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  1. int x = 42;
  2.  
  3. void printIfDefined(alias name)()
  4. {
  5.     import std.stdio: writeln;
  6.     static if( __traits(compiles, writeln(mixin(name))))
  7.         writeln(mixin(name));
  8. }
  9.  
  10. void main(string[] args)
  11. {
  12.     printIfDefined!"x";
  13.     printIfDefined!"Foo.bar";
  14. }
Success #stdin #stdout 0s 2628KB
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stdin
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Standard input is empty
stdout
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42
https://ideone.com/CS18S6
language:
D (dmd 2.085.0)
created:
8 years ago
visibility:
public

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