Hello,
If Qt 5.7 are going to support only "proper" C++11 compilers, can new Qt code assume that function local static variable
initialization is thread-safe?
Qt 5.7 Wiki page [1] makes me think that only Visual Studio 2013 and above are supported, is that right? If so, it
appears that "magic statics" are implemented in 2013 RC [2] .
So, is it appropriate to write code like this:
// might be called in multiple threads
int Foo::bar() {
static QAtomicInteger<unsigned int> count;
return count.fetchAndAddRelaxed(1);
}
I am thinking maybe I could refactor small helper function qMakePreparedStmtId() [3] to use QAtomicInteger<unsigned int>
instead of unsigned int and mutex.
Thanks.
[1] https://wiki.qt.io/Qt-5.7.0-tools-and-versions
[2] http://herbsutter.com/2013/09/09/visual-studio-2013-rc-is-now-available/
[3]
http://code.qt.io/cgit/qt/qtbase.git/tree/src/sql/drivers/psql/qsql_psql.cpp?h=v5.5.1#n594
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