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-rw-r--r--absl/base/internal/spinlock.h6
-rw-r--r--absl/strings/substitute.h13
-rw-r--r--absl/strings/substitute_test.cc12
3 files changed, 29 insertions, 2 deletions
diff --git a/absl/base/internal/spinlock.h b/absl/base/internal/spinlock.h
index 4a316399..940f56af 100644
--- a/absl/base/internal/spinlock.h
+++ b/absl/base/internal/spinlock.h
@@ -57,8 +57,10 @@ class LOCKABLE SpinLock {
//
// static SpinLock lock(base_internal::kLinkerInitialized);
//
- // When intialized using this constructor, we depend on the fact
- // that the linker has already initialized the memory appropriately.
+ // When initialized using this constructor, we depend on the fact
+ // that the linker has already initialized the memory appropriately. The lock
+ // is initialized in non-cooperative mode.
+ //
// A SpinLock constructed like this can be freely used from global
// initializers without worrying about the order in which global
// initializers run.
diff --git a/absl/strings/substitute.h b/absl/strings/substitute.h
index 507bc4ff..32dec30b 100644
--- a/absl/strings/substitute.h
+++ b/absl/strings/substitute.h
@@ -69,6 +69,8 @@
#include <cstring>
#include <string>
+#include <type_traits>
+#include <vector>
#include "absl/base/macros.h"
#include "absl/base/port.h"
@@ -151,6 +153,17 @@ class Arg {
Arg(Hex hex); // NOLINT(runtime/explicit)
Arg(Dec dec); // NOLINT(runtime/explicit)
+ // vector<bool>::reference and const_reference require special help to
+ // convert to `AlphaNum` because it requires two user defined conversions.
+ template <typename T,
+ absl::enable_if_t<
+ std::is_class<T>::value &&
+ (std::is_same<T, std::vector<bool>::reference>::value ||
+ std::is_same<T, std::vector<bool>::const_reference>::value)>* =
+ nullptr>
+ Arg(T value) // NOLINT(google-explicit-constructor)
+ : Arg(static_cast<bool>(value)) {}
+
// `void*` values, with the exception of `char*`, are printed as
// "0x<hex value>". However, in the case of `nullptr`, "NULL" is printed.
Arg(const void* value); // NOLINT(runtime/explicit)
diff --git a/absl/strings/substitute_test.cc b/absl/strings/substitute_test.cc
index f6568906..e27abb17 100644
--- a/absl/strings/substitute_test.cc
+++ b/absl/strings/substitute_test.cc
@@ -15,6 +15,7 @@
#include "absl/strings/substitute.h"
#include <cstdint>
+#include <vector>
#include "gtest/gtest.h"
#include "absl/strings/str_cat.h"
@@ -172,6 +173,17 @@ TEST(SubstituteTest, SubstituteAndAppend) {
EXPECT_EQ("a b c d e f g h i j", str);
}
+TEST(SubstituteTest, VectorBoolRef) {
+ std::vector<bool> v = {true, false};
+ const auto& cv = v;
+ EXPECT_EQ("true false true false",
+ absl::Substitute("$0 $1 $2 $3", v[0], v[1], cv[0], cv[1]));
+
+ std::string str = "Logic be like: ";
+ absl::SubstituteAndAppend(&str, "$0 $1 $2 $3", v[0], v[1], cv[0], cv[1]);
+ EXPECT_EQ("Logic be like: true false true false", str);
+}
+
#ifdef GTEST_HAS_DEATH_TEST
TEST(SubstituteDeathTest, SubstituteDeath) {