* [PATCH] Use implicitly-defined copy operations for test iterators
@ 2019-10-25 17:03 Jonathan Wakely
0 siblings, 0 replies; only message in thread
From: Jonathan Wakely @ 2019-10-25 17:03 UTC (permalink / raw)
To: libstdc++, gcc-patches
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All of these special member functions do exactly what the compiler would
do anyway. By defining them as defaulted for C++11 and later we prevent
move constructors and move assignment operators being defined (which is
consistent with the previous semantics).
Also move default init of the input_iterator_wrapper members from the
derived constructor to the protected base constructor.
* testsuite/util/testsuite_iterators.h (output_iterator_wrapper)
(input_iterator_wrapper, forward_iterator_wrapper)
bidirectional_iterator_wrapper, random_access_iterator_wrapper): Remove
user-provided copy constructors and copy assignment operators so they
are defined implicitly.
(input_iterator_wrapper): Initialize members in default constructor.
(forward_iterator_wrapper): Remove assignments to members of base.
Tested powerpc64le-linux, committed to trunk.
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commit b44b241cab8af8af5d5ff6299c0409f4be2e7bbc
Author: Jonathan Wakely <jwakely@redhat.com>
Date: Thu Oct 24 22:00:27 2019 +0100
Use implicitly-defined copy operations for test iterators
All of these special member functions do exactly what the compiler would
do anyway. By defining them as defaulted for C++11 and later we prevent
move constructors and move assignment operators being defined (which is
consistent with the previous semantics).
Also move default init of the input_iterator_wrapper members from the
derived constructor to the protected base constructor.
* testsuite/util/testsuite_iterators.h (output_iterator_wrapper)
(input_iterator_wrapper, forward_iterator_wrapper)
bidirectional_iterator_wrapper, random_access_iterator_wrapper): Remove
user-provided copy constructors and copy assignment operators so they
are defined implicitly.
(input_iterator_wrapper): Initialize members in default constructor.
(forward_iterator_wrapper): Remove assignments to members of base.
diff --git a/libstdc++-v3/testsuite/util/testsuite_iterators.h b/libstdc++-v3/testsuite/util/testsuite_iterators.h
index 42e42740df9..d9a35622fb7 100644
--- a/libstdc++-v3/testsuite/util/testsuite_iterators.h
+++ b/libstdc++-v3/testsuite/util/testsuite_iterators.h
@@ -132,9 +132,14 @@ namespace __gnu_test
ITERATOR_VERIFY(ptr >= SharedInfo->first && ptr <= SharedInfo->last);
}
- output_iterator_wrapper(const output_iterator_wrapper& in)
- : ptr(in.ptr), SharedInfo(in.SharedInfo)
- { }
+#if __cplusplus >= 201103L
+ output_iterator_wrapper() = delete;
+
+ output_iterator_wrapper(const output_iterator_wrapper&) = default;
+
+ output_iterator_wrapper&
+ operator=(const output_iterator_wrapper&) = default;
+#endif
WritableObject<T>
operator*() const
@@ -144,14 +149,6 @@ namespace __gnu_test
return WritableObject<T>(ptr, SharedInfo);
}
- output_iterator_wrapper&
- operator=(const output_iterator_wrapper& in)
- {
- ptr = in.ptr;
- SharedInfo = in.SharedInfo;
- return *this;
- }
-
output_iterator_wrapper&
operator++()
{
@@ -203,7 +200,7 @@ namespace __gnu_test
std::ptrdiff_t, T*, T&>
{
protected:
- input_iterator_wrapper()
+ input_iterator_wrapper() : ptr(0), SharedInfo(0)
{ }
public:
@@ -215,9 +212,12 @@ namespace __gnu_test
: ptr(_ptr), SharedInfo(SharedInfo_in)
