answer_write_options( term, changeable) This argument is given as option-list to write_term/2įor printing results of queries. The API level of the running device, since it is the API level atĬompile time. android_api( integer) If running on Android, it indicates the compile-time API Level definedīy the C macro _ANDROID_API_. Theįlag is not present in other operating systems.
VISUAL PROLOG 5.2 LICENSE KEY ANDROID
android( bool) If present and true, it indicates we are running on the Android OS. Using this feature, F(x) can be turned into valid syntaxįor such script languages. Using the option variable_names and binding the variables Variables can be turned into atoms starting with an uppercase In theseĬases, it is often difficult to explain to non-Prolog users of theĪpplication that constants and functions can only start with a lowercase Predicate for reading an application-defined script language. allow_variable_name_as_functor( bool, changeable) If true (default is false), Functor(arg) is read as if it That this conflicts with cascading functional notation. Languages, which can make this a useful flag for defining DSLs. The dot is allowed in identifiers in many Must be followed by an identifier continuation character (i.e., Into atoms that are not quoted and start with a letter. allow_dot_in_atom( bool, changeable) If true (default false), dots may be embedded Applications using extremely large atomsĮxplicitly or lower the margin. That SWI-Prolog has no limit on the length of atoms, 10,000 atoms may A value of 0 (zero) disables atom garbage collection. Garbage collection at the first opportunity. agc_margin( integer, changeable) If this amount of atoms possible garbage atoms exist perform atom Note that the setting for this flag in the main threadĪpplies. Using the skeleton below, where process/1 is a predicate that reads from
VISUAL PROLOG 5.2 LICENSE KEY CODE
Code that uses I/O streams should use setup_call_cleanup/3 Which implies that it is not guaranteed that all garbage atoms are Garbage collector because it may take long before the atom garbageĬollector runs and because that atom garbage collector is conservative, Note that closing I/O streams should not be left to the (atom) That atom garbage collector streams that are garbage collected whileīeing open. Versions are likely to change the default to true.), agc_close_streams( boolean, changeable) When true (default false 16 Future Maximum stack limit, this has few implications to the user. address_bits( integer) Address size of the hosting machine. Leave the exact consequences undefined, but, for example, system codeĬan be traced using system access and system predicates can be Operations are not permitted and some details are kept invisible. In system view all system code is fullyĪccessible as if it was normal user code.
access_level( atom, changeable) This flag defines a normal‘user' view ( user, default) Various Application Binary Interface (ABI) components. As aĬonsequence, modifying a flag inside a thread does not affect otherĪbi_version( dict) The flag value is a dict with keys that describe the version of the
Is implemented using the copy-on-write technique. Currently, the following flags are scoped to the source file:ġ0) copies all flags from the thread that created the new When loading of the file started is restored when loading of the file isĬompleted. They are set using a directive inside a file, the flag value encountered Some Prolog flags are scoped to a source file. Indicated in the documentation below as “if present and true''.Ī boolean Prolog flag is true iff the Prolog flag is presentĪnd the Value is the atom true. Some Prolog flags are not defined in all versions, which is normally Library(settings) provides an alternative interface for May be used to create flags that describe or control behaviour of With the value of the Prolog flag or fails if the Key is notįlags marked changeable can be modified by the user usingįlag values are typed. With both arguments unbound, it will generate allĭefined Prolog flags. Value) The predicate current_prolog_flag/2ĭefines an interface to installation features: options compiled in, Version, operating system, foreign code environment, command lineĪrguments, version, as well as runtime flags to control the runtimeīehaviour of certain predicates to achieve compatibility with other Provides access to whether optional features are available on this Allow the user to examine and modify the execution environment.
0 kommentar(er)
