Matlab Help Index Technical Documentation Index

fwrite3

NAME

write a 3 byte integer out of a file

SYNOPSIS

function fwrite3(fid, val)

DESCRIPTION

 write a 3 byte integer out of a file
fwrite(fid, val, '3*uchar') ;

CROSS-REFERENCE INFORMATION

This function calls:

This function is called by:

fast_write_wfile
write_wfile

SUBFUNCTIONS

No subfunction for this M-file.

SOURCE CODE

0001 function fwrite3(fid, val)
0002 % write a 3 byte integer out of a file
0003 %fwrite(fid, val, '3*uchar') ;
0004 
0005 b1 = bitand(bitshift(val, -16), 255) ;
0006 b2 = bitand(bitshift(val, -8), 255) ;
0007 b3 = bitand(val, 255) ; 
0008 fwrite(fid, b1, 'uchar') ;
0009 fwrite(fid, b2, 'uchar') ;
0010 fwrite(fid, b3, 'uchar') ;
0011 
0012