Extend the Ex42 observer pattern with Hint objects so each
observer receives the reason for the update instead of
querying the subject:
- Subject::notify() and Observer::update() now take a
const Hint& argument.
- Add LightHint and WaitHint carrying the traffic light
state and WAIT button state, defined in Pelican.h.
- Pole dispatches on hint type using dynamic_cast.
- The Pole constructor sets its initial lights directly
from the Pelican's current state, since no notification
is sent at startup. Stopgap until the initial update
is handled properly.
Co-authored-by: Qwen 3.8 27B <qwen3.8_27b-q3_k_xl@lmstudio.local>
Refactor the Pelican crossing exercise to use the Observer
pattern: Pelican acts as Subject and each Pole observes it,
replacing direct calls through the owned Pole pointer.
Co-authored-by: Qwen 3.8 27B <qwen3.8_27b-q3_k_xl@lmstudio.local>
Fetch the Boost CMake release archive (default 1.92.0) and build only
the libraries requested via find_package(Boost COMPONENTS ...), plus
their dependencies. Each component is exposed as Boost::<name>, e.g.
Boost::serialization. cmat now uses this module instead of a system
Boost install, so the Boost exercises are always available.
Also fix SolutionEx62Bonus: Employee.h used base_object without
including <boost/serialization/base_object.hpp>. This was not an
intentional exercise bug; it likely relied on a transitive include
in older Boost versions.
Co-authored-by: Claude Opus 5.5 <claude.opus5.5@anthropic.com>
Comment out the loop that copied BASE_OPTIONS (minus -Werror) into
CMAT_OPTIONS so exercise targets no longer inherit the project
warning flags.
Co-authored-by: Qwen 3.8 27B <qwen3.8_27b-q3_k_xl@lmstudio.local>
Rename the virtual tick() override in PelicanTimer to doExpired()
and give the base Timer class a non-virtual tick() that checks for
expiration and dispatches to doExpired(). The exercise starting
point now matches SolutionEx22.
Co-authored-by: Qwen 3.8 27B <qwen3.8_27b-q3_k_xl@lmstudio.local>
Drop the Visual Studio artifact cleanup script; CMake handles
builds now and the original copy remains in 397/.
Co-authored-by: Qwen 3.8 27B <qwen3.8_27b-q3_k_xl@lmstudio.local>
Drop the pre-2010 Visual Studio project files (.vcproj) left over
from the original course material. CMake builds everything now and
the original copies remain in 397/.
Co-authored-by: Qwen 3.8 27B <qwen3.8_27b-q3_k_xl@lmstudio.local>
Drop UpgradeLog.htm from Ex11; it is generated by Visual Studio
when upgrading a project and has no place in the course material.
The original copy remains in 397/.
Co-authored-by: Qwen 3.8 27B <qwen3.8_27b-q3_k_xl@lmstudio.local>
Drop the old GCC 3.4.2 makefile/make.mk pairs from Ex11, Ex11bug and
SolutionEx11bug; CMake builds everything now. Also remove the VS build
artifacts (pelican.obj.enc, unsuccessfulbuild markers) and prune the
now-empty Debug, Release, Backup and x64 directories. Original copies
remain in 397/.
Co-authored-by: Qwen 3.8 27B <qwen3.8_27b-q3_k_xl@lmstudio.local>
Drop the .sln, .vcxproj, .vcxproj.filters, .vcxproj.user and .suo
files from cmat/. CMake is the build system for the course material,
and the original copies are preserved in 397/ as the source backup.
Co-authored-by: Qwen 3.8 27B <qwen3.8_27b-q3_k_xl@lmstudio.local>
Add a CMakeLists.txt to each exercise directory, included from
cmat/CMakeLists.txt, so every exercise and solution becomes a buildable
target. GUI exercises link the curses-based DOS_Unix implementations on
Unix-like systems; the Windows-specific DOS variants are not compiled.
Exercises without a portable path or with missing dependencies (Boost)
are reported as not available at configure time.
Targets are excluded from the default build and built by name, e.g.
`cmake --build build --target Ex11`, so intentionally buggy exercises
such as Ex21 do not break the default build.
Also fix two portability issues: rename Ex11bug/pole.h to Pole.h for
case-sensitive filesystems and drop the extra Light:: qualification in
SolutionEx71A/Light.h. Document build commands and layout in AGENTS.md.
Co-authored-by: Qwen 3.8 27B <qwen3.8_27b-q3_k_xl@lmstudio.local>
portersky
