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U:RDoc::AnyMethod[iI"ungetbyte:ETI"IO#ungetbyte;TF: privateo:RDoc::Markup::Document: @parts[o: RDoc::Markup::Paragraph; [ I"BPushes back bytes (passed as a parameter) onto ios, ;TI":such that a subsequent buffered read will return it. ;TI"KIt is only guaranteed to support a single byte, and only if ungetbyte ;TI"Nor ungetc has not already been called on ios since the previous ;TI"7read of at least a single byte from ios. ;TI"GHowever, it can support additional bytes if there is space in the ;TI"%internal buffer to allow for it.;To: RDoc::Markup::BlankLine o:RDoc::Markup::Verbatim; [ I"5f = File.new("testfile") #=> #
;TI")b = f.getbyte #=> 0x38
;TI"(f.ungetbyte(b) #=> nil
;TI")f.getbyte #=> 0x38
;T: @format0o;
; [I"PIf given an integer, only uses the lower 8 bits of the integer as the byte ;TI"
to push.;T@o; ; [I"5f = File.new("testfile") #=> #
;TI"(f.ungetbyte(0x102) #=> nil
;TI"(f.getbyte #=> 0x2
;T;
0o;
; [I"MCalling this method prepends to the existing buffer, even if the method ;TI"(has already been called previously:;T@o; ; [ I"5f = File.new("testfile") #=> #
;TI"(f.ungetbyte("ab") #=> nil
;TI"(f.ungetbyte("cd") #=> nil
;TI",f.read(5) #=> "cdab8"
;T;
0o;
; [I">Has no effect with unbuffered reads (such as IO#sysread).;T:
@fileI" io.c;T:0@omit_headings_from_table_of_contents_below0I"Cios.ungetbyte(string) -> nil
ios.ungetbyte(integer) -> nil
;T0[ I" (p1);T@1FI"IO;TcRDoc::NormalClass00