On Tuesday, June 14, 2016 at 7:46:53 AM UTC-4, Jeffrey Walton wrote:
>
> Hi Everyone,
>
> Integer class took a bug report under Sun Studio 12.4. Also see Issue 184:
> Error:
> The operand "___LKDB" cannot be assigned to (
> http://github.com/weidai11/cryptopp/issues/188).
>
> Sun CC 12.4 is an important Sun compiler because its their C++11 compiler.
> I'm fairly certain the bug report is bogus, and its a compiler bug. Never
> the less, we had to work around it.
>
> The hack is available at
> http://github.com/weidai11/cryptopp/commit/7e06c1dce4b0ebc89708ba7afbcc23ff9093f4ea.
>
> The essence of the hack is:
>
> #if (__SUNPRO_CC == 0x5130)
> # define MAYBE_CONST
> #else
> # define MAYBE_CONST const
> #endif
>
This was changed a small bit:
#if (__SUNPRO_CC == 0x5130)
# define MAYBE_CONST
# define MAYBE_UNCONST_CAST const_cast<word*>
#else
# define MAYBE_CONST const
# define MAYBE_UNCONST_CAST
#endif
It allows us to avoid the un-const cast completely if its not needed. It
gets used as expected:
void Baseline_Square2(word *R, const word *AA)
{
// http://github.com/weidai11/cryptopp/issues/188
MAYBE_CONST word* A = MAYBE_UNCONST_CAST(AA);
Squ_2
}
Also see
http://github.com/weidai11/cryptopp/commit/c042616ba5951c843a9b6e2d1c7f7b5a3893ccb9.
To test these changes, jump on the Solaris branch with 'git checkout
solaris'. Or, visit GitHub, select Solaris from the drop down, then select
Download ZIP.
Jeff
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