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--- !ruby/object:RI::MethodDescription 
aliases: []

block_params: 
comment: 
- !ruby/struct:SM::Flow::P 
  body: Pushes back one character (passed as a parameter) onto <b>strio</b> such that a subsequent buffered read will return it. Pushing back behind the beginning of the buffer string is not possible. Nothing will be done if such an attempt is made. In other case, there is no limitation for multiple pushbacks.
full_name: StringIO#ungetc
is_singleton: false
name: ungetc
params: |
  strio.ungetc(integer)   -> nil

visibility: public