Logtalk discussion forums

Hi, Logtalk 3.24.0 is now available for downloading at: https://logtalk.org/ This release adds a threaded_cancel/1 built-in predicate; includes compiler linter improvements; adds new handbook sections and includes several improvements to existing sections; adds a file/stream reader library; improves...

Hi, Logtalk 3.23.0 is now available for downloading at: http://logtalk.org/ This release includes compiler and documentation improvements and fixes; new coroutining and list zipper libraries; improved expected and optional term libraries; a new `debug_messages` tool; improvements to the `lgtunit` to...

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The conforms_to_protocol/2 predicate returns both objects and categories that conform to a protocol: https://logtalk.org/manuals/refman/predicates/conforms_to_protocol_2_3.html But you can only send messages to objects. You get that error because “weapon” is a category. Try: ?- current_object(Object...

A first approach would be to enumerate the currently defined objects and send to them the size/1 message: | ?- current_object(Object), Object::size(small). But this would result in predicate existence errors for any object that does not understand the size/1 message. To avoid these errors, we could ...

Hi, Logtalk 3.22.0 is now available for downloading at: http://logtalk.org/ This release provides new and improved handbook sections; improves the readability of PDF and HTML versions of the handbook and the APIs documentation; adds sample implementations of object-oriented behavioral, creational, a...

Hi, Logtalk 3.21.0 is now available for downloading at: http://logtalk.org/ This release adds a contributor code of conduct; includes several improvements to the manuals; moves the manuals and the core, library, tools, and contributions APIs documentation to Sphinx using the Read the Docs theme; inc...

Hi, Logtalk 3.20.0 is now available for downloading at: http://logtalk.org/ This release adds a set of entry level examples, improves lint checks for missing meta-predicate directives, improves support for lambda expressions in grammar rules, fixes some optimization bugs, improves library type-check...

Hi, Logtalk 3.19.0 is now available for downloading at: http://logtalk.org/ This release removes all deprecated Logtalk 2.x features; improves the reference manual; adds new library predicates for number comparison; adds new ramdom library predicates; adds cyclomatic complexity and number of entity ...

Hi, Logtalk 3.18.0 is now available for downloading at: http://logtalk.org/ This release adds a new lint checks for detecting suspicious calls and a compiler flag, suspicious_calls/1, to control printing of suspicious call warnings, which now also print the recommended alternative call; improves the...

Hi, Logtalk 3.17.0 is now available for downloading at: http://logtalk.org/ This release improves dynamic binding performance; adds a new lint flag for detecting suspicious calls; adds a new make target for helping benchmarking performance; fixes a multi-threading regression bug; includes improvemen...

Hi, Logtalk 3.16.0 is now available for downloading at: http://logtalk.org/ This release improves support for embedding Logtalk and Logtalk applications, including in saved states and executables; adds new lint flags for more fine-grained control of compiler warnings; changes all exception context a...

Hi, Logtalk 3.15.0 is now available for downloading at: http://logtalk.org/ Logtalk 3.15.0 is now available for downloading. This release improves runtime performance when using static binding; features new and improved compiler lint checks for duplicated directives; adds embedding helper scripts fo...

Hi, Logtalk 3.14.0 is now available for downloading at: http://logtalk.org/ Logtalk 3.14.0 is now available for downloading. Sponsored by Kyndi Inc., this release introduces "parameter variables" for simplifying handling and improving maintainability of parametric entities, adds new error throwing m...

Hi, Logtalk 3.13.0 is now available for downloading at: http://logtalk.org/ Sponsored by Kyndi Inc., this release features a new compiler linter check for trivial fails, a new code metric for documentation quality, alternative library paths files for simplifying application deployment, improved opti...