Mercurial > projects > ldc
diff druntime/src/compiler/ldc/typeinfo/ti_double.d @ 759:d3eb054172f9
Added copy of druntime from DMD 2.020 modified for LDC.
author | Tomas Lindquist Olsen <tomas.l.olsen@gmail.com> |
---|---|
date | Tue, 11 Nov 2008 01:52:37 +0100 |
parents | |
children |
line wrap: on
line diff
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/druntime/src/compiler/ldc/typeinfo/ti_double.d Tue Nov 11 01:52:37 2008 +0100 @@ -0,0 +1,64 @@ + +// double + +module rt.typeinfo.ti_double; + +class TypeInfo_d : TypeInfo +{ + override string toString() { return "double"; } + + override hash_t getHash(in void* p) + { + return (cast(uint *)p)[0] + (cast(uint *)p)[1]; + } + + static equals_t _equals(double f1, double f2) + { + return f1 == f2 || + (f1 !<>= f1 && f2 !<>= f2); + } + + static int _compare(double d1, double 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(double *)p1, *cast(double *)p2); + } + + override int compare(in void* p1, in void* p2) + { + return _compare(*cast(double *)p1, *cast(double *)p2); + } + + override size_t tsize() + { + return double.sizeof; + } + + override void swap(void *p1, void *p2) + { + double t; + + t = *cast(double *)p1; + *cast(double *)p1 = *cast(double *)p2; + *cast(double *)p2 = t; + } + + override void[] init() + { static double r; + + return (cast(double *)&r)[0 .. 1]; + } +}