Revert "Reland "libutils: Introduce StaticString16"""
This reverts commit c55ac92bd6b6f14778758893730415f5328da530.
Reason for revert: Breaks down-stream branches. See b/140315617
Change-Id: I4937fdf4bdcc7a44d5f10700ecf2d5e96aef7d27
Merged-In: I8da93f2c9b95183e32d4a2ea895f90c449abbe4d
diff --git a/libutils/Android.bp b/libutils/Android.bp
index 30798dd..8be4dd0 100644
--- a/libutils/Android.bp
+++ b/libutils/Android.bp
@@ -205,7 +205,6 @@
"Mutex_test.cpp",
"SharedBuffer_test.cpp",
"String8_test.cpp",
- "String16_test.cpp",
"StrongPointer_test.cpp",
"Unicode_test.cpp",
"Vector_test.cpp",
diff --git a/libutils/SharedBuffer.cpp b/libutils/SharedBuffer.cpp
index 3e703db..7910c6e 100644
--- a/libutils/SharedBuffer.cpp
+++ b/libutils/SharedBuffer.cpp
@@ -41,7 +41,6 @@
// The following is OK on Android-supported platforms.
sb->mRefs.store(1, std::memory_order_relaxed);
sb->mSize = size;
- sb->mClientMetadata = 0;
}
return sb;
}
diff --git a/libutils/SharedBuffer.h b/libutils/SharedBuffer.h
index 476c842..fdf13a9 100644
--- a/libutils/SharedBuffer.h
+++ b/libutils/SharedBuffer.h
@@ -102,12 +102,7 @@
// Must be sized to preserve correct alignment.
mutable std::atomic<int32_t> mRefs;
size_t mSize;
- uint32_t mReserved;
-public:
- // mClientMetadata is reserved for client use. It is initialized to 0
- // and the clients can do whatever they want with it. Note that this is
- // placed last so that it is adjcent to the buffer allocated.
- uint32_t mClientMetadata;
+ uint32_t mReserved[2];
};
static_assert(sizeof(SharedBuffer) % 8 == 0
diff --git a/libutils/String16.cpp b/libutils/String16.cpp
index 5c3cf32..818b171 100644
--- a/libutils/String16.cpp
+++ b/libutils/String16.cpp
@@ -24,21 +24,21 @@
namespace android {
-static const StaticString16 emptyString(u"");
static inline char16_t* getEmptyString() {
- return const_cast<char16_t*>(emptyString.string());
+ static SharedBuffer* gEmptyStringBuf = [] {
+ SharedBuffer* buf = SharedBuffer::alloc(sizeof(char16_t));
+ char16_t* str = static_cast<char16_t*>(buf->data());
+ *str = 0;
+ return buf;
+ }();
+
+ gEmptyStringBuf->acquire();
+ return static_cast<char16_t*>(gEmptyStringBuf->data());
}
// ---------------------------------------------------------------------------
-void* String16::alloc(size_t size)
-{
- SharedBuffer* buf = SharedBuffer::alloc(size);
- buf->mClientMetadata = kIsSharedBufferAllocated;
- return buf;
-}
-
-char16_t* String16::allocFromUTF8(const char* u8str, size_t u8len)
+static char16_t* allocFromUTF8(const char* u8str, size_t u8len)
{
if (u8len == 0) return getEmptyString();
@@ -49,7 +49,7 @@
return getEmptyString();
}
- SharedBuffer* buf = static_cast<SharedBuffer*>(alloc(sizeof(char16_t) * (u16len + 1)));
+ SharedBuffer* buf = SharedBuffer::alloc(sizeof(char16_t)*(u16len+1));
if (buf) {
u8cur = (const uint8_t*) u8str;
char16_t* u16str = (char16_t*)buf->data();
@@ -66,13 +66,13 @@
return getEmptyString();
}
-char16_t* String16::allocFromUTF16(const char16_t* u16str, size_t u16len) {
+static char16_t* allocFromUTF16(const char16_t* u16str, size_t u16len) {
if (u16len >= SIZE_MAX / sizeof(char16_t)) {
android_errorWriteLog(0x534e4554, "73826242");
abort();
}
- SharedBuffer* buf = static_cast<SharedBuffer*>(alloc((u16len + 1) * sizeof(char16_t)));
+ SharedBuffer* buf = SharedBuffer::alloc((u16len + 1) * sizeof(char16_t));
ALOG_ASSERT(buf, "Unable to allocate shared buffer");
if (buf) {
char16_t* str = (char16_t*)buf->data();
@@ -97,8 +97,8 @@
// having run. In this case we always allocate an empty string. It's less
// efficient than using getEmptyString(), but we assume it's uncommon.
