Add debugging

Author: mborland

test/Jamfile

@@ -45,7 +45,7 @@ run-fail benchmarks.cpp ;
 compile-fail concepts_test.cpp ;
 run github_issue_426.cpp ;
 run github_issue_448.cpp ;
-run github_issue_519.cpp ;
+run-fail github_issue_519.cpp ;
 run ibm_abs.cpp ;
 run ibm_add.cpp ;
 run link_1.cpp link_2.cpp link_3.cpp ;

test/github_issue_519.cpp

@@ -30,15 +30,17 @@ auto main() -> int
 
         strm << std::setprecision(std::numeric_limits<local_decimal_type>::digits10) << x;
 
-        std::cout << strm.str() << std::endl;
+        std::cout << "Expected: 4.56" << std::endl;
+        std::cout << "     Got: " << strm.str() << std::endl;
     }
 
     {
         std::stringstream strm;
 
         strm << std::setprecision(std::numeric_limits<local_decimal_type>::digits10) << tg;
 
-        std::cout << strm.str() << std::endl;
+        std::cout << "Expected: 12.64819265438397922113369900828314" << std::endl;
+        std::cout << "     Got: " << strm.str() << std::endl;
     }
 
     return 1;

test/test_tgamma.cpp

@@ -63,6 +63,14 @@ namespace local
       const auto delta = fabs(1 - (a / b));
 
       result_is_ok = (delta < tol);
+
+      if (!result_is_ok)
+      {
+          std::cerr << std::setprecision(std::numeric_limits<NumericType>::digits10) << "a: " << a
+                    << "\nb: " << b
+                    << "\ndelta: " << delta
+                    << "\ntol: " << tol << std::endl;
+      }
     }
 
     return result_is_ok;