When I try to implement Bruce Dawson's method for comparing two floats like
this:
inline bool almost_equal(float a, float b, int maxUlps = 16) {
if (a == b) return true;
int intDiff = abs(*(reinterpret_cast<int*>(&a)) -
*(reinterpret_cast<int*>(&b)));
return intDiff <= maxUlps;
}
I get the warning:
warning: dereferencing type-punned pointer will break strict-aliasing rules
How can I avoid this? (Using a union would imply unneeded copying af a and
b).
--
-lauther
[nosave]
----------------------------------------------------------------------------
Ulrich Lauther ph: +49 89 636 48834 fx: ... 636 42284
Siemens CT SE 6 Internet: [EMAIL PROTECTED]
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