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bcopy.c
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C/C++ Source or Header
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1992-07-18
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565b
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20 lines
/* bcopy.c -- copy memory.
Copy LENGTH bytes from SOURCE to DEST. Does not null-terminate.
In the public domain.
By David MacKenzie <djm@gnu.ai.mit.edu>. */
void
bcopy (source, dest, length)
char *source, *dest;
unsigned length;
{
if (source < dest)
/* Moving from low mem to hi mem; start at end. */
for (source += length, dest += length; length; --length)
*--dest = *--source;
else if (source != dest)
/* Moving from hi mem to low mem; start at beginning. */
for (; length; --length)
*dest++ = *source++;
}