! { dg-do run } ! { dg-options "-std=legacy -ffree-line-length-none -fno-range-check" } program test integer :: count integer :: i integer(kind=1) :: i1 real :: r #define TEST_LOOP(var,from,to,step,total,test,final) \ count = 0 ; do var = from, to, step ; count = count + 1 ; end do ; \ if (count /= total) call abort ; \ if (test (from, to, step, final) /= total) call abort ! Integer loops TEST_LOOP(i, 0, 0, 1, 1, test_i, 1) TEST_LOOP(i, 0, 0, 2, 1, test_i, 2) TEST_LOOP(i, 0, 0, -1, 1, test_i, -1) TEST_LOOP(i, 0, 0, -2, 1, test_i, -2) TEST_LOOP(i, 0, 1, 1, 2, test_i, 2) TEST_LOOP(i, 0, 1, 2, 1, test_i, 2) TEST_LOOP(i, 0, 1, 3, 1, test_i, 3) TEST_LOOP(i, 0, 1, huge(0), 1, test_i, huge(0)) TEST_LOOP(i, 0, 1, -1, 0, test_i, 0) TEST_LOOP(i, 0, 1, -2, 0, test_i, 0) TEST_LOOP(i, 0, 1, -3, 0, test_i, 0) TEST_LOOP(i, 0, 1, -huge(0), 0, test_i, 0) TEST_LOOP(i, 0, 1, -huge(0)-1, 0, test_i, 0) TEST_LOOP(i, 1, 0, 1, 0, test_i, 1) TEST_LOOP(i, 1, 0, 2, 0, test_i, 1) TEST_LOOP(i, 1, 0, 3, 0, test_i, 1) TEST_LOOP(i, 1, 0, huge(0), 0, test_i, 1) TEST_LOOP(i, 1, 0, -1, 2, test_i, -1) TEST_LOOP(i, 1, 0, -2, 1, test_i, -1) TEST_LOOP(i, 1, 0, -3, 1, test_i, -2) TEST_LOOP(i, 1, 0, -huge(0), 1, test_i, 1-huge(0)) TEST_LOOP(i, 1, 0, -huge(0)-1, 1, test_i, -huge(0)) TEST_LOOP(i, 0, 17, 1, 18, test_i, 18) TEST_LOOP(i, 0, 17, 2, 9, test_i, 18) TEST_LOOP(i, 0, 17, 3, 6, test_i, 18) TEST_LOOP(i, 0, 17, 4, 5, test_i, 20) TEST_LOOP(i, 0, 17, 5, 4, test_i, 20) TEST_LOOP(i, 17, 0, -1, 18, test_i, -1) TEST_LOOP(i, 17, 0, -2, 9, test_i, -1) TEST_LOOP(i, 17, 0, -3, 6, test_i, -1) TEST_LOOP(i, 17, 0, -4, 5, test_i, -3) TEST_LOOP(i, 17, 0, -5, 4, test_i, -3) TEST_LOOP(i1, -huge(i1)-1_1, huge(i1), 1_1, int(huge(i1))*2+2, test_i1, huge(i1)+1_1) TEST_LOOP(i1, -huge(i1)-1_1, huge(i1), 2_1, int(huge(i1))+1, test_i1, huge(i1)+1_1) TEST_LOOP(i1, -huge(i1)-1_1, huge(i1), huge(i1), 3, test_i1, 2_1*huge(i1)-1_1) TEST_LOOP(i1, huge(i1), -huge(i1)-1_1, -1_1, int(huge(i1))*2+2, test_i1, -huge(i1)-2_1) TEST_LOOP(i1, huge(i1), -huge(i1)-1_1, -2_1, int(huge(i1))+1, test_i1, -huge(i1)-2_1) TEST_LOOP(i1, huge(i1), -huge(i1)-1_1, -huge(i1), 3, test_i1, -2_1*huge(i1)) TEST_LOOP(i1, huge(i1), -huge(i1)-1_1, -huge(i1)-1_1, 2, test_i1, -huge(i1)-2_1) TEST_LOOP(i1, -2_1, 3_1, huge(i1), 1, test_i1, huge(i1)-2_1) TEST_LOOP(i1, -2_1, 3_1, -huge(i1), 0, test_i1, -2_1) TEST_LOOP(i1, 2_1, -3_1, -huge(i1), 1, test_i1, 2_1-huge(i1)) TEST_LOOP(i1, 2_1, -3_1, huge(i1), 0, test_i1, 2_1) ! Real loops TEST_LOOP(r, 0.0, 1.0, 0.11, 1 + int(1.0/0.11), test_r, 0.0) TEST_LOOP(r, 0.0, 1.0, -0.11, 0, test_r, 0.0) TEST_LOOP(r, 0.0, -1.0, 0.11, 0, test_r, 0.0) TEST_LOOP(r, 0.0, -1.0, -0.11, 1 + int(1.0/0.11), test_r, 0.0) TEST_LOOP(r, 0.0, 0.0, 0.11, 1, test_r, 0.0) TEST_LOOP(r, 0.0, 0.0, -0.11, 1, test_r, 0.0) #undef TEST_LOOP contains function test_i1 (from, to, step, final) result(res) integer(kind=1), intent(in) :: from, to, step, final integer(kind=1) :: i integer :: res res = 0 do i = from, to, step res = res + 1 end do if (i /= final) call abort end function test_i1 function test_i (from, to, step, final) result(res) integer, intent(in) :: from, to, step, final integer :: i integer :: res res = 0 do i = from, to, step res = res + 1 end do if (i /= final) call abort end function test_i function test_r (from, to, step, final) result(res) real, intent(in) :: from, to, step, final real :: i integer :: res res = 0 do i = from, to, step res = res + 1 end do ! final is ignored end function test_r end program test