What is the best way of implementing assertion checking in C++?

Question

By that I mean, what do I need to do to have useful assertions in my code?

MFC is quite easy, i just use ASSERT(something).

What\'s the non-MFC way?

Answer 1

Microsoft-specific CRT asserts

#include 
#include 
...
// displays nondescript message box when x <= 42
_ASSERT(x > 42);
// displays message box with "x > 42" message when x <= 42
_ASSERTE(x > 42);
// displays message box with computed message "x is ...!" when x <= 42
_ASSERT_EXPR(
   x > 42, (std::stringstream() << L"x is " << x << L"!").str().c_str());