On Friday, 31 July 2020 at 14:18:15 UTC, Steven Schveighoffer wrote:
On 7/31/20 9:55 AM, Martin Tschierschke wrote:
What would be the idiomatic way to write a floating point division
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 want.

-Steve

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) : (a_expression/b_expression);

???

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