{ ITERATOR_VERIFY(ptr >= SharedInfo->first && ptr <= SharedInfo->last); }
- input_iterator_wrapper(const input_iterator_wrapper& in)
- : ptr(in.ptr), SharedInfo(in.SharedInfo)
- { }
+#if __cplusplus >= 201103L
+ input_iterator_wrapper(const input_iterator_wrapper&) = default;
+
+ input_iterator_wrapper&
+ operator=(const input_iterator_wrapper&) = default;
+#endif
bool
operator==(const input_iterator_wrapper& in) const
@@ -247,14 +247,6 @@ namespace __gnu_test
return &**this;
}
- input_iterator_wrapper&
- operator=(const input_iterator_wrapper& in)
- {
- ptr = in.ptr;
- SharedInfo = in.SharedInfo;
- return *this;
- }
-
input_iterator_wrapper&
operator++()
{
@@ -298,19 +290,20 @@ namespace __gnu_test
{
typedef BoundsContainer<T> ContainerType;
typedef std::forward_iterator_tag iterator_category;
+
forward_iterator_wrapper(T* _ptr, ContainerType* SharedInfo_in)
: input_iterator_wrapper<T>(_ptr, SharedInfo_in)
{ }
- forward_iterator_wrapper(const forward_iterator_wrapper& in)
- : input_iterator_wrapper<T>(in)
+ forward_iterator_wrapper()
{ }
- forward_iterator_wrapper()
- {
- this->ptr = 0;
- this->SharedInfo = 0;
- }
+#if __cplusplus >= 201103L
+ forward_iterator_wrapper(const forward_iterator_wrapper&) = default;
+
+ forward_iterator_wrapper&
+ operator=(const forward_iterator_wrapper&) = default;
+#endif
T&
operator*() const
@@ -352,24 +345,22 @@ namespace __gnu_test
{
typedef BoundsContainer<T> ContainerType;
typedef std::bidirectional_iterator_tag iterator_category;
+
bidirectional_iterator_wrapper(T* _ptr, ContainerType* SharedInfo_in)
: forward_iterator_wrapper<T>(_ptr, SharedInfo_in)
{ }
- bidirectional_iterator_wrapper(const bidirectional_iterator_wrapper& in)
- : forward_iterator_wrapper<T>(in)
+ bidirectional_iterator_wrapper()
+ : forward_iterator_wrapper<T>()
{ }
- bidirectional_iterator_wrapper(): forward_iterator_wrapper<T>()
- { }
+#if __cplusplus >= 201103L
+ bidirectional_iterator_wrapper(
+ const bidirectional_iterator_wrapper&) = default;
bidirectional_iterator_wrapper&
- operator=(const bidirectional_iterator_wrapper& in)
- {
- this->ptr = in.ptr;
- this->SharedInfo = in.SharedInfo;
- return *this;
- }
+ operator=(const bidirectional_iterator_wrapper&) = default;
+#endif
bidirectional_iterator_wrapper&
operator++()
@@ -417,24 +408,22 @@ namespace __gnu_test
{
typedef BoundsContainer<T> ContainerType;
typedef std::random_access_iterator_tag iterator_category;
+
random_access_iterator_wrapper(T* _ptr, ContainerType* SharedInfo_in)
: bidirectional_iterator_wrapper<T>(_ptr, SharedInfo_in)
{ }
- random_access_iterator_wrapper(const random_access_iterator_wrapper<T>& in)
- : bidirectional_iterator_wrapper<T>(in)
+ random_access_iterator_wrapper()
+ : bidirectional_iterator_wrapper<T>()
{ }
- random_access_iterator_wrapper():bidirectional_iterator_wrapper<T>()
- { }
+#if __cplusplus >= 201103L
+ random_access_iterator_wrapper(
+ const random_access_iterator_wrapper&) = default;
random_access_iterator_wrapper&
- operator=(const random_access_iterator_wrapper& in)
- {
- this->ptr = in.ptr;
- this->SharedInfo = in.SharedInfo;
- return *this;
- }
+ operator=(const random_access_iterator_wrapper&) = default;
+#endif
random_access_iterator_wrapper&
operator++()
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2019-10-25 17:03 [PATCH] Use implicitly-defined copy operations for test iterators Jonathan Wakely
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