1! Program to test derived type initializers and constructors 2program der_init 3 implicit none 4 type t 5 integer :: i 6 integer :: j = 4 7 end type 8 integer :: m, n 9 10 ! Explicit initializer 11 type (t) :: var = t(1, 2) 12 ! Type (default) initializer 13 type (t) :: var2 14 ! Initialization of arrays 15 type (t), dimension(2) :: var3 16 type (t), dimension(2) :: var4 = (/t(7, 9), t(8, 6)/) 17 18 if (var%i .ne. 1 .or. var%j .ne. 2) STOP 1 19 if (var2%j .ne. 4) STOP 2 20 var2 = t(6, 5) 21 if (var2%i .ne. 6 .or. var2%j .ne. 5) STOP 3 22 23 if ((var3(1)%j .ne. 4) .or. (var3(2)%j .ne. 4)) STOP 4 24 if ((var4(1)%i .ne. 7) .or. (var4(2)%i .ne. 8) & 25 .or. (var4(1)%j .ne. 9) .or. (var4(2)%j .ne. 6)) STOP 5 26 27 ! Non-constant constructor 28 n = 1 29 m = 5 30 var2 = t(n, n + m) 31 if (var2%i .ne. 1 .or. var2%j .ne. 6) STOP 6 32end program 33