DESCRIPTION¶
Create a shallow copy of value 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 copied by reference!
For other values this function is a no-op.
USAGE¶
Because the example below uses a shallow copy, modifications to the nested array are visible in both copies:
mixed *a, *b;
a = ({ 1, ({ 21, 22 }) });
b = copy(a);
a[0] = -1;
a[1][0] = -21;
// a is now ({ -1, ({ -21, 22 }) })
// b is now ({ 1, ({ -21, 22 }) })
HISTORY¶
- introduced (3.2.6)