On 7/20/17 11:10 AM, Aldo wrote:
On Thursday, 20 July 2017 at 14:59:50 UTC, Steven Schveighoffer wrote:
On 7/20/17 10:38 AM, Aldo wrote:
Hello,
im tring to add nothrow keyword in my code, but compilation fails :
function 'object.opEquals' is not nothrow
its a simple comparison between 2 objects. How to make opEquals
nothrow ?
You can't. Object.opEquals is not nothrow, so object.opEquals is not
nothrow (note the former is the virtual member function, the latter is
a global function which is what the compiler actually calls).
It is a legacy limitation. Until we get rid of all the Object base
methods for things like opEquals and toHash, we will not be able to
fix this.
Im using DerelictGLFW3, to process events im doing this :
glfwSetMouseButtonCallback(window, &onMouseClick);
onMouseClick function must be nothrow.
But now I can't do anything in this function because I can't convert my
code to nothrow.
Can I put a try catch in the body ?
Yes.
extern(C) nothrow
{
void onMouseClick(GLFWwindow* window, int button, int action, int d)
{
try
{
// my code
}
catch
{
}
}
}
it seems its working but what about performances ?
As long as you don't have any code that throws, it should be pretty
close to optimal.
-Steve
