Re: Static order variable initialization in C++
terminator ha scritto:
On Oct 24, 3:31 pm, bt.srini...@gmail.com wrote:
Is there any addition to C++ standard to take care of the static
variable order of initialization?
A common techniqe is to wrap them inside static functions:
datatype& var(){
static datatype data(initializer_params);
return data;
};
The in-function-nested static variable is guaranteed to be initialized
prior to first call to the wrapping function.So the order of wrapping-
function calls controls the order of initialization of wrapped static
variables.
C++0x adds the guarantee that such idiom provides the correct behaviour
even if var() is called concurrently from multiple threads (C++03 had no
such guarantee). Because of this, unless you have very special needs
such as having control over the destruction time or order, this idiom
should be your first choice in most cases.
Ganesh
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