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| author | Ossama Othman <ossama-othman@users.noreply.github.com> | 2007-05-21 17:40:17 +0000 |
|---|---|---|
| committer | Ossama Othman <ossama-othman@users.noreply.github.com> | 2007-05-21 17:40:17 +0000 |
| commit | adef108f862040e86578bad37e6795cd68b7a31b (patch) | |
| tree | 0bef8998d785361f1c97ed8b97a0c4f14da5f2cf /ACE/ace/OS_NS_math.h | |
| parent | 9333fb43f7606f9c33f0fe7119b70e9a268a3937 (diff) | |
| download | ATCD-adef108f862040e86578bad37e6795cd68b7a31b.tar.gz | |
ChangeLogTag:Mon May 21 10:32:02 UTC 2007 Ossama Othman <ossama_othman at symantec dot com>
Diffstat (limited to 'ACE/ace/OS_NS_math.h')
| -rw-r--r-- | ACE/ace/OS_NS_math.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/ACE/ace/OS_NS_math.h b/ACE/ace/OS_NS_math.h index e1803d9e1a8..e28f1e2045c 100644 --- a/ACE/ace/OS_NS_math.h +++ b/ACE/ace/OS_NS_math.h @@ -47,7 +47,18 @@ inline double ace_log2_helper (double x) return log2 (x); #undef log2 #else +# if defined (_MSC_VER) && (_MSC_VER <= 1400) + // VC++ doesn't support log2() in the standard SDK. It is + // apparently available in the DirectX SDK, however. Generate an + // NaN for now. Note that VC++ doesn't appear to define a NaN + // constant. + ACE_UNUSED_ARG (x); + unsigned long const NaN[2]= { 0xffffffff, 0x7fffffff }; + return *reinterpret_cast<double const *> (NaN); + +# else return ACE_STD_NAMESPACE::log2 (x); +#endif /* _MSC_VER <= 1400 */ #endif /* defined (log2) */ } |