[Main page] [Overview]     /efun /deep_copy

---

SYNOPSIS
mixed deep_copy (mixed arg)

DESCRIPTION
Create a deep copy of <arg> and return it. For arrays and mappings
this means that a new array or mapping is created with copies of the
original content. Embedded arrays and mappings are truly copied, too.

For other values this function is a no-op.

If DYNAMIC_COST is defined, every nested mapping or array counts
towards the evaluation cost in both size and nesting depth.

EXAMPLE
mixed *a, *b;

a = ({ 1, ({ 21, 22 }) });
b = deep_copy(a);
a[0] = -1; a[1][0] = -21;
--> a is now ({ -1, ({ -21, 22 }) })
b is still ({ 1, ({ 21, 22 }) })

HISTORY
Introduced in LDMud 3.2.6.
LDMud 3.2.9 added the dynamic cost to the efun.

SEE ALSO
copy(E)