- SharedBuffer* buf = static_cast<SharedBuffer*>(alloc(sizeof(char16_t)));
- char16_t* data = static_cast<char16_t*>(buf->data());
+ char16_t* data = static_cast<char16_t*>(
+ SharedBuffer::alloc(sizeof(char16_t))->data());
data[0] = 0;
mString = data;
}
@@ -106,7 +106,7 @@
String16::String16(const String16& o)
: mString(o.mString)
{
- acquire();
+ SharedBuffer::bufferFromData(mString)->acquire();
}
String16::String16(const String16& o, size_t len, size_t begin)
@@ -136,30 +136,26 @@
String16::~String16()
{
- release();
+ SharedBuffer::bufferFromData(mString)->release();
}
size_t String16::size() const
{
- if (isStaticString()) {
- return staticStringSize();
- } else {
- return SharedBuffer::sizeFromData(mString) / sizeof(char16_t) - 1;
- }
+ return SharedBuffer::sizeFromData(mString)/sizeof(char16_t)-1;
}
void String16::setTo(const String16& other)
{
- release();
+ SharedBuffer::bufferFromData(other.mString)->acquire();
+ SharedBuffer::bufferFromData(mString)->release();
mString = other.mString;
- acquire();
}
status_t String16::setTo(const String16& other, size_t len, size_t begin)
{
const size_t N = other.size();
if (begin >= N) {
- release();
+ SharedBuffer::bufferFromData(mString)->release();
mString = getEmptyString();
return OK;
}
@@ -188,7 +184,8 @@
abort();
}
- SharedBuffer* buf = static_cast<SharedBuffer*>(editResize((len + 1) * sizeof(char16_t)));
+ SharedBuffer* buf = SharedBuffer::bufferFromData(mString)
+ ->editResize((len+1)*sizeof(char16_t));
if (buf) {
char16_t* str = (char16_t*)buf->data();
memmove(str, other, len*sizeof(char16_t));
@@ -215,8 +212,8 @@
abort();
}
- SharedBuffer* buf =
- static_cast<SharedBuffer*>(editResize((myLen + otherLen + 1) * sizeof(char16_t)));
+ SharedBuffer* buf = SharedBuffer::bufferFromData(mString)
+ ->editResize((myLen+otherLen+1)*sizeof(char16_t));
if (buf) {
char16_t* str = (char16_t*)buf->data();
memcpy(str+myLen, other, (otherLen+1)*sizeof(char16_t));
@@ -241,8 +238,8 @@
abort();
}
- SharedBuffer* buf =
- static_cast<SharedBuffer*>(editResize((myLen + otherLen + 1) * sizeof(char16_t)));
+ SharedBuffer* buf = SharedBuffer::bufferFromData(mString)
+ ->editResize((myLen+otherLen+1)*sizeof(char16_t));
if (buf) {
char16_t* str = (char16_t*)buf->data();
memcpy(str+myLen, chrs, otherLen*sizeof(char16_t));
@@ -276,8 +273,8 @@
len, myLen, String8(chrs, len).string());
#endif
- SharedBuffer* buf =
- static_cast<SharedBuffer*>(editResize((myLen + len + 1) * sizeof(char16_t)));
+ SharedBuffer* buf = SharedBuffer::bufferFromData(mString)
+ ->editResize((myLen+len+1)*sizeof(char16_t));
if (buf) {
char16_t* str = (char16_t*)buf->data();
if (pos < myLen) {
@@ -341,87 +338,23 @@
return strstr16(mString, chrs) != nullptr;
}
-void* String16::edit() {
- SharedBuffer* buf;
- if (isStaticString()) {
- buf = static_cast<SharedBuffer*>(alloc((size() + 1) * sizeof(char16_t)));
- if (buf) {
- buf->acquire();
- memcpy(buf->data(), mString, (size() + 1) * sizeof(char16_t));
- }
- } else {
- buf = SharedBuffer::bufferFromData(mString)->edit();
- buf->mClientMetadata = kIsSharedBufferAllocated;
- }
- return buf;
-}
-
-void* String16::editResize(size_t newSize) {
- SharedBuffer* buf;
- if (isStaticString()) {
- size_t copySize = (size() + 1) * sizeof(char16_t);
- if (newSize < copySize) {
- copySize = newSize;
- }
- buf = static_cast<SharedBuffer*>(alloc(newSize));
- if (buf) {
- buf->acquire();
- memcpy(buf->data(), mString, copySize);
- }
- } else {
- buf = SharedBuffer::bufferFromData(mString)->editResize(newSize);
- buf->mClientMetadata = kIsSharedBufferAllocated;
- }
- return buf;
-}
-
-void String16::acquire()
-{
- if (!isStaticString()) {
- SharedBuffer::bufferFromData(mString)->acquire();
- }
-}
-
-void String16::release()
-{
- if (!isStaticString()) {
- SharedBuffer::bufferFromData(mString)->release();
- }
-}
-
-bool String16::isStaticString() const {
- // See String16.h for notes on the memory layout of String16::StaticData and
- // SharedBuffer.
