"John Colvin"  wrote in message news:mmnpehpddzkduycyd...@forum.dlang.org...

So what is the recommended way of inserting a check of the sort that Ola would like?

debug enforce(expr);

perhaps? Seeing as that statement is completely missing outside of debug mode, the compiler can't do anything much about it.

Don't use -release.

P.S. What about version(assert)? Could the optimiser work with this:

if(x > 7) x++;
version(assert) auto testResult = x;
assert(x <= 7);

No, version(assert) is just about doing introspection on the compiler's configuration. In release mode that code doesn't even get semantically analysed.

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