How to use const in C++
How to use const in C++
On the virtues of constness
About the Book
Constness is such an important idea that in certain languages entities are const, in other words, immutable by default. If you want to become a seasoned C++ developer, you must understand how you can use const correctly. In this book, you'll learn when and how to use it in the different contexts it might appear:
constfunctionsconstlocal variablesconstmember variablesconstreturn typesconstparameters
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How to use const in C++ - Team Edition (5 copies)
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Reader Testimonials
Rick Audet
Senior Engineer, Dolby Laboratories
Finished this fun read the other day and filled in a number of gaps in my knowledge of const usage. Recommended.
Table of Contents
- Introduction
-
Arguments against using
const-
constand visual noise -
constis confusing for the developer - It doesn’t matter anyway
-
-
constlocal variables -
constmember variables-
Why would you want to have
constmembers? - Some unexpected implications
- Can we find a workaround?
-
Why would you want to have
-
constfunctions-
Characteristics of
constfunctions -
constoverloads
-
Characteristics of
-
constreturn types-
Returning
constobjects by value -
Returning
constreferences -
Return
constpointers
-
Returning
-
constparameters-
constprimitve data type parameters -
constclass type parameters
-
-
const and smart pointers
-
constand smart pointers as pointers -
constand smart pointers as objects
-
-
constrvalue references- What are rvalue references?
- Binding rules
-
When to use
constrvalue references?
- Summary
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