- static_assert(sizeof(SharedBuffer) - offsetof(SharedBuffer, mClientMetadata) == 4);
- const uint32_t* p = reinterpret_cast<const uint32_t*>(mString);
- return (*(p - 1) & kIsSharedBufferAllocated) == 0;
-}
-
-size_t String16::staticStringSize() const {
- // See String16.h for notes on the memory layout of String16::StaticData and
- // SharedBuffer.
- static_assert(sizeof(SharedBuffer) - offsetof(SharedBuffer, mClientMetadata) == 4);
- const uint32_t* p = reinterpret_cast<const uint32_t*>(mString);
- return static_cast<size_t>(*(p - 1));
-}
-
status_t String16::makeLower()
{
const size_t N = size();
const char16_t* str = string();
- char16_t* edited = nullptr;
+ char16_t* edit = nullptr;
for (size_t i=0; i<N; i++) {
const char16_t v = str[i];
if (v >= 'A' && v <= 'Z') {
- if (!edited) {
- SharedBuffer* buf = static_cast<SharedBuffer*>(edit());
+ if (!edit) {
+ SharedBuffer* buf = SharedBuffer::bufferFromData(mString)->edit();
if (!buf) {
return NO_MEMORY;
}
- edited = (char16_t*)buf->data();
- mString = str = edited;
+ edit = (char16_t*)buf->data();
+ mString = str = edit;
}
- edited[i] = tolower((char)v);
+ edit[i] = tolower((char)v);
}
}
return OK;
@@ -431,18 +364,18 @@
{
const size_t N = size();
const char16_t* str = string();
- char16_t* edited = nullptr;
+ char16_t* edit = nullptr;
for (size_t i=0; i<N; i++) {
if (str[i] == replaceThis) {
- if (!edited) {
- SharedBuffer* buf = static_cast<SharedBuffer*>(edit());
+ if (!edit) {
+ SharedBuffer* buf = SharedBuffer::bufferFromData(mString)->edit();
if (!buf) {
return NO_MEMORY;
}
- edited = (char16_t*)buf->data();
- mString = str = edited;
+ edit = (char16_t*)buf->data();
+ mString = str = edit;
}
- edited[i] = withThis;
+ edit[i] = withThis;
}
}
return OK;
@@ -452,7 +385,7 @@
{
const size_t N = size();
if (begin >= N) {
- release();
+ SharedBuffer::bufferFromData(mString)->release();
mString = getEmptyString();
return OK;
}
@@ -462,7 +395,8 @@
}
if (begin > 0) {
- SharedBuffer* buf = static_cast<SharedBuffer*>(editResize((N + 1) * sizeof(char16_t)));
+ SharedBuffer* buf = SharedBuffer::bufferFromData(mString)
+ ->editResize((N+1)*sizeof(char16_t));
if (!buf) {
return NO_MEMORY;
}
@@ -470,7 +404,8 @@
memmove(str, str+begin, (N-begin+1)*sizeof(char16_t));
mString = str;
}
- SharedBuffer* buf = static_cast<SharedBuffer*>(editResize((len + 1) * sizeof(char16_t)));
+ SharedBuffer* buf = SharedBuffer::bufferFromData(mString)
+ ->editResize((len+1)*sizeof(char16_t));
if (buf) {
char16_t* str = (char16_t*)buf->data();
str[len] = 0;
diff --git a/libutils/String16_test.cpp b/libutils/String16_test.cpp
deleted file mode 100644
index f1f24c3..0000000
--- a/libutils/String16_test.cpp
+++ /dev/null
@@ -1,218 +0,0 @@
-/*
- * Copyright (C) 2019 The Android Open Source Project
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <utils/String16.h>
-#include <utils/String8.h>
-
-#include <gtest/gtest.h>
-
-namespace android {
-
