5.2 Exception Operations

The DECthreads Exception Package allows you to perform the following operations on exceptions:

• Declare and initialize an exception object

• Raise an exception

• Define a region of code over which exceptions are caught

• Catch a particular exception or all exceptions

• Reraise the current exception

• Define epilogue actions for a block

• Import a system-defined error status into the program as an exception

• Extract a system-defined error status from an exception

• Report an exception

• Determine whether two exceptions match

These operations are discussed in the following sections.