mirror of
https://git.code.sf.net/p/quake/quakeforge
synced 2025-02-27 14:10:58 +00:00
d18ee8dd86
It's full of evil hacks, but has always been an evil hack relying on undefined behavior. The weird shenanigans with local variables are because Ruamoko doesn't copy the parameters like v6p does and thus v and z are NOT adjacent as parameters. Worse, the padding is uninitialized and thus should not be relied upon to be any particular value. Still does a nice job of testing dot products, though.
33 lines
482 B
R
33 lines
482 B
R
void printf (string fmt, ...) = #0;
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#if __RUAMOKO__ > 1
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#define dot @dot
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#define X .y
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#else
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#define dot *
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#define X
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#endif
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void forcelive (float z)
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{
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}
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float foo (vector _v, float _z)
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{
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vector v = _v;
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float z = _z;
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_v = nil;
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_z = _z - _z;
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forcelive (z);
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return (v dot *(vector*)(&v.y))X;
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}
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int
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main (int argc, string *argv)
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{
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vector v = [1, 2, 3];
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vector w = [2, 3, 4];
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float f;
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printf ("%v %g %g %g\n", v, v dot v, v dot w, f=foo (v, 4));
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return f != (v dot w)X;
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}
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