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The stdio.h Library (cont)

For C programs using the stdio.h library:
  • need to #include <stdio.h>
  • need to link library   (automatic)
The stdin/stdout/stderr streams
  • are opened automatically when the program starts
  • closed automatically when the program finishes
Other streams must be opened/closed by the programmer

(C programs have a limit on number of simultaneously open streams (e.g. 1024))