On 2010-05-05 14:04:13 -0400, Walter Bright <[email protected]> said:
bearophile wrote:
I have to use a syntax like this often enough inside
unittests:
static assert(!__traits(compiles, foo(10)));
But why? Just use:
foo(10);
To put it more simply than bearophile:
foo(10);
// gives you an error when foo(10) does *not* compile
static assert(!__traits(compiles, foo(10)));
// gives you an error when foo(10) compiles with no error
// (notice the negation operator "!")
It is sometime a good idea to assert that a template cannot be
instantiated with bogus arguments.
--
Michel Fortin
[email protected]
http://michelf.com/
