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authorGravatar Abseil Team <absl-team@google.com>2018-04-23 08:17:58 -0700
committerGravatar Derek Mauro <dmauro@google.com>2018-04-23 12:57:34 -0400
commitaf7882601aad93ada881486eeaabc562f1733961 (patch)
treee9a52b01ef69c7654a97d66c8d60377c851ae817 /absl/types/optional.h
parent94ce52d46c171683b1ee22d14277a6d3bdfd7c4c (diff)
- fd5f3d7077270ffc5ea74cdb9e18bbae3b9b46aa Fix typo optional -> variant by Abseil Team <absl-team@google.com>
- 9136c06dfa8dbfdde0a427ad3509e34763d607a6 Fix string_view_test and str_cat_test build under MSVC de... by Derek Mauro <dmauro@google.com> - a463820f9441888f4368aa87328599e3209f9b07 Removes constexpr optional<T>::operator->(). This was don... by Abseil Team <absl-team@google.com> - 3bf78a7f126daafff329f7815d507422f1ca378d Remove dependencies on external CCTZ project. by Shaindel Schwartz <shaindel@google.com> - a4ae574a11b1ddf6e88459af3d638cf79aea7ecd Internal change by Jon Cohen <cohenjon@google.com> GitOrigin-RevId: fd5f3d7077270ffc5ea74cdb9e18bbae3b9b46aa Change-Id: I6ab8ab99863716fe9b2745a12ef285f7a6da6d1e
Diffstat (limited to 'absl/types/optional.h')
-rw-r--r--absl/types/optional.h12
1 files changed, 7 insertions, 5 deletions
diff --git a/absl/types/optional.h b/absl/types/optional.h
index 581321dc..98b29e59 100644
--- a/absl/types/optional.h
+++ b/absl/types/optional.h
@@ -774,7 +774,9 @@ class optional : private optional_internal::optional_data<T>,
//
// Accesses the underlying `T` value's member `m` of an `optional`. If the
// `optional` is empty, behavior is undefined.
- constexpr const T* operator->() const { return this->pointer(); }
+ //
+ // If you need myOpt->foo in constexpr, use (*myOpt).foo instead.
+ const T* operator->() const { return this->pointer(); }
T* operator->() {
assert(this->engaged_);
return this->pointer();
@@ -870,12 +872,12 @@ class optional : private optional_internal::optional_data<T>,
private:
// Private accessors for internal storage viewed as pointer to T.
- constexpr const T* pointer() const { return &this->data_; }
- T* pointer() { return &this->data_; }
+ const T* pointer() const { return std::addressof(this->data_); }
+ T* pointer() { return std::addressof(this->data_); }
// Private accessors for internal storage viewed as reference to T.
- constexpr const T& reference() const { return *this->pointer(); }
- T& reference() { return *(this->pointer()); }
+ constexpr const T& reference() const { return this->data_; }
+ T& reference() { return this->data_; }
// T constraint checks. You can't have an optional of nullopt_t, in_place_t
// or a reference.