<p>I usually never see test for new in C++ and I was wondering why.</p>

<p><code>Foo *f = new Foo;</code></p>

<p><code>// f is assumed as allocated, why usually, nobody test the return of new?</code></p>

As per the current standard,
new
never returns
NULL
, it throws a std::bad_alloc instead. If you don't want new to throw(as per the old standard) but rather return NULL you should call it by postfixing it with "
(std::nothrow)
".
i.e.
```
```
Foo* foo = new (std::nothrow) Foo;
```
```
Of course, if you have a very old or possibly broken toolchain it might not follow the standard.