http://d.puremagic.com/issues/show_bug.cgi?id=3365
Summary: Safe casts: type modifiers
Product: D
Version: future
Platform: All
OS/Version: All
Status: NEW
Severity: enhancement
Priority: P2
Component: DMD
AssignedTo: nob...@puremagic.com
ReportedBy: dfj1es...@sneakemail.com
--- Comment #0 from Sobirari Muhomori <dfj1es...@sneakemail.com> 2009-10-05
07:11:53 PDT ---
C++ has const_cast to add or remove const modifier from type. Currently in D
casting to/from const is unsafe as it doesn't protect from type conversions.
Safe variants of const casts can be added with the following syntax:
cast(const)obj; //to const-qualified
cast(~const)obj; //to mutable
cast(immutable)obj; //instead of assumeUnique
cast(~immutable)obj;
cast(shared)obj;
cast(~shared)obj;
I'm not sure whether cast(~const) should behave exactly as cast(~immutable).
P.S. This doesn't impose any additional requirement on the runtime library.
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