Created
June 29, 2015 08:27
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| program test_nearest | |
| integer, parameter :: R8P = 8 | |
| real(R8P) :: z | |
| #ifdef __GFORTRAN__ | |
| real(R8P), parameter:: ZeroR8 = nearest(1._R8P, 1._R8P) - nearest(1._R8P,-1._R8P) | |
| real(R8P), parameter:: ZeroR8_2 = nearest(1._R8P, 1._R8P) - 1._R8P | |
| #endif | |
| real(R8P), parameter:: ZeroR8_3 = epsilon(z) | |
| #ifdef __GFORTRAN__ | |
| write (*,"((G50.15))") ZeroR8 | |
| write (*,"((G50.15))") ZeroR8_2 | |
| #endif | |
| write (*,"((G50.15))") ZeroR8_3 | |
| end program test_nearest |
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~/tmp % gfortran ./foo.F90 && ./a.out
0.333066907387547E-15
0.222044604925031E-15
0.222044604925031E-15
~/tmp % pgfortran ./foo.F90 && ./a.out
0.222044604925031E-15