Idiomatic D code to avoid or detect devision by zero
mt at smartdolphin.de
Mon Aug 3 09:53:40 UTC 2020
On Friday, 31 July 2020 at 14:18:15 UTC, Steven Schveighoffer
> On 7/31/20 9:55 AM, Martin Tschierschke wrote:
>> What would be the idiomatic way to write a floating point
>> occuring inside a loop and handle the case of division by zero.
>> c = a/b; // b might be zero sometimes, than set c to an other
>> value (d).
>> (In the moment I check the divisor being zero or not, with an
>> if-than-else structure,
>> but I find it ugly and so I ask here.)
> c = b == 0 ? d : a/b;
> I don't think a function would be shorter or clearer...
> c = div(a, b, d);
> Alternatively, you could use a type to effect the behavior you
Thanks, for the hints.
I find the ? : - expressions sometimes hard to reed, especially
when a and b are not so simple expressions.
I prefer putting additional bracket around:
c = (b_expression == 0) ? (d_longer_expression) :
More information about the Digitalmars-d-learn