[Boost-commit] svn:boost r40780 - trunk/boost/math/tools

From: john_at_[hidden]
Date: 2007-11-05 07:07:48

Author: johnmaddock
Date: 2007-11-05 07:07:47 EST (Mon, 05 Nov 2007)
New Revision: 40780
URL: http://svn.boost.org/trac/boost/changeset/40780

Log:
Disabled long double support for Intel on Linux prior to version 10.
Text files modified: 
   trunk/boost/math/tools/config.hpp |    15 +++++++++++++++                         
   1 files changed, 15 insertions(+), 0 deletions(-)

Modified: trunk/boost/math/tools/config.hpp
==============================================================================
--- trunk/boost/math/tools/config.hpp	(original)
+++ trunk/boost/math/tools/config.hpp	2007-11-05 07:07:47 EST (Mon, 05 Nov 2007)
@@ -39,6 +39,21 @@
 //
 #  define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
 #endif
+#if defined(unix) && (__INTEL_COMPILER <= 1000)
+//
+// Intel compiler prior to version 10 has sporadic problems
+// calling the long double overloads of the std lib math functions:
+// calling ::powl is OK, but std::pow(long double, long double) 
+// may segfault depending upon the value of the arguments passed 
+// and the specific Linux distribution.
+//
+// We'll be conservative and disable long double support for this compiler.
+//
+// Comment out this #define and try building the tests to determine whether
+// your Intel compiler version has this issue or not.
+//
+#  define BOOST_MATH_NO_LONG_DOUBLE_MATH_FUNCTIONS
+#endif
 
 #if defined(BOOST_NO_EXPLICIT_FUNCTION_TEMPLATE_ARGUMENTS) || BOOST_WORKAROUND(__SUNPRO_CC, <= 0x590)