On Saturday, 13 May 2017 at 08:50:20 UTC, k-five wrote:
Way arguing when a simple code can clarify the subject? right?
If am not clear so consider me as an stupid man, no problem at
all.
but CAN you please solve it for me?
import std.stdio: writeln;
import std.conv: to;
void main( string[] args ){
string str = "10";
int index;
index = to!int( str ); // okay, no exception are thrown
str = "some-words";
index = to!int( str ); // problem, an exception is thrown
}
Please run this code and convert "some-words" to int by using
to! function without facing any exception. Thanks
Please don't take it the wrong way. It just seems that Mike was
as confused by your questions as I was initially. But it's clear
that's just the language barrier, nothing more. See, you said:
Why I do not want to take care of that? Because I just need the
value, if the string is valid, otherwise no matter what the
value of string is.
...but it doesn't make sense to have an int "value" for a string
like "some-words". *Unless* one defines a "not-a-number"
equivalent for an int, i.e. 0 or some other value. That part was
hard to infer from what you were saying :) It might've been
obvious for you, but hard to understand from what you wrote.
This was what made things clear:
I just want to silent this exception...
Mostly, the source of the confusion was the "I don't want to
handle the exception". But in fact what you were asking was was
there a way to somehow ignore the exception and just return some
predefined value in case of an error. So in fact, you did want to
handle the exception (or rather, an exceptional case), you just
wanted to do it without inserting control flow instructions
(try/catch) into your code. I think the latter part already got
covered in others' replies.
Nobody was trying to insult you. With this being a multi-lingual
and multi-cultural community, remember that understanding goes
both ways, and we're sometimes caught right in the middle, in the
clash of mentalities.
