X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=src%2Fmain.cpp;h=f1833034b9b674eb3428813bc52340e20ecb5e1d;hb=a69d8466e4ad4dd92488798582e680ae31029038;hp=848debc0ff7fedd8e25c48459444e375b48a2337;hpb=d9c0c3792133f87cd224dc22be428be8ddc016d8;p=ipdf%2Fcode.git

diff --git a/src/main.cpp b/src/main.cpp
index 848debc..f183303 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -3,6 +3,10 @@
 
 #include "controlpanel.h"
 
+#ifndef _GNU_SOURCE
+#define _GNU_SOURCE
+#endif
+#include <fenv.h>
 
 
 int main(int argc, char ** argv)
@@ -11,6 +15,8 @@ int main(int argc, char ** argv)
        	Warn("__STDC_IEC_559__ not defined. IEEE 754 floating point not fully supported.\n");
 	#endif
 
+	// We want to crash if we ever get a NaN.
+	feenableexcept(FE_DIVBYZERO | FE_INVALID | FE_OVERFLOW);
 
 	Debug("Compiled with REAL = %d => \"%s\" sizeof(Real) == %d bytes", REAL, g_real_name[REAL], sizeof(Real));