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1.1 ! root 1: ! 2: ! 3: setbuf() STDIO setbuf() ! 4: ! 5: ! 6: ! 7: ! 8: Set alternative stream buffers ! 9: ! 10: #include <stdio.h> ! 11: vvooiidd sseettbbuuff(_f_p, _b_u_f_f_e_r) FFIILLEE *_f_p; cchhaarr *_b_u_f_f_e_r; ! 12: ! 13: The standard I/O library STDIO automatically buffers all data ! 14: read and written in streams, with the exception of streams to ! 15: terminal devices. STDIO normally uses malloc to allocate the ! 16: buffer, which is a char array BUFSIZ characters long; BUFSIZ is ! 17: defined in the header file stdio.h. ! 18: ! 19: setbuf's arguments are the file stream fp and the buffer to be ! 20: associated with the stream. The call should be issued after the ! 21: stream has been opened, but before any input or output request ! 22: has been issued. The _b_u_f_f_e_r passed to setbuf may be NULL, in ! 23: which case the stream will be unbuffered, or contains at least ! 24: BUFSIZ bytes. ! 25: ! 26: setbuf returns nothing. ! 27: ! 28: ***** See Also ***** ! 29: ! 30: fopen(), malloc(), STDIO ! 31: ! 32: ! 33: ! 34: ! 35: ! 36: ! 37: ! 38: ! 39: ! 40: ! 41: ! 42: ! 43: ! 44: ! 45: ! 46: ! 47: ! 48: ! 49: ! 50: ! 51: ! 52: ! 53: ! 54: ! 55: ! 56: ! 57: ! 58: ! 59: ! 60: ! 61: ! 62: ! 63: ! 64: COHERENT Lexicon Page 1 ! 65: ! 66:
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