Jonathan M Davis wrote:
> Assertions assert that something is _always_ true and that if it
isn't, the
> program is wrong, while exceptions are for exceptional circumstances
Makes sense.
> You use [enforce] when you want an exception thrown rather than when
you want to
> kill your program due to an error.
To further confuse the issue, assert throws too:
import std.stdio;
import std.algorithm;
void main()
{
try {
assert(false);
} catch (Throwable) {
writeln("an assertion failed");
}
}
The difference is just the exception that is thrown. Throwable seems to
be most general.
From what I've read so far, I take enforce as a replacement to what it
exactly is:
if (condition) {
throw /* ... */;
}
Since I never use assert for that purpose, I take enforce as a shortcut
for the above.
Ali
