newbie problem with nothrow

Temtaime via Digitalmars-d-learn digitalmars-d-learn at puremagic.com
Mon Oct 31 10:04:28 PDT 2016


On Monday, 31 October 2016 at 16:55:51 UTC, WhatMeWorry wrote:
>
> Is there a way to turn off nothrow or work around it? Because 
> to me it looks like nothrow prevents me from doing anything 
> useful.
>
> extern(C) void onKeyEvent(GLFWwindow* window, int key, int 
> scancode, int action, int modifier) nothrow
> {
>     if(queue.roomInQueue())
>     {
>         auto event = new Event;
>         event.type = EventType.keyboard;
>         event.keyboard.key = cast(Key) key;
>
>         // etc.
> }
>
> Error: function 'event_handler.CircularQueue.roomInQueue' is 
> not nothrow
> Error: function 'event_handler.onKeyEvent' is nothrow yet may 
> throw
>
>
> The compiler wouldn't let me just remove "nothrow" from the 
> function. I tried a kludge where I had this function just pass 
> all its parameters to another throwable function, but this 
> caused errors as well.
>
> So I'm stuck.  Anyone know how to proceed.
> Thanks.

Wrap a body of the function to try {} catch {} and it'll work.


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