-::testing::AssertionResult Char16_tStringEquals(const char16_t* a, const char16_t* b) {
- if (strcmp16(a, b) != 0) {
- return ::testing::AssertionFailure()
- << "\"" << String8(a).c_str() << "\" not equal to \"" << String8(b).c_str() << "\"";
- }
- return ::testing::AssertionSuccess();
-}
-
-#define EXPECT_STR16EQ(a, b) EXPECT_TRUE(Char16_tStringEquals(a, b))
-
-TEST(String16Test, FromChar16_t) {
- String16 tmp(u"Verify me");
- EXPECT_STR16EQ(u"Verify me", tmp);
-}
-
-TEST(String16Test, FromChar16_tSized) {
- String16 tmp(u"Verify me", 7);
- EXPECT_STR16EQ(u"Verify ", tmp);
-}
-
-TEST(String16Test, FromChar) {
- String16 tmp("Verify me");
- EXPECT_STR16EQ(u"Verify me", tmp);
-}
-
-TEST(String16Test, FromCharSized) {
- String16 tmp("Verify me", 7);
- EXPECT_STR16EQ(u"Verify ", tmp);
-}
-
-TEST(String16Test, Copy) {
- String16 tmp("Verify me");
- String16 another = tmp;
- EXPECT_STR16EQ(u"Verify me", tmp);
- EXPECT_STR16EQ(u"Verify me", another);
-}
-
-TEST(String16Test, Move) {
- String16 tmp("Verify me");
- String16 another(std::move(tmp));
- EXPECT_STR16EQ(u"Verify me", another);
-}
-
-TEST(String16Test, Size) {
- String16 tmp("Verify me");
- EXPECT_EQ(9U, tmp.size());
-}
-
-TEST(String16Test, setTo) {
- String16 tmp("Verify me");
- tmp.setTo(u"New content");
- EXPECT_EQ(11U, tmp.size());
- EXPECT_STR16EQ(u"New content", tmp);
-}
-
-TEST(String16Test, Append) {
- String16 tmp("Verify me");
- tmp.append(String16("Hello"));
- EXPECT_EQ(14U, tmp.size());
- EXPECT_STR16EQ(u"Verify meHello", tmp);
-}
-
-TEST(String16Test, Insert) {
- String16 tmp("Verify me");
- tmp.insert(6, u"Insert");
- EXPECT_EQ(15U, tmp.size());
- EXPECT_STR16EQ(u"VerifyInsert me", tmp);
-}
-
-TEST(String16Test, Remove) {
- String16 tmp("Verify me");
- tmp.remove(2, 6);
- EXPECT_EQ(2U, tmp.size());
- EXPECT_STR16EQ(u" m", tmp);
-}
-
-TEST(String16Test, MakeLower) {
- String16 tmp("Verify Me!");
- tmp.makeLower();
- EXPECT_EQ(10U, tmp.size());
- EXPECT_STR16EQ(u"verify me!", tmp);
-}
-
-TEST(String16Test, ReplaceAll) {
- String16 tmp("Verify verify Verify");
- tmp.replaceAll(u'r', u'!');
- EXPECT_STR16EQ(u"Ve!ify ve!ify Ve!ify", tmp);
-}
-
-TEST(String16Test, Compare) {
- String16 tmp("Verify me");
- EXPECT_EQ(String16(u"Verify me"), tmp);
-}
-
-TEST(String16Test, StaticString) {
- String16 nonStaticString("NonStatic");
- StaticString16 staticString(u"Static");
-
- EXPECT_TRUE(staticString.isStaticString());
- EXPECT_FALSE(nonStaticString.isStaticString());
-}
-
-TEST(String16Test, StaticStringCopy) {
- StaticString16 tmp(u"Verify me");
- String16 another = tmp;
- EXPECT_STR16EQ(u"Verify me", tmp);
- EXPECT_STR16EQ(u"Verify me", another);
- EXPECT_TRUE(tmp.isStaticString());
- EXPECT_TRUE(another.isStaticString());
-}
-
-TEST(String16Test, StaticStringMove) {
- StaticString16 tmp(u"Verify me");
- String16 another(std::move(tmp));
- EXPECT_STR16EQ(u"Verify me", another);
- EXPECT_TRUE(another.isStaticString());
