Avoids iterator_traits, as it's not available in libCStd when compiled with Sun C++.

git-svn-id: http://googletest.googlecode.com/svn/trunk@568 861a406c-534a-0410-8894-cb66d6ee9925

6 files changed, 52 insertions, 15 deletions

diff --git a/include/gtest/gtest-param-test.h b/include/gtest/gtest-param-test.h
index 62c7c00..6407cfd 100644
--- a/include/gtest/gtest-param-test.h
+++ b/include/gtest/gtest-param-test.h
@@ -306,11 +306,10 @@ internal::ParamGenerator<T> Range(T start, T end) {
 //
 template <typename ForwardIterator>
 internal::ParamGenerator<
-    typename ::std::iterator_traits<ForwardIterator>::value_type> ValuesIn(
-  ForwardIterator begin,
-  ForwardIterator end) {
-  typedef typename ::std::iterator_traits<ForwardIterator>::value_type
-      ParamType;
+  typename ::testing::internal::IteratorTraits<ForwardIterator>::value_type>
+ValuesIn(ForwardIterator begin, ForwardIterator end) {
+  typedef typename ::testing::internal::IteratorTraits<ForwardIterator>
+      ::value_type ParamType;
   return internal::ParamGenerator<ParamType>(
       new internal::ValuesInIteratorRangeGenerator<ParamType>(begin, end));
 }
diff --git a/include/gtest/gtest-param-test.h.pump b/include/gtest/gtest-param-test.h.pump
index 877126b..401cb51 100644
--- a/include/gtest/gtest-param-test.h.pump
+++ b/include/gtest/gtest-param-test.h.pump
@@ -305,11 +305,10 @@ internal::ParamGenerator<T> Range(T start, T end) {
 //
 template <typename ForwardIterator>
 internal::ParamGenerator<
-    typename ::std::iterator_traits<ForwardIterator>::value_type> ValuesIn(
-  ForwardIterator begin,
-  ForwardIterator end) {
-  typedef typename ::std::iterator_traits<ForwardIterator>::value_type
-      ParamType;
+  typename ::testing::internal::IteratorTraits<ForwardIterator>::value_type>
+ValuesIn(ForwardIterator begin, ForwardIterator end) {
+  typedef typename ::testing::internal::IteratorTraits<ForwardIterator>
+      ::value_type ParamType;
   return internal::ParamGenerator<ParamType>(
       new internal::ValuesInIteratorRangeGenerator<ParamType>(begin, end));
 }
diff --git a/include/gtest/internal/gtest-param-util-generated.h b/include/gtest/internal/gtest-param-util-generated.h
index c6f0ce0..2582675 100644
--- a/include/gtest/internal/gtest-param-util-generated.h
+++ b/include/gtest/internal/gtest-param-util-generated.h
@@ -1,4 +1,6 @@
-// This file was GENERATED by a script.  DO NOT EDIT BY HAND!!!
+// This file was GENERATED by command:
+//     pump.py gtest-param-util-generated.h.pump
+// DO NOT EDIT BY HAND!!!
 
 // Copyright 2008 Google Inc.
 // All Rights Reserved.
@@ -58,8 +60,8 @@ namespace testing {
 // include/gtest/gtest-param-test.h.
 template <typename ForwardIterator>
 internal::ParamGenerator<
-    typename ::std::iterator_traits<ForwardIterator>::value_type> ValuesIn(
-        ForwardIterator begin, ForwardIterator end);
+  typename ::testing::internal::IteratorTraits<ForwardIterator>::value_type>
+ValuesIn(ForwardIterator begin, ForwardIterator end);
 
 template <typename T, size_t N>
 internal::ParamGenerator<T> ValuesIn(const T (&array)[N]);
diff --git a/include/gtest/internal/gtest-param-util-generated.h.pump b/include/gtest/internal/gtest-param-util-generated.h.pump
index c148bb1..dbe9386 100644
--- a/include/gtest/internal/gtest-param-util-generated.h.pump
+++ b/include/gtest/internal/gtest-param-util-generated.h.pump
@@ -59,8 +59,8 @@ namespace testing {
 // include/gtest/gtest-param-test.h.
 template <typename ForwardIterator>
 internal::ParamGenerator<
-    typename ::std::iterator_traits<ForwardIterator>::value_type> ValuesIn(
-        ForwardIterator begin, ForwardIterator end);
+  typename ::testing::internal::IteratorTraits<ForwardIterator>::value_type>
+ValuesIn(ForwardIterator begin, ForwardIterator end);
 
 template <typename T, size_t N>
 internal::ParamGenerator<T> ValuesIn(const T (&array)[N]);
diff --git a/include/gtest/internal/gtest-port.h b/include/gtest/internal/gtest-port.h
index 53cf824..d2bc6cb 100644
--- a/include/gtest/internal/gtest-port.h
+++ b/include/gtest/internal/gtest-port.h
@@ -140,6 +140,8 @@
 //
 // Template meta programming:
 //   is_pointer     - as in TR1; needed on Symbian and IBM XL C/C++ only.
+//   IteratorTraits - partial implementation of std::iterator_traits, which
+//                    is not available in libCstd when compiled with Sun C++.
 //
 // Smart pointers:
 //   scoped_ptr     - as in TR2.
@@ -1466,6 +1468,21 @@ struct is_pointer : public false_type {};
 template <typename T>
 struct is_pointer<T*> : public true_type {};
 
+template <typename Iterator>
+struct IteratorTraits {
+  typedef typename Iterator::value_type value_type;
+};
+
+template <typename T>
+struct IteratorTraits<T*> {
+  typedef T value_type;
+};
+
+template <typename T>
+struct IteratorTraits<const T*> {
+  typedef T value_type;
+};
+
 #if GTEST_OS_WINDOWS
 # define GTEST_PATH_SEP_ "\\"
 # define GTEST_HAS_ALT_PATH_SEP_ 1
diff --git a/test/gtest-port_test.cc b/test/gtest-port_test.cc
index ff0165f..1c6e2b0 100644
--- a/test/gtest-port_test.cc
+++ b/test/gtest-port_test.cc
@@ -39,7 +39,9 @@
 # include <time.h>
 #endif  // GTEST_OS_MAC
 
+#include <list>
 #include <utility>  // For std::pair and std::make_pair.
+#include <vector>
 
 #include "gtest/gtest.h"
 #include "gtest/gtest-spi.h"
@@ -172,6 +174,24 @@ TEST(ImplicitCastTest, CanUseImplicitConstructor) {
   EXPECT_TRUE(converted);
 }
 
+TEST(IteratorTraitsTest, WorksForSTLContainerIterators) {
+  StaticAssertTypeEq<int,
+      IteratorTraits< ::std::vector<int>::const_iterator>::value_type>();
+  StaticAssertTypeEq<bool,
+      IteratorTraits< ::std::list<bool>::iterator>::value_type>();
+}
+
+TEST(IteratorTraitsTest, WorksForPointerToNonConst) {
+  StaticAssertTypeEq<char, IteratorTraits<char*>::value_type>();
+  StaticAssertTypeEq<const void*, IteratorTraits<const void**>::value_type>();
+}
+
+TEST(IteratorTraitsTest, WorksForPointerToConst) {
+  StaticAssertTypeEq<char, IteratorTraits<const char*>::value_type>();
+  StaticAssertTypeEq<const void*,
+      IteratorTraits<const void* const*>::value_type>();
+}
+
 // Tests that the element_type typedef is available in scoped_ptr and refers
 // to the parameter type.
 TEST(ScopedPtrTest, DefinesElementType) {