Obtaining type and value of a variable named in another variable
Tejas
notrealemail at gmail.com
Sun Oct 17 02:25:58 UTC 2021
On Saturday, 16 October 2021 at 23:07:22 UTC, DLearner wrote:
> On Saturday, 16 October 2021 at 19:29:59 UTC, Dennis wrote:
>> On Saturday, 16 October 2021 at 19:28:04 UTC, DLearner wrote:
>>> How does one obtain from strVar:
>>> 1. The type of fooVar;
>>
>> `typeof(mixin(strVar))`
>>
>>> 2. The value of fooVar?
>>
>> `mixin(strVar)`
> ```
> void main() {
>
> import std.stdio;
>
> int fooVar = 4;
>
> string strVar;
>
> strVar = "fooVar";
> writeln(typeof(mixin(strVar)));
> writeln(mixin(strVar));
> }
> ```
> Failed with 2x "Error: variable `strVar` cannot be read at
> compile time".
I don't know how to do it with a string, but are you willing to
do it with an `alias` instead? You won't be able to change it
later, but then I don't know of any other way.
```d
void main() {
import std.stdio;
int fooVar = 4;
//string strVar;
alias strVar = fooVar;
writeln(typeid(strVar));
writeln(strVar);
}
```
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