File: gamma_1.f90

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gcc-arm-none-eabi 15%3A12.2.rel1-1
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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)) STOP 1
if (abs(gamma(1.0_dp)  - 1.0_dp) > tiny(1.0_dp)) STOP 2
if (abs(dgamma(1.0_dp) - 1.0_dp) > tiny(1.0_dp)) STOP 3

if (abs(lgamma(1.0_sp)) > tiny(1.0_sp)) STOP 4
if (abs(lgamma(1.0_dp)) > tiny(1.0_dp)) STOP 5
if (abs(log_gamma(1.0_sp)) > tiny(1.0_sp)) STOP 6
if (abs(log_gamma(1.0_dp)) > tiny(1.0_dp)) STOP 7
if (abs(algama(1.0_sp)) > tiny(1.0_sp)) STOP 8
if (abs(dlgama(1.0_dp)) > tiny(1.0_dp)) STOP 9
end program gamma_test