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authorupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
committerupstream source tree <ports@midipix.org>2015-03-15 20:14:05 -0400
commit554fd8c5195424bdbcabf5de30fdc183aba391bd (patch)
tree976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gfortran.dg/transfer_simplify_3.f90
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Diffstat (limited to 'gcc/testsuite/gfortran.dg/transfer_simplify_3.f90')
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diff --git a/gcc/testsuite/gfortran.dg/transfer_simplify_3.f90 b/gcc/testsuite/gfortran.dg/transfer_simplify_3.f90
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+! { 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) call abort()
+ if (bit_pattern_PosInf_i8_hex /= bit_pattern_PosInf_i8) call abort()
+
+ r = transfer(bit_pattern_PosInf_i8,r)
+ if (r /= 1.0_r8_/0.0_r8_) call abort()
+ i = transfer(r,i)
+ if (bit_pattern_PosInf_i8 /= i) call abort()
+
+ r = transfer(bit_pattern_NegInf_i8,r)
+ if (r /= -1.0_r8_/0.0_r8_) call abort()
+ i = transfer(r,i)
+ if (bit_pattern_NegInf_i8 /= i) call abort()
+
+ r = transfer(bit_pattern_PosInf_i8_p,r)
+ if (r /= 1.0_r8_/0.0_r8_) call abort()
+ i = transfer(r,i)
+ if (bit_pattern_PosInf_i8_p /= i) call abort()
+
+ r = transfer(bit_pattern_NegInf_i8_p,r)
+ if (r /= -1.0_r8_/0.0_r8_) call abort()
+ i = transfer(r,i)
+ if (bit_pattern_NegInf_i8_p /= i) call abort()
+END PROGRAM TestInfinite