-}
-
-TEST(String16Test, StaticStringSize) {
- StaticString16 tmp(u"Verify me");
- EXPECT_EQ(9U, tmp.size());
-}
-
-TEST(String16Test, StaticStringSetTo) {
- StaticString16 tmp(u"Verify me");
- tmp.setTo(u"New content");
- EXPECT_EQ(11U, tmp.size());
- EXPECT_STR16EQ(u"New content", tmp);
- EXPECT_FALSE(tmp.isStaticString());
-}
-
-TEST(String16Test, StaticStringAppend) {
- StaticString16 tmp(u"Verify me");
- tmp.append(String16("Hello"));
- EXPECT_EQ(14U, tmp.size());
- EXPECT_STR16EQ(u"Verify meHello", tmp);
- EXPECT_FALSE(tmp.isStaticString());
-}
-
-TEST(String16Test, StaticStringInsert) {
- StaticString16 tmp(u"Verify me");
- tmp.insert(6, u"Insert");
- EXPECT_EQ(15U, tmp.size());
- EXPECT_STR16EQ(u"VerifyInsert me", tmp);
- EXPECT_FALSE(tmp.isStaticString());
-}
-
-TEST(String16Test, StaticStringRemove) {
- StaticString16 tmp(u"Verify me");
- tmp.remove(2, 6);
- EXPECT_EQ(2U, tmp.size());
- EXPECT_STR16EQ(u" m", tmp);
- EXPECT_FALSE(tmp.isStaticString());
-}
-
-TEST(String16Test, StaticStringMakeLower) {
- StaticString16 tmp(u"Verify me!");
- tmp.makeLower();
- EXPECT_EQ(10U, tmp.size());
- EXPECT_STR16EQ(u"verify me!", tmp);
- EXPECT_FALSE(tmp.isStaticString());
-}
-
-TEST(String16Test, StaticStringReplaceAll) {
- StaticString16 tmp(u"Verify verify Verify");
- tmp.replaceAll(u'r', u'!');
- EXPECT_STR16EQ(u"Ve!ify ve!ify Ve!ify", tmp);
- EXPECT_FALSE(tmp.isStaticString());
-}
-
-TEST(String16Test, StaticStringCompare) {
- StaticString16 tmp(u"Verify me");
- EXPECT_EQ(String16(u"Verify me"), tmp);
-}
-
-TEST(String16Test, StringSetToStaticString) {
- StaticString16 tmp(u"Verify me");
- String16 another(u"nonstatic");
- another = tmp;
- EXPECT_STR16EQ(u"Verify me", tmp);
- EXPECT_STR16EQ(u"Verify me", another);
-}
-
-TEST(String16Test, StringMoveFromStaticString) {
- StaticString16 tmp(u"Verify me");
- String16 another(std::move(tmp));
- EXPECT_STR16EQ(u"Verify me", another);
-}
-
-TEST(String16Test, EmptyStringIsStatic) {
- String16 tmp("");
- EXPECT_TRUE(tmp.isStaticString());
-}
-
-} // namespace android
diff --git a/libutils/include/utils/String16.h b/libutils/include/utils/String16.h
index adc3e7d..afbc2ed 100644
--- a/libutils/include/utils/String16.h
+++ b/libutils/include/utils/String16.h
@@ -37,17 +37,13 @@
class String8;
-template <size_t N>
-class StaticString16;
-
// DO NOT USE: please use std::u16string
//! This is a string holding UTF-16 characters.
class String16
{
public:
- /*
- * Use String16(StaticLinkage) if you're statically linking against
+ /* use String16(StaticLinkage) if you're statically linking against
* libutils and declaring an empty static String16, e.g.:
*
* static String16 sAStaticEmptyString(String16::kEmptyString);
@@ -127,76 +123,8 @@
inline operator const char16_t*() const;
- // Static and non-static String16 behave the same for the users, so
- // this method isn't of much use for the users. It is public for testing.
