HP C A.06.05 Reference Manual

HP C/HP-UX Implementation Topics
Pointers
Chapter 10246
Pointers
• Pointers to functions should not be compared using relational operators because the
pointers represent external function labels and not actual addresses.
• Dereferencing a pointer that contains an invalid value results in a trap if the address
references protected memory or if the address is not properly aligned for the object being
referenced.
• A declaration of a pointer to an undefined structure tag is allowed, and the tag need not be
defined in the source module unless the pointer is used in an expression.