--- /dev/null
+! { dg-do run }
+! { dg-options "-Wcharacter-truncation" }
+! Tests the fix for PR31266: references to CHARACTER
+! components lead to the wrong length being assigned to substring
+! expressions.
+type data
+ character(len=5) :: c
+end type data
+type(data), dimension(5), target :: y
+character(len=2), dimension(5) :: p
+character(len=3), dimension(5) :: q
+
+y(:)%c = "abcdef" ! { dg-warning "in assignment \\(5/6\\)" }
+p(1) = y(1)%c(3:)
+if (p(1).ne."cd") call abort()
+
+p(1) = y(1)%c ! { dg-warning "in assignment \\(2/5\\)" }
+if (p(1).ne."ab") call abort()
+
+q = "xyz"
+p = q ! { dg-warning "CHARACTER expression will be truncated in assignment \\(2/3\\)" }
+if (any (p.ne.q(:)(1:2))) call abort()
+end