Mercurial > projects > ldc
view dmd2/stringtable.h @ 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 | f04dde6e882c |
children |
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// Copyright (c) 1999-2008 by Digital Mars // All Rights Reserved // written by Walter Bright // http://www.digitalmars.com // License for redistribution is by either the Artistic License // in artistic.txt, or the GNU General Public License in gnu.txt. // See the included readme.txt for details. #ifndef STRINGTABLE_H #define STRINGTABLE_H #if __SC__ #pragma once #endif #include "root.h" #include "dchar.h" #include "lstring.h" struct StringValue { union { int intvalue; void *ptrvalue; dchar *string; }; Lstring lstring; }; struct StringTable : Object { void **table; unsigned count; unsigned tabledim; StringTable(unsigned size = 37); ~StringTable(); StringValue *lookup(const dchar *s, unsigned len); StringValue *insert(const dchar *s, unsigned len); StringValue *update(const dchar *s, unsigned len); private: void **search(const dchar *s, unsigned len); }; #endif