Under windows, we got parsing errors in CSG files, this may

come from load_file_as_string() that may get an additional character
in the end under windows. Added display messages to show end of file.

src/lib/geogram/mesh/mesh_CSG.cpp

@@ -900,6 +900,13 @@ namespace GEO {
             );
         }
 
+        for(index_t i=index_t(source.length())-20; i<source.length(); ++i) {
+            Logger::out("CSG check") << int(source[i])
+                                     << ": \'" << source[i]
+                                     << "\'" << std::endl;
+        }
+
+
         // Add the directory that contains the file to the builder's file path,
         // so that import() instructions are able to find files in the same
         // directory.

src/lib/geogram/mesh/mesh_surface_intersection.h

@@ -63,7 +63,7 @@
 // exact_nt coordinates makes the algorithm  10x to 20x faster
 // and have no risk of underflow / overflow.
 #ifdef GEOGRAM_WITH_GEOGRAMPLUS
-//#define INTERSECTIONS_USE_EXACT_NT
+#define INTERSECTIONS_USE_EXACT_NT
 #endif
 
 namespace GEO {

tests/CSG.robot

@@ -1,7 +1,7 @@
 *** Settings ***
 Test Setup        Prepare Test
 Test Teardown     Cleanup Test
-Force Tags        Intersect    smoke    daily    daily_valgrind
+Force Tags        CSG    smoke    daily    daily_valgrind
 Library           OperatingSystem
 Library           String
 Library           lib/VorpatestLibrary.py