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-rw-r--r--absl/flags/flag.h33
1 files changed, 6 insertions, 27 deletions
diff --git a/absl/flags/flag.h b/absl/flags/flag.h
index bd61668f..fcfdd58c 100644
--- a/absl/flags/flag.h
+++ b/absl/flags/flag.h
@@ -186,15 +186,17 @@ class Flag {
//
// // FLAGS_firstname is a Flag of type `std::string`
// std::string first_name = absl::GetFlag(FLAGS_firstname);
+template <typename T>
+ABSL_MUST_USE_RESULT T GetFlag(const absl::Flag<T>& flag) {
+ return flag.Get();
+}
+
#ifndef NDEBUG
// We want to validate the type mismatch between type definition and
// declaration. The lock-free implementation does not allow us to do it,
// so in debug builds we always use the slower implementation, which always
// validates the type.
-template <typename T>
-ABSL_MUST_USE_RESULT T GetFlag(const absl::Flag<T>& flag) {
- return flag.Get();
-}
+
// We currently need an external linkage for built-in types because shared
// libraries have different addresses of flags_internal::FlagOps<T> which
// might cause log spam when checking the same flag type.
@@ -202,29 +204,6 @@ ABSL_MUST_USE_RESULT T GetFlag(const absl::Flag<T>& flag) {
ABSL_MUST_USE_RESULT T GetFlag(const absl::Flag<T>& flag);
ABSL_FLAGS_INTERNAL_BUILTIN_TYPES(ABSL_FLAGS_INTERNAL_BUILT_IN_EXPORT)
#undef ABSL_FLAGS_INTERNAL_BUILT_IN_EXPORT
-#else
-template <typename T,
- typename std::enable_if<
- !flags_internal::IsAtomicFlagTypeTrait<T>::value, int>::type = 0>
-ABSL_MUST_USE_RESULT T GetFlag(const absl::Flag<T>& flag) {
- return flag.Get();
-}
-// Overload for `GetFlag()` for types that support lock-free reads.
-template <typename T,
- typename std::enable_if<
- flags_internal::IsAtomicFlagTypeTrait<T>::value, int>::type = 0>
-ABSL_MUST_USE_RESULT T GetFlag(const absl::Flag<T>& flag) {
- // T might not be default constructible.
- union U {
- T value;
- U() {}
- };
- U result;
- if (flag.AtomicGet(&result.value)) {
- return result.value;
- }
- return flag.Get();
-}
#endif
// SetFlag()