The ASM output will probably not be useful for beginners. It might be easier to think of the following example like having the expression square(2) replaced with the value 4 at compile-time.
int a = square(2);
Additionally, mention that constexpr doesn't imply that the expression is guaranteed to be evaluated at compile-time, rather, it makes it explicit that the compiler can do so.
AnthonyCalandra
commented
1 year ago
The ASM output will probably not be useful for beginners. It might be easier to think of the following example like having the expression
square(2)replaced with the value4at compile-time.Additionally, mention that
constexprdoesn't imply that the expression is guaranteed to be evaluated at compile-time, rather, it makes it explicit that the compiler can do so.