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Re: Bootstrap failure on trunk: x86_64-linux-gnu
Jeffrey A Law wrote:
> This does highlight one of the issues that keeps nagging at me.
> For an enumeration type, presumably we have TYPE_PRECISION set to
> the minimum precision necessary to hold all the values in the enum.
> What are TYPE_MIN_VAL/TYPE_MAX_VAL? Does TYPE_MAX_VALUE include
> values outside the enum, but which are included by the TYPE_PRECISION?
In C++, there are no such values. In C++, the range of the type gets
rounded up to a power of two, so for:
> Consider
>
> enum
> {
> RED,
> GREEN,
> BLUE,
> BLACK,
> WHITE
> }
you can happily assign "5" to this enum. The C++ front end correctly
sets TYPE_MAX_VALUE in this case.
I'm not sure what the situation is in C.
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Mark Mitchell
CodeSourcery
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