Inferred Type for Explicit Cast

Adam D. Ruppe via Digitalmars-d digitalmars-d at puremagic.com
Thu Dec 18 15:18:16 PST 2014


On Thursday, 18 December 2014 at 23:06:12 UTC, ketmar via 
Digitalmars-d wrote:
> the only thing this will help is to hide bugs, i believe.

On the contrary, I find explicit casts hide bugs. Suppose you 
write:

size_t a = cast(int) b;

It will compile and run. It'll mostly work. But the cast to int 
probably wasn't intended (it was probably written in 32 bit code 
and not correctly ported to 64 bit).

How often do we also write auto a = cast(T) b;? The difference 
would be the type is written on the left side instead of the 
right. Might make an important differnce when calling functions.

I think the auto cast is a win all around.


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