all OS functions should be "nothrow @trusted @nogc"

[Steven Schveighoffer via Digitalmars-d]

On 7/25/17 2:14 PM, Andrei Alexandrescu wrote:
> On 07/25/2017 12:14 PM, Kagamin wrote:
>> While we're at it, check this: 
>> https://github.com/dlang/druntime/blob/master/src/core/stdc/stdio.d#L1047
> 
> That might be a mistake. Is fclose(f); getc(f); defined? -- Andrei

fclose is not @safe.

The charter of @safe (or @trusted in this case) is to assume valid 
pointers for parameters.

-Steve