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| author | Mike Sperber <[email protected]> | 2012-03-22 18:00:31 +0100 |
|---|---|---|
| committer | Mike Sperber <[email protected]> | 2012-03-23 09:15:19 +0100 |
| commit | 933e701dac1936c6f15c765b5687fbc623464ec7 (patch) | |
| tree | 95bef4a51a14f512c23348e39cbfb336bc22475b /erts/configure.in | |
| parent | 3087769515ea9bfc75f7d7b8897bc897c7f13931 (diff) | |
| download | otp-933e701dac1936c6f15c765b5687fbc623464ec7.tar.gz otp-933e701dac1936c6f15c765b5687fbc623464ec7.tar.bz2 otp-933e701dac1936c6f15c765b5687fbc623464ec7.zip | |
Unbreak floating point on middle-endian machines.
On some ARMs (and maybe other platforms), doubles are stored with the
the two 32-bit words reversed with respect to more common
architectures.
The symptom is this:
> io_lib:write(1.0).
"0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005299808824"
Detect that and account for it when decoding floats.
Diffstat (limited to 'erts/configure.in')
| -rw-r--r-- | erts/configure.in | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/erts/configure.in b/erts/configure.in index b801994e14..6583db8116 100644 --- a/erts/configure.in +++ b/erts/configure.in @@ -1681,6 +1681,7 @@ case X$erl_xcomp_bigendian in esac AC_C_BIGENDIAN +AC_C_DOUBLE_MIDDLE_ENDIAN dnl fdatasync syscall (Unix only) AC_CHECK_FUNCS([fdatasync]) |