Mercurial > projects > ldc
diff lphobos/std/typeinfounsupported/ti_float.d @ 1:c53b6e3fe49a trunk
[svn r5] Initial commit. Most things are very rough.
author | lindquist |
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date | Sat, 01 Sep 2007 21:43:27 +0200 |
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--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lphobos/std/typeinfounsupported/ti_float.d Sat Sep 01 21:43:27 2007 +0200 @@ -0,0 +1,67 @@ + +// float + +module std.typeinfo.ti_float; + +private import std.math; + +class TypeInfo_f : TypeInfo +{ + char[] toString() { return "float"; } + + hash_t getHash(void *p) + { + return *cast(uint *)p; + } + + static int _equals(float f1, float f2) + { + return f1 == f2 || + (isnan(f1) && isnan(f2)); + } + + static int _compare(float d1, float d2) + { + if (d1 !<>= d2) // if either are NaN + { + if (isnan(d1)) + { if (isnan(d2)) + return 0; + return -1; + } + return 1; + } + return (d1 == d2) ? 0 : ((d1 < d2) ? -1 : 1); + } + + int equals(void *p1, void *p2) + { + return _equals(*cast(float *)p1, *cast(float *)p2); + } + + int compare(void *p1, void *p2) + { + return _compare(*cast(float *)p1, *cast(float *)p2); + } + + size_t tsize() + { + return float.sizeof; + } + + void swap(void *p1, void *p2) + { + float t; + + t = *cast(float *)p1; + *cast(float *)p1 = *cast(float *)p2; + *cast(float *)p2 = t; + } + + void[] init() + { static float r; + + return (cast(float *)&r)[0 .. 1]; + } +} +