From 08d1f279b049008a84f6a43de3b91e7adc1a19ff Mon Sep 17 00:00:00 2001
From: Sylvain Pion <Sylvain.Pion@sophia.inria.fr>
Date: Sun, 15 Jun 2008 18:31:52 +0000
Subject: [PATCH] - Stop g++ 4.3.1 -O2 constant propagation using
 CGAL_IA_STOP_CPROP(). - Remove unused function FPU_empiric_test_mul().

---
 .../test/Number_types/rounding_modes.cpp      | 20 +------------------
 1 file changed, 1 insertion(+), 19 deletions(-)

diff --git a/Number_types/test/Number_types/rounding_modes.cpp b/Number_types/test/Number_types/rounding_modes.cpp
index c9a054df778..7892a99a83b 100644
--- a/Number_types/test/Number_types/rounding_modes.cpp
+++ b/Number_types/test/Number_types/rounding_modes.cpp
@@ -26,7 +26,7 @@ double IA_min_double;
 CGAL::FPU_CW_t
 FPU_empiric_test()
 {
-    IA_min_double = CGAL_IA_MIN_DOUBLE;
+    IA_min_double = CGAL_IA_STOP_CPROP(CGAL_IA_MIN_DOUBLE);
     double y = 1.0, z = -1.0;
     double ye, ze;
     ye = y - IA_min_double;
@@ -37,24 +37,6 @@ FPU_empiric_test()
     return CGAL_FE_TOWARDZERO;
 }
 
-// This variable is global in order to stop constant propagation.
-double m = 0.5;
-
-CGAL::FPU_CW_t FPU_empiric_test_mul ()
-{
-    int i;
-    for (i=0; i<10; i++) {m*=m; /* std::cout <<c << std::endl; */ }
-    double a = m*m;
-    double b = (-m)*m;
-    std::cout << "m = " << m << "\n m*m = " << a << "\n (-m)*m = " << b;
-    std::cout << std::endl;
-// Note: it's not supposed to work here like that.
-    if ((a == 0.0) && (b == 0.0)) return CGAL_FE_TONEAREST;
-    if (a > 0.0) return CGAL_FE_UPWARD;
-    if (b < 0.0) return CGAL_FE_DOWNWARD;
-    return CGAL_FE_TOWARDZERO;
-}
-
 void print_rounding_name (CGAL::FPU_CW_t r)
 {
   switch (r) {