Fix code errors, typos, and grammar across 19 files#28

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jwiegley wants to merge 26 commits intocognitive-engineering-lab:mainfrom

jwiegley:fix/review-corrections

Commits on Feb 11, 2026

Fix C++ this. to this-> (compilation error)

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Fix uninitialized loop variable in C++ example (UB)

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Fix twice() computing square instead of double

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Fix normalization math error in setters_and_getters example

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Fix Optional<Box<T>> to Option<Box<T>> in sentinel_values

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Fix ErrorB copy-paste error showing ErrorA message

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Fix Rust snake_case violations in expected_errors examples

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Fix Rust camelCase variable names to snake_case

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Fix subject-verb agreement in abstract_classes.md

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Fix typos in templates.md

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Fix typos and grammar in overloading.md

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Fix typos in iterators.md

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Fix 'beacause' typo in visitor.md

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Fix grammar errors and TODO in rtti.md

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Fix typos in placement_new.md and rvo.md

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Fix typos and missing article in private_constructors.md

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Fix grammar and missing space in user-defined_conversions.md

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Fix subject-verb agreement in sentinel_values.md

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Fix grammar and clarify wording in promotions_and_conversions.md

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Fix 'build in' to 'built-in' in build_systems.md

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Fix article 'a' to 'an' before 'encapsulated' in private_and_friends.md

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Fix missing article and plural in inheritance_and_reuse.md

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Fix 'a methods' to 'a method' in setters_and_getters.md

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Fix grammar in object_identity.md

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Fix missing word in expected_errors.md

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Remove empty link from Concurrency entry in SUMMARY.md

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Fix code errors, typos, and grammar across 19 files#28

Fix code errors, typos, and grammar across 19 files#28
jwiegley wants to merge 26 commits intocognitive-engineering-lab:mainfrom
jwiegley:fix/review-corrections

Commits on Feb 11, 2026

Fix C++ this. to this-> (compilation error)

Fix uninitialized loop variable in C++ example (UB)

Fix twice() computing square instead of double

Fix normalization math error in setters_and_getters example

Fix Optional<Box<T>> to Option<Box<T>> in sentinel_values

Fix ErrorB copy-paste error showing ErrorA message

Fix Rust snake_case violations in expected_errors examples

Fix Rust camelCase variable names to snake_case

Fix subject-verb agreement in abstract_classes.md

Fix typos in templates.md

Fix typos and grammar in overloading.md

Fix typos in iterators.md

Fix 'beacause' typo in visitor.md

Fix grammar errors and TODO in rtti.md

Fix typos in placement_new.md and rvo.md

Fix typos and missing article in private_constructors.md

Fix grammar and missing space in user-defined_conversions.md

Fix subject-verb agreement in sentinel_values.md

Fix grammar and clarify wording in promotions_and_conversions.md

Fix 'build in' to 'built-in' in build_systems.md

Fix article 'a' to 'an' before 'encapsulated' in private_and_friends.md

Fix missing article and plural in inheritance_and_reuse.md

Fix 'a methods' to 'a method' in setters_and_getters.md

Fix grammar in object_identity.md

Fix missing word in expected_errors.md

Remove empty link from Concurrency entry in SUMMARY.md