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OpenACC Tutorial - Adding directives/fr: Difference between revisions
OpenACC Tutorial - Adding directives/fr (view source)
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{{Callout | {{Callout | ||
|title=What does <tt>restrict</tt> really | |title=What does <tt>restrict</tt> really mean ? | ||
|content= | |content= | ||
Declaring a pointer as restricted formally means that for "the lifetime of the pointer, only it or a value derived from it (such as <tt>ptr +1</tt>) will be used to access the object to which it points". This is a guarantee that the ''programmer'' gives to the ''compiler''. If the programmer violates this guarantee, behaviour is undefined. For more information on this concept, see this [https://en.wikipedia.org/wiki/Restrict Wikipedia article]. | Declaring a pointer as restricted formally means that for "the lifetime of the pointer, only it or a value derived from it (such as <tt>ptr +1</tt>) will be used to access the object to which it points". This is a guarantee that the ''programmer'' gives to the ''compiler''. If the programmer violates this guarantee, behaviour is undefined. For more information on this concept, see this [https://en.wikipedia.org/wiki/Restrict Wikipedia article]. | ||