Standard Input/Output Library - University of Windsor

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IntroductionStreams and FILE objectsBufferingOpening a StreamReading and writing a streamStreams and FILE objectsOpening or creating a file → associating a stream with the file.fopen()The function fopen() returns a pointer to the a FILE object.A FILE object is a structure that contains all neededinformation to manage a stream:the file descriptor: a nonnegative integer used for theactual I/Oa pointer to a buffer for the streamthe size of the buffera count of the characters currently in the bufferan error flagan end-of-file flagNormally, an application software never needs to examine theFILE object.Standard Input/Output Library60-256 System Programming
BufferingIntroductionStreams and FILE objectsBufferingOpening a StreamReading and writing a streamFully buffered I/OLine buffered I/OUnbuffered I/OANSI C buffering requirementsChanging the default bufferingExamplesGoal of bufferingMinimize the number of I/O system calls.There are three types of buffering provided:fully buffered,line buffered,unbuffered.Standard Input/Output Library60-256 System Programming
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Standard Input/Output Library - University of Windsor

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