Reference-compatibility rules apply to reference and non-reference variables, as described in the next sections.
A part that is defined in one EGL package is not the same as a part defined in another package, even if the part names are identical.
For an overview of reference variables, see Reference variables and NIL in EGL.
In relation to a fixed record or structure field, the length of the argument must be greater than or equal to the length of the parameter. This rule prevents the receiving code from accessing memory that is not valid.
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