Document deprecation of 'is' for static arrays (#3710)

pbackus · web-flow · commit 1845397b703a · 2023-11-07T13:27:08.000+01:00
This was deprecated in DMD 2.072.0, but the corresponding spec PR was never merged. See dlang/dmd#6089
diff --git a/spec/expression.dd b/spec/expression.dd
@@ -688,6 +688,10 @@ $(GNAME IdentityExpression):
     ---
     )
 
+    $(DDOC_DEPRECATED Use of `is` to compare static arrays by address and
+    length is deprecated. To do so, use the slice operator and compare slices
+    of the arrays instead; for example, `a1[] is a2[]`.)
+
     $(P For other operand types, identity is defined as being the same
         as equality.
     )

Original file line number	Diff line number	Diff line change
`@@ -688,6 +688,10 @@ $(GNAME IdentityExpression):`
`688`	`688`	`---`
`689`	`689`	`)`
`690`	`690`
	`691`	+ $(DDOC_DEPRECATED Use of `is` to compare static arrays by address and
	`692`	`+ length is deprecated. To do so, use the slice operator and compare slices`
	`693`	+ of the arrays instead; for example, `a1[] is a2[]`.)
	`694`	`+`
`691`	`695`	`$(P For other operand types, identity is defined as being the same`
`692`	`696`	`as equality.`
`693`	`697`	`)`