How to define and initialize data members in C++
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C.47: define and initialize data member Reason in the order in which member variables are declared (reason)
Minimize confusion and errors. This is the order in which initialization is performed (regardless of the order of member initializers).
Example, bad (negative example) class Foo {
Int m1
Int m2
Public:
Foo (int x): m2 {x}, M1 {+ + x} {} / / BAD: misleading initializer order
/ /...
}
Foo x (1); / / surprise: x.m1 = = x.m2 = = 2Enforcement (implementation recommendation)
(simple) the member initialization list should process them in the order in which they are declared.
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