copy |
Discworld driver help |
copy |
Name
copy() - recursively duplicate a value
Synopsis
mixed copy( mixed arg );
Description
copy() returns a value with exactly the same value as `arg', but with all reference types (mappings, arrays, etc.) duplicated. For example:
mapping a, b = ({ 1 });
a = b;
a[0] = 2;
printf("%O %O\n", a, b);
results in ({ 2 }) and ({ 2 }), while:
mapping a, b = ({ 1 });
a = copy(b);
a[0] = 2;
printf("%O %O\n", a, b);
results in ({ 2 }) and ({ 1 }).
