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From "Sean Pearce (JIRA)" <xalan-...@xml.apache.org>
Subject [jira] Created: (XALANC-588) Floating point exceptions in DoubleSupport::initialize() on Solaris 10 (x86)
Date Fri, 02 Dec 2005 15:58:32 GMT
Floating point exceptions in DoubleSupport::initialize() on Solaris 10 (x86)

         Key: XALANC-588
         URL: http://issues.apache.org/jira/browse/XALANC-588
     Project: XalanC
        Type: Bug
  Components: XalanC  
    Versions: 1.10    
 Environment: Sun Solaris 10, Opteron chipset (x86/i386). XercesC++ 2.7  XalanC 1.10

$ CC -V
CC: Sun C++ 5.7 Patch 117831-02 2005/03/30
$ cc -V
cc: Sun C 5.7 Patch 117837-04 2005/05/11
usage: cc [ options] files.  Use 'cc -flags' for details

    Reporter: Sean Pearce

A couple of issues.

Prior to compiling, XERCESCROOT and XALANCROOT are configured to point the their respective
foliders, and the configurations used as follows:
Xerces: ./runConfigure -p solaris -c cc -x CC -b 64 -P $P4SRCROOT/Tools/libs/64/SUN/xerces-c_2_7_0
Xalan:   ./runConfigure -p solaris -c cc -x CC -b 64 -P $P4SRCROOT/Tools/libs/64/SUN/xalanc_1_10

1) To compile on this platform, the 'solaris' entries in runConfigure had to be changed to
use option '-xarch=amd64' in place of '-xarch=v9' (for XercesC and XalanC)

2) After building the libraries, our program was crashing in XalanTransformer::initialize();
(after calling XMLPlatformUtils::Initialize(); of course), with a Floating Point Exception
(FPE) in:
    // We initialize this at here because some
    // platforms have had issues with signals
    // if we call sqrt(-2.01) during static
    // initialization.
    s_NaN.d = std::sqrt(-2.01);
    s_NaN.d = sqrt(-2.01);
#elif !defined(XALAN_NO_STD_NAMESPACE)
    // There seems to be problems with various standard libraries, so
    // this is disabled for now.  We need to revisit this when we
    // update our autoconf/automake system to detect the right value
    // for NaN at configuration time.
    // XALAN_STATIC_ASSERT(std::numeric_limits<double>::has_quiet_NaN);

Removing  #define XALAN_NO_STD_NUMERIC_LIMITS from the Include/SolarisDefinitions.hpp fixes
this problem.

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