Warn about calling non-const or non-pure functions in assert expressions

[Hackerpilot]

This causes behavior to differ between debug and release builds.

[ljmf00]

What is the rationale for this? Can you elaborate a bit more?

[maxhaton]

What is the rationale for this? Can you elaborate a bit more?

Side effects in asserts will not happen depending on whether the assert is included or not.

[WebFreak001]

void foo(ref int v) { v++; }

int x = 4;
assert(foo(x));
// x is now either 4 or 5