HP 3000 Manuals HP 3000 Manuals
Chapter 11 Error Recovery and Debugging
There are three types of Pascal errors. They are:
* An error, which violates the definition of the HP Pascal language.
* A compile-time error, which occurs when you compile your program
(as in the case of a syntax error).
* A run-time error, which occurs when you run your program (as in
the case of a value out of range).
Errors are not to be confused with notes and warnings, both of which
occur at compile time. A note gives you information that may help you
make your program more efficient. A warning alerts you to a situation
that could cause a run-time error (the compiler cannot tell if it will).
This chapter explains:
* How to write error recovery code for your program, so that it can
handle run-time errors that would otherwise cause it to abort
(error recovery code does not catch compile-time errors, warnings,
or notes).
* How to use the MPE/iX traps that you can use with HP Pascal.
* How to compile your program for use with the HP TOOLSET/XL
debugger, the HP Symbolic Debugger, or the system debuggers.