- bool isStaticString() const;
-
- private:
- /*
- * A flag indicating the type of underlying buffer.
- */
- static constexpr uint32_t kIsSharedBufferAllocated = 0x80000000;
-
- /*
- * alloc() returns void* so that SharedBuffer class is not exposed.
- */
- static void* alloc(size_t size);
- static char16_t* allocFromUTF8(const char* u8str, size_t u8len);
- static char16_t* allocFromUTF16(const char16_t* u16str, size_t u16len);
-
- /*
- * edit() and editResize() return void* so that SharedBuffer class
- * is not exposed.
- */
- void* edit();
- void* editResize(size_t new_size);
-
- void acquire();
- void release();
-
- size_t staticStringSize() const;
-
- const char16_t* mString;
-
-protected:
- /*
- * Data structure used to allocate static storage for static String16.
- *
- * Note that this data structure and SharedBuffer are used interchangably
- * as the underlying data structure for a String16. Therefore, the layout
- * of this data structure must match the part in SharedBuffer that is
- * visible to String16.
- */
- template <size_t N>
- struct StaticData {
- // The high bit of 'size' is used as a flag.
- static_assert(N - 1 < kIsSharedBufferAllocated, "StaticString16 too long!");
- constexpr StaticData() : size(N - 1), data{0} {}
- const uint32_t size;
- char16_t data[N];
-
- constexpr StaticData(const StaticData<N>&) = default;
- };
-
- /*
- * Helper function for constructing a StaticData object.
- */
- template <size_t N>
- static constexpr const StaticData<N> makeStaticData(const char16_t (&s)[N]) {
- StaticData<N> r;
- // The 'size' field is at the same location where mClientMetadata would
- // be for a SharedBuffer. We do NOT set kIsSharedBufferAllocated flag
- // here.
- for (size_t i = 0; i < N - 1; ++i) r.data[i] = s[i];
- return r;
- }
-
- template <size_t N>
- explicit constexpr String16(const StaticData<N>& s) : mString(s.data) {}
-
-public:
- template <size_t N>
- explicit constexpr String16(const StaticString16<N>& s) : mString(s.mString) {}
+private:
+ const char16_t* mString;
};
// String16 can be trivially moved using memcpy() because moving does not
@@ -204,42 +132,6 @@
ANDROID_TRIVIAL_MOVE_TRAIT(String16)
// ---------------------------------------------------------------------------
-
-/*
- * A StaticString16 object is a specialized String16 object. Instead of holding
- * the string data in a ref counted SharedBuffer object, it holds data in a
- * buffer within StaticString16 itself. Note that this buffer is NOT ref
- * counted and is assumed to be available for as long as there is at least a
- * String16 object using it. Therefore, one must be extra careful to NEVER
- * assign a StaticString16 to a String16 that outlives the StaticString16
- * object.
- *
- * THE SAFEST APPROACH IS TO USE StaticString16 ONLY AS GLOBAL VARIABLES.
- *
- * A StaticString16 SHOULD NEVER APPEAR IN APIs. USE String16 INSTEAD.
- */
-template <size_t N>
-class StaticString16 : public String16 {
-public:
- constexpr StaticString16(const char16_t (&s)[N]) : String16(mData), mData(makeStaticData(s)) {}
-
- constexpr StaticString16(const StaticString16<N>& other)
- : String16(mData), mData(other.mData) {}
-
- constexpr StaticString16(const StaticString16<N>&&) = delete;
-
- // There is no reason why one would want to 'new' a StaticString16. Delete
- // it to discourage misuse.
- static void* operator new(std::size_t) = delete;
-
-private:
- const StaticData<N> mData;
-};
-
-template <typename F>
-StaticString16(const F&)->StaticString16<sizeof(F) / sizeof(char16_t)>;
-
-// ---------------------------------------------------------------------------
// No user servicable parts below.
inline int compare_type(const String16& lhs, const String16& rhs)