U:RDoc::AnyMethod[iI"compare_by_identity:ETI"Hash#compare_by_identity;TF:publico:RDoc::Markup::Document:@parts[o:RDoc::Markup::Paragraph;	[I">Sets +self+ to consider only identity in comparing keys; ;TI"Htwo keys are considered the same only if they are the same object; ;TI"returns +self+.;To:RDoc::Markup::BlankLineo;
;	[I"EBy default, these two object are considered to be the same key, ;TI"!so +s1+ will overwrite +s0+:;To:RDoc::Markup::Verbatim;	[I"s0 = 'x'
;TI"s1 = 'x'
;TI"h = {}
;TI"'h.compare_by_identity? # => false
;TI"h[s0] = 0
;TI"h[s1] = 1
;TI"h # => {"x"=>1}
;T:@format0o;
;	[I"SAfter calling \#compare_by_identity, the keys are considered to be different, ;TI"/and therefore do not overwrite each other:;To;;	[I"h = {}
;TI"#h.compare_by_identity # => {}
;TI"&h.compare_by_identity? # => true
;TI"h[s0] = 0
;TI"h[s1] = 1
;TI"h # => {"x"=>0, "x"=>1};T;
0:
@fileI"hash.c;T:0@omit_headings_from_table_of_contents_below0I"&hash.compare_by_identity -> self
;T0[I"();T@*FI"	Hash;TcRDoc::NormalClass00