| ! { dg-do run } |
| ! { dg-options "-fno-range-check" } |
| ! PR fortran/32083 |
| ! |
| ! Test transfers of +Inf and -Inf |
| ! Testcase contributed by Jos de Kloe <kloedej@knmi.nl> |
| ! |
| |
| PROGRAM TestInfinite |
| IMPLICIT NONE |
| integer, parameter :: i8_ = Selected_Int_Kind(18) ! = integer*8 |
| integer, parameter :: r8_ = Selected_Real_Kind(15,307) ! = real*8 |
| |
| integer(i8_), parameter :: bit_pattern_PosInf_i8_p = 9218868437227405312_i8_ |
| integer(i8_), parameter :: bit_pattern_NegInf_i8_p = -4503599627370496_i8_ |
| |
| integer(i8_) :: bit_pattern_PosInf_i8 = 9218868437227405312_i8_ |
| integer(i8_) :: bit_pattern_NegInf_i8 = -4503599627370496_i8_ |
| |
| integer(i8_) :: bit_pattern_PosInf_i8_hex |
| integer(i8_) :: bit_pattern_NegInf_i8_hex |
| |
| integer(i8_) :: i |
| real(r8_) :: r |
| |
| data bit_pattern_PosInf_i8_hex /z'7FF0000000000000'/ |
| !data bit_pattern_NegInf_i8_hex /z'FFF0000000000000'/ |
| ! not portable, replaced by: |
| bit_pattern_NegInf_i8_hex = ibset(bit_pattern_PosInf_i8_hex,63) |
| |
| if (bit_pattern_NegInf_i8_hex /= bit_pattern_NegInf_i8) STOP 1 |
| if (bit_pattern_PosInf_i8_hex /= bit_pattern_PosInf_i8) STOP 2 |
| |
| r = transfer(bit_pattern_PosInf_i8,r) |
| if (r /= 1.0_r8_/0.0_r8_) STOP 3 |
| i = transfer(r,i) |
| if (bit_pattern_PosInf_i8 /= i) STOP 4 |
| |
| r = transfer(bit_pattern_NegInf_i8,r) |
| if (r /= -1.0_r8_/0.0_r8_) STOP 5 |
| i = transfer(r,i) |
| if (bit_pattern_NegInf_i8 /= i) STOP 6 |
| |
| r = transfer(bit_pattern_PosInf_i8_p,r) |
| if (r /= 1.0_r8_/0.0_r8_) STOP 7 |
| i = transfer(r,i) |
| if (bit_pattern_PosInf_i8_p /= i) STOP 8 |
| |
| r = transfer(bit_pattern_NegInf_i8_p,r) |
| if (r /= -1.0_r8_/0.0_r8_) STOP 9 |
| i = transfer(r,i) |
| if (bit_pattern_NegInf_i8_p /= i) STOP 10 |
| END PROGRAM TestInfinite |
