| ! { dg-do run } |
| ! { dg-additional-options "-fno-range-check -w" } |
| ! |
| ! Check that we can print large constants |
| ! |
| ! "-fno-range-check -w" is used so the testcase compiles even with targets |
| ! that don't support large integer kinds. |
| |
| program test |
| use iso_fortran_env, only : ikinds => integer_kinds |
| implicit none |
| |
| ! Largest integer kind |
| integer, parameter :: k = ikinds(size(ikinds)) |
| integer, parameter :: hk = k / 2 |
| |
| if (k <= 8) stop |
| |
| call check(9000000000000000000_k, "9000000000000000000") |
| call check(90000000000000000000_k, "90000000000000000000") |
| call check(int(huge(1_hk), kind=k), "9223372036854775807") |
| call check(2_k**63, "9223372036854775808") |
| call check(10000000000000000000_k, "10000000000000000000") |
| call check(18446744065119617024_k, "18446744065119617024") |
| call check(2_k**64 - 1, "18446744073709551615") |
| call check(2_k**64, "18446744073709551616") |
| call check(20000000000000000000_k, "20000000000000000000") |
| call check(huge(0_k), "170141183460469231731687303715884105727") |
| call check(huge(0_k)-1, "170141183460469231731687303715884105726") |
| |
| call check(-9000000000000000000_k, "-9000000000000000000") |
| call check(-90000000000000000000_k, "-90000000000000000000") |
| call check(-int(huge(1_hk), kind=k), "-9223372036854775807") |
| call check(-2_k**63, "-9223372036854775808") |
| call check(-10000000000000000000_k, "-10000000000000000000") |
| call check(-18446744065119617024_k, "-18446744065119617024") |
| call check(-(2_k**64 - 1), "-18446744073709551615") |
| call check(-2_k**64, "-18446744073709551616") |
| call check(-20000000000000000000_k, "-20000000000000000000") |
| call check(-huge(0_k), "-170141183460469231731687303715884105727") |
| call check(-(huge(0_k)-1), "-170141183460469231731687303715884105726") |
| call check(-huge(0_k)-1, "-170141183460469231731687303715884105728") |
| |
| call check(2_k * huge(1_hk), "18446744073709551614") |
| call check((-2_k) * huge(1_hk), "-18446744073709551614") |
| |
| contains |
| |
| subroutine check (i, str) |
| implicit none |
| integer(kind=k), intent(in), value :: i |
| character(len=*), intent(in) :: str |
| |
| character(len=100) :: buffer |
| write(buffer,*) i |
| if (adjustl(buffer) /= adjustl(str)) STOP 1 |
| end subroutine |
| |
| end |
| |
