Hi,
whoever is responsible currently for XCOPY (Blair?):
in line ~450, don't use
if (chsize(fddest,filelength(fdsrc)) == -1)
...
Borland RTL fills the file with '\0', using a small buffer, and is
sloooooooooow.
use
filesize = filelength(fdsrc);
lseek(fddest, filesize, SEEK_SET);
dosreadwrite(fddest, NULL,0, 1); // writing 0
bytes extends or truncates file
if (lseek(fddest, 0, SEEK_CUR) != filesize)
...
instead for a total speed gain of ~3x
Tom
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