Standard Input/Output Library - University of Windsor

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IntroductionStreams and FILE objectsBufferingOpening a StreamReading and writing a streamChanging the default bufferingFully buffered I/OLine buffered I/OUnbuffered I/OANSI C buffering requirementsChanging the default bufferingExamplesWe can change the default buffering using:void setbuf(FILE *fp, char *buf);If buf is NULL then, buffering is disabled.Otherwise, buf must point to a buffer of length BUFSIZ.void setvbuf(FILE *fp, char *buf, int mode,size t size);This function can specify which buffering we wantdepending on the value of mode:IOFBF: fully bufferedIOLBF: line bufferedIONBF: unbufferedNote that when an unbuffered stream is specified, the bufand size arguments are ignored.Standard Input/Output Library60-256 System Programming
Example 1IntroductionStreams and FILE objectsBufferingOpening a StreamReading and writing a streamFully buffered I/OLine buffered I/OUnbuffered I/OANSI C buffering requirementsChanging the default bufferingExamples#include #include // This is needed for sleep()int main(void){ // without fflushint i=0;char line[100]="Hello, my name No-Name\n";while(line[i] != NULL){putchar(line[i++]);sleep(1);}}Standard Input/Output Library60-256 System Programming
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Page 3 and 4: IntroductionStreams and FILE object
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Page 15 and 16: Opening a StreamIntroductionStreams
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Standard Input/Output Library - University of Windsor

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