ISO/IEC TR 18015:2006(E) - Technical Report On C++ Performance.pdf

ISO/IEC TR 18015:2006(E) is a technical report focusing on C++ performance, published on February 15, 2006. It covers various aspects of programming languages, environments, and system software interfaces related to C++. The document includes sections on the scope, normative references, terms, definitions, typical application areas like embedded systems and servers, language features with overheads and strategies, efficient library creation, using C++ in embedded systems, hardware addressing interface, and appendices detailing guidelines for hardware interfaces, timing code, and a bibliography.

The report highlights key language features such as namespaces, type conversion operators, classes and inheritance, exception handling, templates, and programmer-directed optimizations. It also discusses creating efficient libraries with an emphasis on the Standard IOStreams Library and optimizing locales and IOStreams. For embedded systems, it addresses ROMability and hard real-time considerations.

Hardware addressing is covered through interfaces like for C and C++, and for C++. Appendices provide guidelines for using these interfaces, implementation considerations, hardware device connection options, atomic operations, read-modify-write operations, initialization, intrinsic features for hardware register access, and implementation guidelines for the interface.

The document also includes timing code to measure overheads of class operations, template overheads, abstraction penalties, function objects versus function pointers, and synchronized I/O costs. The foreword explains ISO's role in standardization, collaboration with IEC, and the process for publishing technical reports when data differ from typical International Standards. It notes that some elements may be subject to patent rights, which ISO does not identify or hold responsibility for.