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Intel Threading Building Blocks
book

Intel Threading Building Blocks

by James Reinders
July 2007
Intermediate to advanced content levelIntermediate to advanced
332 pages
10h 4m
English
O'Reilly Media, Inc.
Content preview from Intel Threading Building Blocks

Why atomic<T> Has No Constructors

The template class atomic<T> deliberately has no constructors because examples such as GetUniqueInteger are commonly required to work correctly even before all file-scope constructors have been called. If atomic<T> had constructors, a file-scope instance might be initialized after it had been referenced.

You can rely on zero initialization to initialize an atomic<T> to 0. To create an atomic<T> with a specific value, default-construct it first, and afterward assign a value to it. For example:

	atomic<int>
	x; x = 2048;
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Publisher Resources

ISBN: 9780596514808Errata Page