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11.2.6 Debugging

add_breakpoint(+Conditions, -BID)   development
Creates a breakpoint with Conditions and with identifier BID.
user:breakpoint_expansion(+Macro, -Body)   hook,development
defines debugger condition macros
coverage_data(?Data)   since release 4.2,development
Data is the coverage data accumulated so far
current_breakpoint(?Conditions, ?BID, ?Status, ?Kind, ?Type)   development
There is a breakpoint with conditions Conditions, identifier BID, enabledness Status, kind Kind, and type Type.
debug   development
switch on debugging
user:debugger_command_hook(+DCommand,-Actions)   hook,development
Allows the interactive debugger to be extended with user-defined commands.
debugging   development
display debugging status information
disable_breakpoints(+BIDs)   development
Disables the breakpoints specified by BIDs.
enable_breakpoints(+BIDs)   development
Enables the breakpoints specified by BIDs.
user:error_exception(+Exception)   hook
Exception is an exception that traps to the debugger if it is switched on.
execution_state(+Tests)   development
Tests are satisfied in the current state of the execution.
execution_state(+FocusConditions, +Tests)   development
Tests are satisfied in the state of the execution pointed to by FocusConditions.
leash(+M)   development
set the debugger's leashing mode to M
nodebug   development
switch off debugging
nospy(:P)   development
remove spypoints from the procedure(s) specified by P
nospyall   development
remove all spypoints
notrace   development
switch off debugging (same as nodebug/0)
nozip   development
switch off debugging (same as nodebug/0)
print_coverage   since release 4.2,development
print_coverage(?Data)   since release 4.2,development
The coverage data Data is displayed in a hierarchical format. Data defaults to the coverage data accumulated so far.
print_profile   since release 4.2,development
print_profile(?Data)   since release 4.2,development
The profiling data Data is displayed in a format similar to gprof(1). Data defaults to the profiling data accumulated so far.
profile_data(?Data)   since release 4.2,development
Data is the profiling data accumulated so far
profile_reset   since release 4.2,development
All profiling data is reset.
remove_breakpoints(+BIDs)   development
Removes the breakpoints specified by BIDs.
spy(:P)   development
spy(:P,:C)
set spypoints on the procedure(s) specified by P with conditions C
trace   development
switch on debugging and start tracing immediately
unknown(-O,+N)   development
Changes action on undefined predicates from O to N.
user:unknown_predicate_handler(+G,+M,-N)   hook
handle for unknown predicates.
zip   development
switch on debugging in zip mode

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