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view lphobos/std/outofmemory.d @ 1275:bedf0bfb8fdb
Implement first D-specific optimization pass: -simplify-drtcalls.
It uses the machinery of the standard -simplify-libcalls pass, but optimizes
calls to the D runtime instead of calls to C libraries.
At the moment, these optimizations are implemented by this pass:
- Avoid the runtime call for `arr.length = newlen` if it can determine that
the new length isn't longer than the old one.
- Ditto for `cast(T[]) arr` if it will clearly always succeed.
(e.g. if the length of the original array is zero, or if the old element
size is a multiple of the new element size)
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Tue, 28 Apr 2009 21:58:06 +0200 |
parents | 88e23f8c2354 |
children |
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/** * Macros: * WIKI=Phobos/StdOutOfMemory * Copyright: * Placed into public domain. * www.digitalmars.com */ module std.outofmemory; /****** * This exception is thrown when out of memory errors happen. */ class OutOfMemoryException : Exception { static char[] s = "Out of memory"; /** * Default constructor */ this() { super(s); } char[] toString() { return s; } } extern (C) void _d_OutOfMemory() { printf("Out of memory!\n"); *(cast(int*) 0) = 0; throw cast(OutOfMemoryException) cast(void *) OutOfMemoryException.classinfo.init; } static this() { }