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opt
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alt
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ruby21
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share
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ri
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2.1.0
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system
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Fixnum
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//opt/alt/ruby21/share/ri/2.1.0/system/Fixnum/bit_length-i.ri
U:RDoc::AnyMethod[iI"bit_length:ETI"Fixnum#bit_length;TF:publico:RDoc::Markup::Document:@parts[o:RDoc::Markup::Paragraph; [I";Returns the number of bits of the value of <i>int</i>.;To:RDoc::Markup::BlankLine o; ; [ I"%"the number of bits" means that ;TI"Mthe bit position of the highest bit which is different to the sign bit. ;TI"0(The bit position of the bit 2**n is n+1.) ;TI"CIf there is no such bit (zero or minus one), zero is returned.;T@o; ; [I"AI.e. This method returns ceil(log2(int < 0 ? -int : int+1)).;T@o:RDoc::Markup::Verbatim; [I"&(-2**12-1).bit_length #=> 13 ;TI"&(-2**12).bit_length #=> 12 ;TI"&(-2**12+1).bit_length #=> 12 ;TI"%-0x101.bit_length #=> 9 ;TI"%-0x100.bit_length #=> 8 ;TI"%-0xff.bit_length #=> 8 ;TI"%-2.bit_length #=> 1 ;TI"%-1.bit_length #=> 0 ;TI"%0.bit_length #=> 0 ;TI"%1.bit_length #=> 1 ;TI"%0xff.bit_length #=> 8 ;TI"%0x100.bit_length #=> 9 ;TI"&(2**12-1).bit_length #=> 12 ;TI"&(2**12).bit_length #=> 13 ;TI"%(2**12+1).bit_length #=> 13;T:@format0: @fileI"numeric.c;T:0@omit_headings_from_table_of_contents_below0I"int.bit_length -> integer ;T0[ I"();T@)FI"Fixnum;TcRDoc::NormalClass00