Avoiding unused variables warnings when using assert() in a Release build

Question

Sometimes a local variable is used for the sole purpose of checking it in an assert(), like so -

int Result = Func();
assert( Result == 1 );

<

Answer 1

With C++17 we can do:

[[maybe_unused]] int Result = Func();

though it involves a bit of extra typing compared to a assert substitution. See this answer.

Note: Added this because is the first google hit for "c++ assert unused variable".