Another GLIBC build error with GCC6

Andreas Schwab schwab@suse.de
Wed Jul 22 07:13:00 GMT 2015


Roland McGrath <roland@hack.frob.com> writes:

> In this case, the left shift doesn't even lose any bits, because the high
> bit is already zero (and it's a constant, so the compiler knows that).  In
> fact, that's the whole point of the thing: to sign-extend the 31-bit value
> to 32 bits.  I don't think it should complain about 0x7fffffff << 1.

Only if you make 0x7fffffff unsigned.

Andreas.

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Andreas Schwab, SUSE Labs, schwab@suse.de
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