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Annotation of coherent/a/usr/man/MULTI/read, revision 1.1

1.1     ! root        1: 
        !             2: 
        !             3: read()                 COHERENT System Call                read()
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        !             6: 
        !             7: 
        !             8: Read from a file
        !             9: 
        !            10: iinntt rreeaadd(_f_d, _b_u_f_f_e_r, _n) iinntt _f_d; cchhaarr *_b_u_f_f_e_r; iinntt _n;
        !            11: 
        !            12: read reads up to n bytes  of data from the file descriptor fd and
        !            13: writes them into buffer.  The amount of data actually read may be
        !            14: less than that requested if  read detects EOF.  The data are read
        !            15: beginning at the current seek position in the file, which was set
        !            16: by the most recently executed read or lseek routine.  read advan-
        !            17: ces the seek pointer by the number of characters read.
        !            18: 
        !            19: ***** Example *****
        !            20: 
        !            21: For an  example of how  to use this  function, see the  entry for
        !            22: open.
        !            23: 
        !            24: ***** See Also *****
        !            25: 
        !            26: COHERENT system calls, STDIO
        !            27: 
        !            28: ***** Diagnostics *****
        !            29: 
        !            30: With a  successful call, read  returns the number  of bytes read;
        !            31: thus, zero bytes  signals the end of the file.   It returns -1 if
        !            32: an error occurs, such as bad file descriptor, bad buffer address,
        !            33: or physical read error.
        !            34: 
        !            35: ***** Notes *****
        !            36: 
        !            37: read is  a low-level call that passes  data directly to COHERENT.
        !            38: It should not be intermixed with high-level calls, such as fread,
        !            39: fwrite, or fopen.
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        !            63: 
        !            64: COHERENT Lexicon                                           Page 1
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