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Improve is_pod docs.

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[SVN r32412]
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John Maddock
2006-01-25 10:44:01 +00:00
parent f3cd13084e
commit 2095e8d5a9
1 changed files with 10 additions and 1 deletions
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doc/type_traits.qbk
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@ -2200,7 +2200,16 @@ expression that evaluates to /false/: void is not an object type]
__inherit If T is a (possibly cv-qualified) POD type then inherits from __true_type,
otherwise inherits from __false_type.
__std_ref 3.9p10 and 9p4.
POD stands for "Plain old data".
Arithmetic types, and enumeration types,
a pointers and pointer to members are all PODs. Classes and unions can also
be POD's if they have no non-static data members that are of reference or
non-POD type, no user defined constructors, no user defined assignment
operators, no private or protected non-static data members,
no virtual functions and no base classes. Finally, a cv-qualified POD is
still a POD, as is an array of PODs.
__std_ref 3.9p10 and 9p4 (Note that POD's are also aggregates, see 8.5.1).
__compat If the compiler does not support partial-specialization
of class templates, then this template can not be used with function types.