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30 lines
870 B
Fortran
30 lines
870 B
Fortran
! { dg-do run }
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!
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! Test the vendor intrinsic (d)gamma, lgamma and algama/dlgama
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! gamma is also part of the Fortran 2008 draft; lgamma is called
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! log_gamma in the Fortran 2008 draft.
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!
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! PR fortran/32980
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!
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program gamma_test
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implicit none
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intrinsic :: gamma, lgamma, log_gamma
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integer, parameter :: sp = kind(1.0)
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integer, parameter :: dp = kind(1.0d0)
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real(sp) :: rsp
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real(dp) :: rdp
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if (abs(gamma(1.0_sp) - 1.0_sp) > tiny(1.0_sp)) STOP 1
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if (abs(gamma(1.0_dp) - 1.0_dp) > tiny(1.0_dp)) STOP 2
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if (abs(dgamma(1.0_dp) - 1.0_dp) > tiny(1.0_dp)) STOP 3
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if (abs(lgamma(1.0_sp)) > tiny(1.0_sp)) STOP 4
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if (abs(lgamma(1.0_dp)) > tiny(1.0_dp)) STOP 5
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if (abs(log_gamma(1.0_sp)) > tiny(1.0_sp)) STOP 6
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if (abs(log_gamma(1.0_dp)) > tiny(1.0_dp)) STOP 7
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if (abs(algama(1.0_sp)) > tiny(1.0_sp)) STOP 8
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if (abs(dlgama(1.0_dp)) > tiny(1.0_dp)) STOP 9
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end program gamma_test
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