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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gfortran.dg/nint_2.f90 | |
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Diffstat (limited to 'gcc/testsuite/gfortran.dg/nint_2.f90')
| -rw-r--r-- | gcc/testsuite/gfortran.dg/nint_2.f90 | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/nint_2.f90 b/gcc/testsuite/gfortran.dg/nint_2.f90 new file mode 100644 index 000000000..7520727f0 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/nint_2.f90 @@ -0,0 +1,52 @@ +! Test that NINT gives right results even in corner cases +! +! PR 31202 +! http://gcc.gnu.org/ml/fortran/2005-04/msg00139.html +! +! { dg-do run } +! { dg-xfail-run-if "PR 33271, math library bug" { powerpc-ibm-aix powerpc*-*-linux* *-*-mingw* } { "-O0" } { "" } } + real(kind=8) :: a + integer(kind=8) :: i1, i2 + real :: b + integer :: j1, j2 + + a = nearest(0.5_8,-1.0_8) + i2 = nint(nearest(0.5_8,-1.0_8)) + i1 = nint(a) + if (i1 /= 0 .or. i2 /= 0) call abort + + a = 0.5_8 + i2 = nint(0.5_8) + i1 = nint(a) + if (i1 /= 1 .or. i2 /= 1) call abort + + a = nearest(0.5_8,1.0_8) + i2 = nint(nearest(0.5_8,1.0_8)) + i1 = nint(a) + if (i1 /= 1 .or. i2 /= 1) call abort + + b = nearest(0.5,-1.0) + j2 = nint(nearest(0.5,-1.0)) + j1 = nint(b) + if (j1 /= 0 .or. j2 /= 0) call abort + + b = 0.5 + j2 = nint(0.5) + j1 = nint(b) + if (j1 /= 1 .or. j2 /= 1) call abort + + b = nearest(0.5,1.0) + j2 = nint(nearest(0.5,1.0)) + j1 = nint(b) + if (j1 /= 1 .or. j2 /= 1) call abort + + a = 4503599627370497.0_8 + i1 = nint(a,kind=8) + i2 = nint(4503599627370497.0_8,kind=8) + if (i1 /= i2 .or. i1 /= 4503599627370497_8) call abort + + a = -4503599627370497.0_8 + i1 = nint(a,kind=8) + i2 = nint(-4503599627370497.0_8,kind=8) + if (i1 /= i2 .or. i1 /= -4503599627370497_8) call abort + end |