gcc/testsuite/gfortran.fortran-torture/execute/cmplx.f90

   1 ! Test complex munbers
   2 program testcmplx
   3    implicit none
   4    complex(kind=4) c, d
   5    complex(kind=8) z
   6    real(kind=4) x, y
   7    real(kind=8) q
   8
   9    ! cmplx intrinsic
  10    x = 3
  11    y = 4
  12    c = cmplx(x,y)
  13    if (c .ne. (3.0, 4.0)) call abort
  14    x = 4
  15    y = 3
  16    z = cmplx(x, y, 8)
  17    if (z .ne. (4.0, 3.0)) call abort
  18    z = c
  19    if (z .ne. (3.0, 4.0)) call abort
  20
  21    ! dcmplx intrinsic
  22    x = 3
  23    y = 4
  24    z = dcmplx (x, y)
  25    if (z .ne. (3.0, 4.0)) call abort
  26
  27    ! conjucates and aimag
  28    c = (1.0, 2.0)
  29    c = conjg (c)
  30    x = aimag (c)
  31    if (abs (c - (1.0, -2.0)) .gt. 0.001) call abort
  32    if (x .ne. -2.0) call abort
  33    z = (2.0, 1.0)
  34    z = conjg (z)
  35    q = aimag (z)
  36    if (z .ne. (2.0, -1.0)) call abort
  37    if (q .ne. -1.0) call abort
  38
  39    ! addition, subtraction and multiplication
  40    c = (1, 3)
  41    d = (5, 2)
  42    if (c + d .ne. ( 6, 5)) call abort
  43    if (c - d .ne. (-4, 1)) call abort
  44    if (c * d .ne. (-1, 17)) call abort
  45 end program