CRITICAL_SECTION for set and get single bool value

Question

now writing complicated class and felt that I use to much CRITICAL_SECTION.

As far as I know there are atomic operations for some types, th

Answer 1

Note: This answer applies to Windows and says nothing of other platforms.

There are no InterlockedRead or InterlockedWrite functions; simple reads and writes with the correct integer size (and alignment) are atomic on Windows ("Simple reads and writes to properly-aligned 32-bit variables are atomic operations.").

(and there are no cache problems since a properly-aligned variable is always on a single cache line).

However, reading and modifying such variables (or any other variable) are not atomic:

• Read a bool? Fine. Test-And-Set a bool? Better use InterlockedCompareExchange.
• Overwrite an integer? great! Add to it? Critical section.