Volatile (computer programming): Difference between revisions

Revision as of 05:39, 16 May 2025

Revision as of 05:42, 16 May 2025

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sharing values with asynchronous [[signal handler]]s;

accessing hardware devices via [[memory-mapped I/O]] (where you can send and receive messages from [[peripheral device]]s by reading from and writing to memory).

Support for these use cases varies considerably among the several programming languagelanguages that have the <code>volatile</code> keyword.

Volatility can have implications regarding function [[calling convention]]s and how variables are stored, accessed and cached.