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MKRGSM : GSMUDP.peek()

peek()

Read a byte from the file without advancing to the next one. That is, successive calls to peek() will return the same value, as will the next call to read().

This function inherited from the Stream class. See the Stream class main page for more information.

Syntax

GSMUDP.peek()

Parameters

none

Returns

  • b: the next byte or character
  • -1: if none is available


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