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(parent: d81780b) | patch
Add autoconf test to detect x87-style double rounding, as described in
authorMark Dickinson <dickinsm@gmail.com>
Sun, 4 Jan 2009 12:29:36 +0000 (12:29 +0000)
committerMark Dickinson <dickinsm@gmail.com>
Sun, 4 Jan 2009 12:29:36 +0000 (12:29 +0000)
commit04b272336d8f4842d752449427ebef608dfcaca3
tree52a5448d9c9435d6c1edfba8c0235153a76c18f5tree | snapshot
parentd81780b8b0de6f0a191335da1ca1a040626bf97ecommit | diff
Add autoconf test to detect x87-style double rounding, as described in
issue #2937.  This information can be helpful for diagnosing platform-
specific problems in math and cmath.  The result of the test also
serves as a fairly reliable indicator of whether the x87 floating-point
instructions (as opposed to SSE2) are in use on Intel x86/x86_64 systems.
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