C++ PATCH: Disallow floating-point literals in integral-constant expressions

[Mark Mitchell]

Ranjit Mathew wrote:

>>>  static const jfloat DEFAULT_LOAD_FACTOR = 0x1.800000p-1f;
>>
>>Ugh.  That's invalid C++.
> 
> 
> Then that should have been a different error, no? :-)
> (But I'm curious - and an ignoramus - why is that invalid?)

See this morning's discussion on the GCC mailing list.

The code generate by gjavah is invalid on two counts: (1) you can't have 
an in-class initialization a static data member of non-integral type, 
and (2) even for a static data member with integral type, the 
initializer has to be an integral constant expression, which a 
floating-point literal is not.

-- 
Mark Mitchell
CodeSourcery, LLC
mark@codesourcery.com
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