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! { dg-do link }

!

! This test checks whether the largest possible

! floating-point number works. That's usually

! REAL(16) -- either because the hardware supports it or

! because of libquadmath. However, it can also be

! REAL(10) or REAL(8)

!

program test_qp

   use iso_fortran_env, only: real_kinds

   implicit none

   integer, parameter :: QP = real_kinds(ubound(real_kinds,dim=1))

   real(QP), parameter :: Z1 = 1,HALF_PI = asin(Z1),PI = HALF_PI+HALF_PI

   real(QP) :: x = 0.124_QP

   complex(QP) :: z = 0.124_QP

   print *, 'kind = ', qp

   print *, x

   print *, PI

   print *, 16*atan(0.2_QP)-4*atan(Z1/239)

   print *, sin(PI)

   print *, cos(HALF_PI)

   print *, asinh(PI)

   print *, erfc(Z1)

   print *, epsilon(x)

   print *, precision(x)

   print *, digits(x)

   print *, z

   print *, PI*cmplx(0.0_qp, 1.0_qp)

! Disable the complex functions as not all "long-double" systems have

! a libm with those C99 functions. (libquadmath had), cf. PR 46584

!   print *, 16*atan(0.2_QP)-4*atan(Z1/239)

!   print *, sin(z)

!   print *, cos(z)

!   print *, sinh(z) ! asinh not implemented in libquadmath, cf. PR 46416

   print *, precision(z)

end program test_qp