JobCFloatXImp Struct Reference

#include <JobCFloatXImp.h>

List of all members.

Public Member Functions

 JobCFloatXImp (bool activate)
 ~JobCFloatXImp ()

Static Public Member Functions

static bool validate ()

Public Attributes

bool activate_

Detailed Description

Definition at line 18 of file JobCFloatXImp.h.

Constructor & Destructor Documentation

JobCFloatXImp::JobCFloatXImp ( bool  activate  ) 

Definition at line 52 of file JobCFloatXImp.cxx.

References activate_.

00052                                   :activate_(a) 
00053 {
00054   if(activate_==true)
00055   {
00056     // only activate invalid operand, division by zero, and
00057     // overflow exceptions
00058 
00059 #if defined(linux)    
00060 #if defined(__GLIBC__)&&(__GLIBC__>2 || __GLIBC__==2 && __GLIBC_MINOR__>=1)
00061     // use fenv
00062     fenv_t newval;
00063     fegetenv(&old_setting);
00064     fegetenv(&newval);
00065     newval.__control_word &= ~(FE_INVALID|FE_DIVBYZERO|FE_OVERFLOW);
00066     fesetenv(&newval);
00067 #else
00068     // fpu control stuff
00069     old_setting = __fpu_control;
00070     fpu_control_t newval =
00071       old_setting & ~(
00072                       _FPU_MASK_IM
00073                       |_FPU_MASK_ZM
00074                       |_FPU_MASK_OM
00075                       );
00076     
00077     _FPU_SETCW(newval);
00078 #endif
00079 #endif
00080 
00081 #if defined(__APPLE__) 
00082 #if defined(__i386__) 
00083   // for intel chips:
00084 #elif defined(__x86_64__)
00085   // For 64bit apple installations84,85
00086 #else 
00087   // for ppc chips:
00088   hexdouble t;
00089   fegetenvd(t.d);                                
00090   t.i.lo |=  FE_ENABLE_DIVBYZERO | FE_ENABLE_OVERFLOW | FE_ENABLE_INVALID;;
00091   fesetenvd(t.d);
00092   signal(SIGFPE,macosx_fpe_handler);
00093 #endif
00094 #endif
00095 
00096   }
00097 }

JobCFloatXImp::~JobCFloatXImp (  ) 

Definition at line 101 of file JobCFloatXImp.cxx.

References activate_.

00102 {
00103 #if defined(linux)
00104 if(activate_==true)
00105 #if defined(__GLIBC__)&&(__GLIBC__>2 || __GLIBC__==2 && __GLIBC_MINOR__>=1)
00106   fesetenv(&old_setting);
00107 #else
00108 _FPU_SETCW(old_setting);
00109 #endif
00110 #endif
00111 }

Member Function Documentation

static bool JobCFloatXImp::validate (  )  [static]

Member Data Documentation

bool JobCFloatXImp::activate_

Definition at line 30 of file JobCFloatXImp.h.

Referenced by JobCFloatXImp(), and ~JobCFloatXImp().

The documentation for this struct was generated from the following files:
Generated on 24 Apr 2018 for loon by  doxygen 1.6.1