view test/union5.d @ 275:665b81613475 trunk

[svn r296] Removed: the 'suite' dir, it never took off! Fixed: foreach statement, key-type checks were buggy. Fixed: setting LLVMDC versions on the command line is now an error. Fixed: array compare runtime had incorrect param attrs on call. Fixed: index expressions on dynamic array slices w/o storage was broken. Fixed: scope classes had incorrect finalization in some cases. Fixed: when outputting !ClassInfoS !OffsetTypeInfoS, static class members were trying to be included, crashing the compiler. Fixed: calling LLVMDC with -inline but not any -O option caused assertion failure. Changed: the runtime now uses a single interface to "get" to !TypeInfoS, part of eliminating duplicate !TypeInfo codegen.
author lindquist
date Thu, 19 Jun 2008 17:30:32 +0200
parents 9e1bd80a7e98
children
line wrap: on
line source

module union5;

pragma(LLVM_internal, "notypeinfo")
{
    union S
    {
        T t;
        U u;
        uint i;
        struct {
            ushort sl,sh;
        }
    }

    struct T
    {
        int i;
    }

    struct U
    {
        float f;
    }
}

void main()
{
    S s;
    assert(s.t.i == 0);
    assert(s.u.f == 0);
    s.t.i = -1;
    assert(s.i == 0xFFFF_FFFF);
    float f = 3.1415;
    s.u.f = f;
    uint pi = *cast(uint*)&f;
    assert(s.i == pi);
    assert(s.sl == (pi&0xFFFF));
    assert(s.sh == (pi>>>16));
}