February 2024
Intermediate to advanced
1376 pages
40h 6m
English
Content preview from Professional C++, 6th Edition
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11Modules, Header Files, and Miscellaneous Topics
This chapter starts with a detailed discussion on how modules allow you to write reusable components and contrasts this against old-style header files. It also explains what preprocessor directives are and gives some examples of why C-style preprocessor macros are dangerous. The chapter then explains the concept of linkage, which specifies where named entities can be accessed from, and explains the one definition rule. The final part of the chapter discusses the different uses of the static and extern keywords, as well as C-style variable-length argument lists.
MODULES
Modules are introduced in Chapter 1, “A Crash Course in C++ and the Standard Library,” and you have already authored and consumed your own simple modules in previous chapters. However, there ...
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