Mercurial > projects > ldc
diff druntime/src/compiler/ldc/typeinfo/ti_real.d @ 1458:e0b2d67cfe7c
Added druntime (this should be removed once it works).
author | Robert Clipsham <robert@octarineparrot.com> |
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date | Tue, 02 Jun 2009 17:43:06 +0100 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/druntime/src/compiler/ldc/typeinfo/ti_real.d Tue Jun 02 17:43:06 2009 +0100 @@ -0,0 +1,75 @@ +/** + * TypeInfo support code. + * + * Copyright: Copyright Digital Mars 2004 - 2009. + * License: <a href="http://www.boost.org/LICENSE_1_0.txt>Boost License 1.0</a>. + * Authors: Walter Bright + * + * Copyright Digital Mars 2004 - 2009. + * Distributed under the Boost Software License, Version 1.0. + * (See accompanying file LICENSE_1_0.txt or copy at + * http://www.boost.org/LICENSE_1_0.txt) + */ +module rt.typeinfo.ti_real; + +// real + +class TypeInfo_e : TypeInfo +{ + override string toString() { return "real"; } + + override hash_t getHash(in void* p) + { + return (cast(uint *)p)[0] + (cast(uint *)p)[1] + (cast(ushort *)p)[4]; + } + + static equals_t _equals(real f1, real f2) + { + return f1 == f2 || + (f1 !<>= f1 && f2 !<>= f2); + } + + static int _compare(real d1, real d2) + { + if (d1 !<>= d2) // if either are NaN + { + if (d1 !<>= d1) + { if (d2 !<>= d2) + return 0; + return -1; + } + return 1; + } + return (d1 == d2) ? 0 : ((d1 < d2) ? -1 : 1); + } + + override equals_t equals(in void* p1, in void* p2) + { + return _equals(*cast(real *)p1, *cast(real *)p2); + } + + override int compare(in void* p1, in void* p2) + { + return _compare(*cast(real *)p1, *cast(real *)p2); + } + + override size_t tsize() + { + return real.sizeof; + } + + override void swap(void *p1, void *p2) + { + real t; + + t = *cast(real *)p1; + *cast(real *)p1 = *cast(real *)p2; + *cast(real *)p2 = t; + } + + override void[] init() + { static immutable real r; + + return (cast(real *)&r)[0 .. 1]; + } +}