ifstream_extract_float.cc: Add higher precision tests.

2
2004-01-13  Benjamin Kosnik  <bkoz@redhat.com>

	* testsuite/performance/ifstream_extract_float.cc: Add higher
	precision tests.
	* testsuite/performance/ofstream_insert_float.cc: Same.

From-SVN: r75841

libstdc++-v3/ChangeLog

+2004-01-13  Benjamin Kosnik  <bkoz@redhat.com>
+
+	* testsuite/performance/ifstream_extract_float.cc: Add higher
+	precision tests.
+	* testsuite/performance/ofstream_insert_float.cc: Same.
+	
 2004-01-13  Paolo Carlini  <pcarlini@suse.de>
 
 	* src/locale-misc-inst.cc (__convert_from_v(long),

libstdc++-v3/testsuite/performance/ifstream_extract_float.cc

@@ -26,36 +26,51 @@
 // the GNU General Public License.
 
 #include <fstream>
+#include <sstream>
 #include <testsuite_performance.h>
 
-int main() 
+void test_extraction(int p = 6)
 {
   using namespace std;
   using namespace __gnu_test;
 
-  time_counter time;
-  resource_counter resource;
+  const char* filename = "tmp_perf_float.txt";
   const int iterations = 10000000;
 
+  ostringstream oss;
+  oss << "precision " << p;
+
+  // Construct data.
   {
-    ofstream out("tmp_perf_float.txt");
+    ofstream out(filename);
+    out.precision(p);
     for (int i = 0; i < iterations; ++i)
       {
 	float f = i * 3.14159265358979323846;
-	out << f << "\n";
+	out << f << '\n';
       }
   }
 
   {
-    ifstream in("tmp_perf_float.txt");
+    time_counter time;
+    resource_counter resource;
+
+    ifstream in(filename);
+    in.precision(p);
     float f;
     start_counters(time, resource);  
     for (int j, i = 0; i < iterations; ++i)
       in >> f;
     stop_counters(time, resource);
-    report_performance(__FILE__, "", time, resource);
+    report_performance(__FILE__, oss.str(), time, resource);
   }
 
-  unlink("tmp_perf_int.txt");
-  return 0;
+  unlink(filename);
 };
+
+int main()
+{
+  test_extraction(6);
+  test_extraction(12);
+  return 0;
+}

libstdc++-v3/testsuite/performance/ofstream_insert_float.cc

@@ -26,28 +26,43 @@
 // the GNU General Public License.
 
 #include <fstream>
+#include <sstream>
 #include <testsuite_performance.h>
 
-// based on libstdc++/8761 poor fstream performance (converted to float)
-int main() 
+// Based on libstdc++/8761 poor fstream performance (converted to float)
+void test_insertion(int p = 6)
 {
   using namespace std;
   using namespace __gnu_test;
 
-  time_counter time;
-  resource_counter resource;
+  const char* filename = "tmp_perf_float.txt";
   const int iterations = 10000000;
 
-  ofstream out("tmp_perf_float.txt");
-  start_counters(time, resource);
-  for (int i = 0; i < iterations; ++i)
-    {
-      float f = i * 3.14159265358979323846;
-      out << f << "\n";
-    }
-  stop_counters(time, resource);
-  report_performance(__FILE__, "", time, resource);
-
-  unlink("tmp_perf_float.txt");
-  return 0;
+  ostringstream oss;
+  oss << "precision " << p;
+
+  {
+    time_counter time;
+    resource_counter resource;
+
+    ofstream out(filename);
+    out.precision(p);
+    start_counters(time, resource);
+    for (int i = 0; i < iterations; ++i)
+      {
+	float f = i * 3.14159265358979323846;
+	out << f << '\n';
+      }
+    stop_counters(time, resource);
+    report_performance(__FILE__, oss.str(), time, resource);
+  }
+
+  unlink(filename);
 };
+
+int main()
+{
+  test_insertion(6);
+  test_insertion(12);
+  return 0;
+}