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The PRE op-code is followed by the value the corresponding compiler directive is to take.
0002 PRE MAX_NUM_ITERATIONS=400
0003 PRE MAX_STRING_LENGTH=4096
0004 PRE RUNTIME_ERROR_HANDLING=rte_Abort_Macro
Note that the value rte_Abort_Macro is not a string, it is a constant that the compiler knows how to interpret.