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Function `dmd.expressionsem.canElideCopy`

Determine if copy elision is allowed when copying an expression to a typed storage. This basically elides a restricted subset of so-called "pure" rvalues, i.e. expressions with no reference semantics.


						
				bool canElideCopy(
				
  Expression e,
				
  Type to,
				

				  bool checkMod = false
				

				);

Note

Please avoid using checkMod parameter because canElideCopy() essentially defines a value category and should eventually be merged with isLvalue() to return [isLvalue, allowEmplacement]. Checking type compatibility here is only a stopgap measure.

Authors

Walter Bright

License

Boost License 1.0