix systems ;TI"Por the RSA cryptographic provider on Windows), which is then combined with ;TI"5the time, the process id, and a sequence number.;T@o; ; [I"Osrand may be used to ensure repeatable sequences of pseudo-random numbers ;TI"Rbetween different runs of the program. By setting the seed to a known value, ;TI"7programs can be made deterministic during testing.;T@o:RDoc::Markup::Verbatim; [ I"Ksrand 1234 # => 268519324636777531569100071560086917274 ;TI"L[ rand, rand ] # => [0.1915194503788923, 0.6221087710398319] ;TI",[ rand(10), rand(1000) ] # => [4, 664] ;TI"(srand 1234 # => 1234 ;TI"K[ rand, rand ] # => [0.1915194503788923, 0.6221087710398319];T: @format0: @fileI" random.c;T:0@omit_headings_from_table_of_contents_below0I"1srand(number = Random.new_seed) -> old_seed ;T0[ I" (*args);T@"FI" Random;TcRDoc::NormalClass00