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view dmd/readme.txt @ 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 | c53b6e3fe49a |
| children |
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The D Programming Language Compiler Front End Source Copyright (c) 1999-2002, by Digital Mars www.digitalmars.com All Rights Reserved This is the source code to the front end Digital Mars D compiler. It covers the lexical analysis, parsing, and semantic analysis of the D Programming Language defined in the documents at www.digitalmars.com/d/ The optimizer, code generator, and object file generator are not part of this source, hence the source does not currently constitute a complete, compilable program. However, many people have expressed a strong interested in producing a D compiler with the GNU compiler sources. This release should enable that. These sources are free, they are redistributable and modifiable under the terms of the GNU General Public License (attached as gpl.txt), or the Artistic License (attached as artistic.txt). It does not apply to anything else distributed by Digital Mars, including D compiler executables. -Walter Bright