Does `sizeof(short int)` Depend on the Compiler or the Machine Running the Code?

Is sizeof Evaluated at Compilation Time or Run Time?

When dealing with the sizeof operator in C , it's important to understand its evaluation time.

Question:

In the following code snippet, does the result of sizeof(short int) depend on the machine where the compiler executes or the machine where the executable file runs?

<code class="cpp">sizeof(short int)</code>

Answer:

sizeof is a compile time operator, meaning it is evaluated during the compilation process before the program is executed. It determines the size of a data type or an object, and this information is then used by the compiler to generate the final executable code.

Therefore, the result of sizeof(short int) will be the same regardless of the machine on which the compiler or the executable file runs. The size of a data type is predefined and does not change based on the runtime environment.

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