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view tools/binding/llvm/util.d @ 1418:f5f8c21ce6ef
Make "`aa[key]`" use the same runtime call as "`key in aa`". The runtime calls
these were using were different, but with equivalent definitions.
With `ldc -O3`, the following functions now all compile to the exact same code:
{{{
int[int] y;
void foo(int x) {
if (x in y) {
auto z = x in y;
sink(*z);
}
}
void bar(int x) {
if (x in y) {
sink(y[x]);
}
}
void baz(int x) {
if (auto p = x in y) {
sink(*p);
}
}
}}}
author | Frits van Bommel <fvbommel wxs.nl> |
---|---|
date | Mon, 25 May 2009 12:50:40 +0200 |
parents | 1ba61de8796b |
children |
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// Written in the D programming language by Tomas Lindquist Olsen 2008 // Binding of llvm.c.Core values for D. // // This file is distributed under the University of Illinois Open Source // License. See LICENSE.TXT for details. // module llvm.util; //we need <cstring> version(Tango) { import tango.stdc.string; } else { import std.c.string; } /// char[] from_stringz(char* p) { if (p is null) return ""; return p[0..strlen(p)]; } /// char* to_stringz(char[] s) { return (s~\0).ptr; }