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/// Maps out the port registers.<br />
&nbsp; &nbsp; struct PortReg<br />
&nbsp; &nbsp; {<br />
&nbsp; &nbsp; &nbsp; volatile uint32 &nbsp;*Set;<br />
&nbsp; &nbsp; &nbsp; volatile uint32 &nbsp;*Clear;<br />
&nbsp; &nbsp; &nbsp; volatile uint32 &nbsp;*State;<br />
&nbsp; &nbsp; &nbsp; volatile uint32 &nbsp;*Mask;<br />
&nbsp; &nbsp; &nbsp; volatile uint32 &nbsp;*Dir;<br />
&nbsp; &nbsp; &nbsp; volatile uint32 &nbsp;*FunctionLower;<br />
&nbsp; &nbsp; &nbsp; volatile uint32 &nbsp;*FunctionUpper;<br />
&nbsp; &nbsp; &nbsp; volatile uint32 &nbsp;*ModeLower;<br />
&nbsp; &nbsp; &nbsp; volatile uint32 &nbsp;*ModeUpper;<br />
&nbsp; &nbsp; &nbsp; volatile uint32 &nbsp;*OutputReg;<br />
&nbsp; &nbsp; };<br />
<br />
&nbsp; &nbsp; static const PortReg PortRegList[];<br />
<br />
Is this allowed? &nbsp;Aren't we required to specify the array size?
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/// Maps out the port registers.
    struct PortReg
    {
      volatile uint32  *Set;
      volatile uint32  *Clear;
      volatile uint32  *State;
      volatile uint32  *Mask;
      volatile uint32  *Dir;
      volatile uint32  *FunctionLower;
      volatile uint32  *FunctionUpper;
      volatile uint32  *ModeLower;
      volatile uint32  *ModeUpper;
      volatile uint32  *OutputReg;
    };

    static const PortReg PortRegList[];

Is this allowed?  Aren't we required to specify the array size?

What is the array size?

C++ is an intermediate-level general-purpose programming language, not to be confused with C or C#. It was developed as a set of extensions to the C programming language to improve type-safety and add support for automatic resource management, object-orientation, generic programming, and exception handling, among other features.