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May 19, 2020 Is it possible to implement operators as ordinary functions? | ||||
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I was wandering if it possible to implement operators as ordinary functions instead of as member functions of a class or struct for example something like this: ``` import std.stdio: writeln; struct Int{ int data = 0; } Int opBinary(string op)(Int x1, Int x2) { static if((op == "+") || (op == "-") || (op == "*") || (op == "/")) { int ret; mixin("ret = x1.data " ~ op ~ " x2.data"); return ret; }else{ static assert(0, "Operator unknown."); } } void main() { Int x = Int(1); Int y = Int(2); writeln("Output: ", x + y); } ``` |
May 19, 2020 Re: Is it possible to implement operators as ordinary functions? | ||||
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Posted in reply to data pulverizer | On Tuesday, 19 May 2020 at 02:36:24 UTC, data pulverizer wrote:
> I was wandering if it possible to implement operators as ordinary functions instead of as member functions of a class or struct for example something like this:
nope, it must be done as member functions.
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May 19, 2020 Re: Is it possible to implement operators as ordinary functions? | ||||
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Posted in reply to Adam D. Ruppe | On Tuesday, 19 May 2020 at 02:42:22 UTC, Adam D. Ruppe wrote:
> On Tuesday, 19 May 2020 at 02:36:24 UTC, data pulverizer wrote:
>> I was wandering if it possible to implement operators as ordinary functions instead of as member functions of a class or struct for example something like this:
>
> nope, it must be done as member functions.
Thanks!
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