is portable aliasing possible in C++?

[Andrew Haley]

On 09/15/2014 12:29 PM, Hei Chan wrote:
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> On Monday, September 15, 2014 7:22 PM, Andrew Haley <aph@redhat.com> wrote:
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>> Using memcpy(), the compiler will have to make a copy
>> because it sees that few lines, for example, down, the program tries
>> to manipulate the copy.
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> So, don't manipulate the copy, then.  Use it once, then throw it away.
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> Sometimes, due to the endianness, I am forced to manipulate the copy...

I don't know what you mean.  A small example would help.

Andrew.