Which Data Types Are Naturally Atomic in GNU C/C on a 64-bit System?

Which types are naturally atomic in gnu C and gnu C on a 64-bit computer?

The language standards for C and C do not guarantee atomic reads and writes for any data types. However, some compilers may implement certain optimizations that make certain types atomic. For example, on a 64-bit computer, the following types may be atomic on some compilers:

• int
• long long
• float
• double

However, it is important to note that these guarantees are not universal and may vary depending on the compiler and architecture. It is always best to consult the documentation for your specific compiler to determine which types are guaranteed to be atomic.

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