1 files changed, 30 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/derived_constructor_char_3.f90 b/gcc/testsuite/gfortran.dg/derived_constructor_char_3.f90
new file mode 100644
index 00000000000..e23878541bb
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/derived_constructor_char_3.f90
@@ -0,0 +1,30 @@
+! { dg-do compile }
+!
+! PR fortran/51966
+!
+! Contributed by Peter Wind
+!
+
+  type :: Deriv
+    character(len=10) :: name
+  end type
+  character(len=8), dimension(2), parameter :: &
+       DEF_ECOSYSTEMS = (/ "Gridxxxx", "StringYY" /)
+
+  type(Deriv), save :: DepEcoSystem = Deriv(DEF_ECOSYSTEMS(1))
+
+  if (DepEcoSystem%name /= "Gridxxxx" &
+      .or. DepEcoSystem%name(9:9) /= ' ' &
+      .or. DepEcoSystem%name(10:10) /= ' ') call abort()
+  DepEcoSystem%name = 'ABCDEFGHIJ'
+  call Init_EcoSystems()
+  if (DepEcoSystem%name /= "StringYY" &
+      .or. DepEcoSystem%name(9:9) /= ' ' &
+      .or. DepEcoSystem%name(10:10) /= ' ') call abort()
+
+contains
+  subroutine Init_EcoSystems()
+    integer :: i =2
+    DepEcoSystem = Deriv(DEF_ECOSYSTEMS(i))
+  end subroutine Init_EcoSystems
+end