Changeset 1658 for trunk/test/Suite.cc

Timestamp:

Dec 17, 2008, 4:02:00 PM (14 years ago)

Author:

Peter

Message:

Adding functions to use for fix precision comparisons (refs #470)

File:

• trunk/test/Suite.cc (modified) (1 diff)

trunk/test/Suite.cc

@@ -89 +89 @@
     double last_error_bound = n*std::numeric_limits<double>().epsilon()*
       std::min(std::abs(a), std::abs(b));
+    return equal_fix(a, b, last_error_bound);
+  }
+
+
+  bool Suite::equal_fix(double a, double b, double margin)
+  {
+    // using the negated comparison to catch NaN problems
     if (!(std::abs(a-b) <= last_error_bound)){
       err() << "Error: Comparing " << a << " and " << b 
             << "\n  Difference: " << a - b
-            << "\n  expected difference to be at most " << last_error_bound
+            << "\n  expected difference to be at most " << margin
             << std::endl;
       return false;