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Exception allocation, cloning, and release compiler support routines.
Distributed under the Boost Software License 1.0. (See accompanying file LICENSE)
Walter Bright
Throwable _d_newThrowable(const TypeInfo_Class ci);
Allocate an exception of type ci from the exception pool. It has the same interface as rt.lifetime._d_newclass(). The class type must be Throwable or derived from it, and cannot be a COM or C++ class. The compiler must enforce this.
default initialized instance of the type
nothrow void _d_delThrowable(Throwable t);
Delete exception instance t from the exception pool. Must have been allocated with _d_newThrowable(). This is meant to be called at the close of a catch block. It's nothrow because otherwise any function with a catch block could not be nothrow.

Input t = Throwable