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Hi,

A principal use of the sizeof operator is in communication with routines such as storage allocators. A storage-allocation function might accept a size (in bytes)and allocate and return a...

Undefined Behavior/Side Effects :(

The standards define "Between two sequence points, an object is modified more than once, or is modified and the prior value is accessed other than to determine...

++a + ++a + ++a = undefined
++a + ++a + ++a + ++a + ++a = undefined

Because C expressions can contain side effects, issues of sequencing are important in expression...