book

Effective Modern C++

by Scott Meyers

November 2014

Intermediate to advanced

336 pages

9h 37m

English

O'Reilly Media, Inc.

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Terminology and ConventionsReporting Bugs and Suggesting Improvements
Item 1: Understand template type deduction.Case 1: ParamType is a Reference or Pointer, but not a Universal ReferenceCase 2: ParamType is a Universal ReferenceCase 3: ParamType is Neither a Pointer nor a ReferenceArray ArgumentsFunction ArgumentsItem 2: Understand auto type deduction.Item 3: Understand decltype.Item 4: Know how to view deduced types.IDE EditorsCompiler DiagnosticsRuntime Output
Item 5: Prefer auto to explicit type declarations.Item 6: Use the explicitly typed initializer idiom when auto deduces undesired types.
Item 7: Distinguish between () and {} when creating objects.Item 8: Prefer nullptr to 0 and NULL.Item 9: Prefer alias declarations to typedefs.Item 10: Prefer scoped enums to unscoped enums.Item 11: Prefer deleted functions to private undefined ones.Item 12: Declare overriding functions override.Item 13: Prefer const_iterators to iterators.Item 14: Declare functions noexcept if they won’t emit exceptions.Item 15: Use constexpr whenever possible.Item 16: Make const member functions thread safe.Item 17: Understand special member function generation.
Item 18: Use std::unique_ptr for exclusive-ownership resource management.Item 19: Use std::shared_ptr for shared-ownership resource management.Item 20: Use std::weak_ptr for std::shared_ptr-like pointers that can dangle.Item 21: Prefer std::make_unique and std::make_shared to direct use of new.Item 22: When using the Pimpl Idiom, define special member functions in the implementation file.
Item 23: Understand std::move and std::forward.Item 24: Distinguish universal references from rvalue references.Item 25: Use std::move on rvalue references, std::forward on universal references.Item 26: Avoid overloading on universal references.Item 27: Familiarize yourself with alternatives to overloading on universal references.Abandon overloadingPass by const T&Pass by valueUse Tag dispatchConstraining templates that take universal referencesTrade-offsItem 28: Understand reference collapsing.Item 29: Assume that move operations are not present, not cheap, and not used.Item 30: Familiarize yourself with perfect forwarding failure cases.Braced initializers0 or NULL as null pointersDeclaration-only integral static const and constexpr data membersOverloaded function names and template namesBitfieldsUpshot
Item 31: Avoid default capture modes.Item 32: Use init capture to move objects into closures.Item 33: Use decltype on auto&& parameters to std::forward them.Item 34: Prefer lambdas to std::bind.

Item 35: Prefer task-based programming to thread-based.Item 36: Specify std::launch::async if asynchronicity is essential.Item 37: Make std::threads unjoinable on all paths.Item 38: Be aware of varying thread handle destructor behavior.Item 39: Consider void futures for one-shot event communication.Item 40: Use std::atomic for concurrency, volatile for special memory.
Item 41: Consider pass by value for copyable parameters that are cheap to move and always copied.Item 42: Consider emplacement instead of insertion.