[type-traits] VC8 - C4512 warning

[Richard Webb <Richard.Webb@…>]

I'm getting a C4512 warning from type-traits when building with VC8 using warning level 4 and code analysis:

boost\type_traits\alignment_of.hpp(39) : warning C4512: 'boost::detail::alignment_of_hack<T>' : assignment operator could not be generated

(the header in question is included via Optional).

The attached patch silences this for me.

[John Maddock]

(In [41968]) Fixes #1504.

[Eric Niebler]

(In [41984]) Merged revisions 41954-41983 via svnmerge from ​https://svn.boost.org/svn/boost/trunk

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r41955 | schoepflin | 2007-12-10 05:40:56 -0800 (Mon, 10 Dec 2007) | 1 line

Treated Rogue Wave library concept check failure on Tru64/CXX.

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r41956 | dave | 2007-12-10 07:19:21 -0800 (Mon, 10 Dec 2007) | 2 lines

SunPro 5.9 can't detect lvalue returns

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r41957 | t_schwinger | 2007-12-10 10:26:38 -0800 (Mon, 10 Dec 2007) | 3 lines

changes msvc-7.1 to msvc-7.1*

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r41966 | johnmaddock | 2007-12-11 08:37:22 -0800 (Tue, 11 Dec 2007) | 1 line

Fixes #1454.

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r41968 | johnmaddock | 2007-12-11 09:16:21 -0800 (Tue, 11 Dec 2007) | 1 line

Fixes #1504.

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r41970 | johnmaddock | 2007-12-11 09:19:03 -0800 (Tue, 11 Dec 2007) | 1 line

Fixes #1455.

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r41973 | johnmaddock | 2007-12-11 09:28:15 -0800 (Tue, 11 Dec 2007) | 1 line

Fixes #1471.

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r41976 | johnmaddock | 2007-12-11 10:51:57 -0800 (Tue, 11 Dec 2007) | 1 line

Fixes #1474.

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r41979 | vladimir_prus | 2007-12-11 11:41:47 -0800 (Tue, 11 Dec 2007) | 1 line

Put add-usage-requirements back

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r41980 | vladimir_prus | 2007-12-11 11:45:37 -0800 (Tue, 11 Dec 2007) | 1 line

Implement ISFILE for real

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r41981 | vladimir_prus | 2007-12-11 11:46:19 -0800 (Tue, 11 Dec 2007) | 2 lines

When searching for headers, ignore directories, just like gcc does.

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r41983 | bgubenko | 2007-12-11 12:43:11 -0800 (Tue, 11 Dec 2007) | 1 line

remove conditionalization for aCC: this header works with gcc on HP-UX also

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