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! { dg-do run }

!

! Test the vendor intrinsic (d)gamma, lgamma and algama/dlgama

! gamma is also part of the Fortran 2008 draft; lgamma is called

! log_gamma in the Fortran 2008 draft.

!

! PR fortran/32980

!

program gamma_test

implicit none

intrinsic :: gamma, lgamma, log_gamma

integer, parameter :: sp = kind(1.0)

integer, parameter :: dp = kind(1.0d0)

real(sp) :: rsp

real(dp) :: rdp

if (abs(gamma(1.0_sp)  - 1.0_sp) > tiny(1.0_sp)) call abort()

if (abs(gamma(1.0_dp)  - 1.0_dp) > tiny(1.0_dp)) call abort()

if (abs(dgamma(1.0_dp) - 1.0_dp) > tiny(1.0_dp)) call abort()

if (abs(lgamma(1.0_sp)) > tiny(1.0_sp)) call abort()

if (abs(lgamma(1.0_dp)) > tiny(1.0_dp)) call abort()

if (abs(log_gamma(1.0_sp)) > tiny(1.0_sp)) call abort()

if (abs(log_gamma(1.0_dp)) > tiny(1.0_dp)) call abort()

if (abs(algama(1.0_sp)) > tiny(1.0_sp)) call abort()

if (abs(dlgama(1.0_dp)) > tiny(1.0_dp)) call abort()

end program gamma_test