READB(3F)           UNIX Programmer's Manual            READB(3F)

NAME
     readb, writeb - buffered binary input/output

SYNTAX
     integer size, nitems, fileid, n, readb
     n = readb(var, size, nitems, fileid)

     integer size, nitems, fileid, n, writeb
     n = writeb(var, size, nitems, fileid)

DESCRIPTION
     _R_e_a_d_b reads, into a variable _v_a_r, _n_i_t_e_m_s of data of length
     _s_i_z_e bytes from the input file associated with _f_i_l_e_i_d.  It
     returns the number of items actually read.

     _F_w_r_i_t_e appends at most _n_i_t_e_m_s of data of length _s_i_z_e bytes
     from the variable _v_a_r to the output file associated with
     _f_i_l_e_i_d.  It returns the number of items actually written.

SEE ALSO
     getc(3F), getlin(3F), open(3F), putc(3F), putlin(3F),
     printn(3F), scann(3F)

DIAGNOSTICS
     _R_e_a_d_b and _w_r_i_t_e_b return 0 upon end of file or error.

AUTHOR
     Bruce Julian, U.S. Geological Survey, Menlo Park, California

Printed 5/17/83                                                 1