1#@!#!123s

: / proc / self / root / opt / alt / ruby34 / share / ri / system / IO / Buffer /
Filename : copy-i.ri
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U:RDoc::AnyMethod[iI"	copy:ETI"IO::Buffer#copy;TF:publico:RDoc::Markup::Document:@parts[o:RDoc::Markup::Paragraph;	[I"LEfficiently copy from a source IO::Buffer into the buffer, at +offset+ ;TI"Dusing +memmove+. For copying String instances, see #set_string.;To:RDoc::Markup::BlankLine�o:RDoc::Markup::Verbatim;	[I"!buffer = IO::Buffer.new(32)
;TI"
# =>
;TI"4# #<IO::Buffer 0x0000555f5ca22520+32 INTERNAL>
;TI"T# 0x00000000  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
;TI"W# 0x00000010  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................  *
;TI"
;TI",buffer.copy(IO::Buffer.for("test"), 8)
;TI"%# => 4 -- size of buffer copied
;TI"buffer
;TI"
# =>
;TI"4# #<IO::Buffer 0x0000555f5cf8fe40+32 INTERNAL>
;TI"T# 0x00000000  00 00 00 00 00 00 00 00 74 65 73 74 00 00 00 00 ........test....
;TI"V# 0x00000010  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................ *
;T:@format0o;
;	[I"I#copy can be used to put buffer into strings associated with buffer:;T@o;;	[
I"string = "data:    "
;TI"# => "data:    "
;TI"1buffer = IO::Buffer.for(string) do |buffer|
;TI".  buffer.copy(IO::Buffer.for("test"), 5)
;TI"	end
;TI"# => 4
;TI"string
;TI"# => "data:test"
;T;
0o;
;	[I"7Attempt to copy into a read-only buffer will fail:;T@o;;	[	I"$File.write('test.txt', 'test')
;TI"Rbuffer = IO::Buffer.map(File.open('test.txt'), nil, 0, IO::Buffer::READONLY)
;TI",buffer.copy(IO::Buffer.for("test"), 8)
;TI"D# in `copy': Buffer is not writable! (IO::Buffer::AccessError)
;T;
0o;
;	[I"KSee ::map for details of creation of mutable file mappings, this will ;TI"
work:;T@o;;	[
I":buffer = IO::Buffer.map(File.open('test.txt', 'r+'))
;TI",buffer.copy(IO::Buffer.for("boom"), 0)
;TI"# => 4
;TI"File.read('test.txt')
;TI"# => "boom"
;T;
0o;
;	[I"JAttempt to copy the buffer which will need place outside of buffer's ;TI"bounds will fail:;T@o;;	[I" buffer = IO::Buffer.new(2)
;TI",buffer.copy(IO::Buffer.for('test'), 0)
;TI"Z# in `copy': Specified offset+length is bigger than the buffer size! (ArgumentError)
;T;
0o;
;	[I"IIt is safe to copy between memory regions that overlaps each other. ;TI"`In such case, the data is copied as if the data was first copied from the source buffer to ;TI"]a temporary buffer, and then copied from the temporary buffer to the destination buffer.;T@o;;	[
I"!buffer = IO::Buffer.new(10)
;TI"%buffer.set_string("0123456789")
;TI"buffer.copy(buffer, 3, 7)
;TI"# => 7
;TI"buffer
;TI"
# =>
;TI"4# #<IO::Buffer 0x000056494f8ce440+10 INTERNAL>
;TI"M# 0x00000000  30 31 32 30 31 32 33 34 35 36                   0120123456;T;
0:
@fileI"io_buffer.c;T:0@omit_headings_from_table_of_contents_below0I"?copy(source, [offset, [length, [source_offset]]]) -> size
;T0[�I"(*args);T@XFI"Buffer;TcRDoc::NormalClass00