Restore workaround for floating-point division by zero in SimulationX

modelica-3rdparty · Jan 4, 2025 · 2cb7189 · 2cb7189
1 parent 4d1eabf
commit 2cb7189
Showing 1 changed file with 14 additions and 0 deletions.
diff --git a/ExternData/Resources/C-Sources/libxml2/xpath.c b/ExternData/Resources/C-Sources/libxml2/xpath.c
@@ -142,6 +142,15 @@
  *									*
  ************************************************************************/
 
+#ifdef ITI_NO_FP_EXC
+#ifndef _HUGE_ENUF
+    #define _HUGE_ENUF  1e+300  // _HUGE_ENUF*_HUGE_ENUF must overflow
+#endif
+
+#define INFINITY   ((float)(_HUGE_ENUF * _HUGE_ENUF))
+#define NAN        ((float)(INFINITY * 0.0F))
+#endif
+
 double xmlXPathNAN = 0.0;
 double xmlXPathPINF = 0.0;
 double xmlXPathNINF = 0.0;
@@ -171,8 +180,13 @@ xmlInitXPathInternal(void) {
 #else
     /* MSVC doesn't allow division by zero in constant expressions. */
     double zero = 0.0;
+#ifdef ITI_NO_FP_EXC
+    xmlXPathNAN = NAN;
+    xmlXPathPINF = INFINITY;
+#else
     xmlXPathNAN = 0.0 / zero;
     xmlXPathPINF = 1.0 / zero;
+#endif
     xmlXPathNINF = -xmlXPathPINF;
 #endif
 }