HP 3000 Manuals

HP C/iX Reference Manual

Structures and Unions 

Structure or union references that are not fully qualified (see example
below) are flagged with an error by the compiler.

     struct{
            int j;
            struct {int i;}in;
           } out;
           out.i=3;

The correct statement for the example above is out.in.i = 3;.

MPE/iX 5.0 Documentation