stof.cc: Improve check on long double limits.

2008-07-03  Paolo Carlini  <paolo.carlini@oracle.com>

	* testsuite/21_strings/basic_string/numeric_conversions/char/stof.cc:
	Improve check on long double limits.
	* testsuite/21_strings/basic_string/numeric_conversions/char/stod.cc:
	Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stof.cc: Likewise.
	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
	stod.cc: Likewise.

From-SVN: r137428

libstdc++-v3/ChangeLog

 2008-07-03  Paolo Carlini  <paolo.carlini@oracle.com>
 
+	* testsuite/21_strings/basic_string/numeric_conversions/char/stof.cc:
+	Improve check on long double limits.
+	* testsuite/21_strings/basic_string/numeric_conversions/char/stod.cc:
+	Likewise.
+	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
+	stof.cc: Likewise.
+	* testsuite/21_strings/basic_string/numeric_conversions/wchar_t/
+	stod.cc: Likewise.
+
+2008-07-03  Paolo Carlini  <paolo.carlini@oracle.com>
+
 	* libsupc++/Makefile.am: Add initializer_list to the headers.
 	* libsupc++/Makefile.in: Regenerate.
 

libstdc++-v3/testsuite/21_strings/basic_string/numeric_conversions/char/stod.cc

@@ -107,7 +107,8 @@ test01()
     }
   VERIFY( test );
 
-  if (sizeof(double) < sizeof(long double))
+  if ((numeric_limits<long double>::max() / 10000.0L)
+      > numeric_limits<double>::max())
     {
       test = false;
       d1 = -1.0;

libstdc++-v3/testsuite/21_strings/basic_string/numeric_conversions/char/stof.cc

@@ -107,7 +107,8 @@ test01()
     }
   VERIFY( test );
 
-  if (sizeof(float) < sizeof(long double))
+  if ((numeric_limits<long double>::max() / 10000.0L)
+      > numeric_limits<float>::max())
     {
       test = false;
       f1 = -1.0f;

libstdc++-v3/testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stod.cc

@@ -107,7 +107,8 @@ test01()
     }
   VERIFY( test );
 
-  if (sizeof(double) < sizeof(long double))
+  if ((numeric_limits<long double>::max() / 10000.0L)
+      > numeric_limits<double>::max())
     {
       test = false;
       d1 = -1.0;

libstdc++-v3/testsuite/21_strings/basic_string/numeric_conversions/wchar_t/stof.cc

@@ -107,7 +107,8 @@ test01()
     }
   VERIFY( test );
 
-  if (sizeof(float) < sizeof(long double))
+  if ((numeric_limits<long double>::max() / 10000.0L)
+      > numeric_limits<float>::max())
     {
       test = false;
       f1 = -1.0f;