| PL_ACTION_TRACE |
Start Prolog tracer (trace0).
Requires no arguments. |
| PL_ACTION_DEBUG |
Switch on Prolog debug mode (debug0).
Requires no arguments. |
| PL_ACTION_BACKTRACE |
Print backtrace on current output stream.
The argument (an int) is the number of frames
printed. |
| PL_ACTION_HALT |
Halt Prolog execution. This action should be
called rather than Unix exit() to give Prolog
the opportunity to clean up. This call does
not return. The argument (an int) is the
exit code. See halt1. |
| PL_ACTION_ABORT |
Generate a Prolog abort (abort0).
This call does not return.
Requires no arguments. |
| PL_ACTION_BREAK |
Create a standard Prolog break environment
(break0). Returns after the user types
the end-of-file character.
Requires no arguments. |
| PL_ACTION_GUIAPP |
Win32: Used to indicate the kernel that the
application is a GUI application if the
argument is not 0 and a console
application if the argument is 0.
If a fatal error occurs, the system uses a
windows messagebox to report this on a GUI
application and simply prints the error
and exits otherwise. |
| PL_ACTION_WRITE |
Write the argument, a char * to the
current output stream. |
| PL_ACTION_FLUSH |
Flush the current output stream.
Requires no arguments. |
