I don't think it helps ... unless I've missed something in there.
Basically, if I have: 
float x = 123.1;
float y = 123.1;

[download]
then I expect x == y to be true - and every compiler that I have at my disposal supports that expectation.
Similarly, if I have: 
float x = 123.1;
double y = 123.1;

[download]
then I expect x == (float)y to be true - and every compiler that I have at my disposal (except MSVC++ 7.0) supports that expectation.
What I'm seeking is some means of bringing the insane MSVC++ 7.0 (and presumably all other MSVC++ versions prior to 8.0) behaviour into line with the behaviour of these other sane compilers.

It's a question of consistency between compilers. Unless I'm relying on behaviour that the standards classify as "implementation dependent" or "undefined", then it should be the same with all compilers. (If I *am* relying on "implementation dependent"/"undefined" behaviour, then PDL needs a siginificant rewrite - because there are a number of places where the PDL sources assume that behaviour is neither "implementation dependent" nor "undefined".)

Cheers,
Rob

In reply to Re^2: [Win32, C, and way OT] C floats, doubles, and their equivalence by syphilis
in thread [Win32, C, and way OT] C floats, doubles, and their equivalence by syphilis

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