7 #ifndef __CHAR16PTR_H__ 8 #define __CHAR16PTR_H__ 27 #ifdef U_ALIASING_BARRIER 29 #elif (defined(__clang__) || defined(__GNUC__)) && U_PLATFORM != U_PF_BROWSER_NATIVE_CLIENT 30 # define U_ALIASING_BARRIER(ptr) asm volatile("" : : "rm"(ptr) : "memory") 45 #if !U_CHAR16_IS_TYPEDEF 53 #if U_SIZEOF_WCHAR_T==2 || defined(U_IN_DOXYGEN) 79 inline char16_t *
get()
const;
85 inline operator char16_t *()
const {
return get(); }
90 #ifdef U_ALIASING_BARRIER 91 template<
typename T>
static char16_t *cast(T *t) {
92 U_ALIASING_BARRIER(t);
93 return reinterpret_cast<char16_t *
>(t);
106 #ifdef U_ALIASING_BARRIER 108 Char16Ptr::Char16Ptr(char16_t *p) : p_(p) {}
109 #if !U_CHAR16_IS_TYPEDEF 110 Char16Ptr::Char16Ptr(uint16_t *p) : p_(cast(p)) {}
112 #if U_SIZEOF_WCHAR_T==2 113 Char16Ptr::Char16Ptr(
wchar_t *p) : p_(cast(p)) {}
115 Char16Ptr::Char16Ptr(std::nullptr_t p) : p_(p) {}
117 U_ALIASING_BARRIER(p_);
124 Char16Ptr::Char16Ptr(char16_t *p) { u_.cp = p; }
125 #if !U_CHAR16_IS_TYPEDEF 126 Char16Ptr::Char16Ptr(uint16_t *p) { u_.up = p; }
128 #if U_SIZEOF_WCHAR_T==2 129 Char16Ptr::Char16Ptr(
wchar_t *p) { u_.wp = p; }
131 Char16Ptr::Char16Ptr(std::nullptr_t p) { u_.cp = p; }
150 #if !U_CHAR16_IS_TYPEDEF 158 #if U_SIZEOF_WCHAR_T==2 || defined(U_IN_DOXYGEN) 185 inline const char16_t *
get()
const;
191 inline operator const char16_t *()
const {
return get(); }
196 #ifdef U_ALIASING_BARRIER 197 template<
typename T>
static const char16_t *cast(
const T *t) {
198 U_ALIASING_BARRIER(t);
199 return reinterpret_cast<const char16_t *
>(t);
212 #ifdef U_ALIASING_BARRIER 214 ConstChar16Ptr::ConstChar16Ptr(
const char16_t *p) : p_(p) {}
215 #if !U_CHAR16_IS_TYPEDEF 216 ConstChar16Ptr::ConstChar16Ptr(
const uint16_t *p) : p_(cast(p)) {}
218 #if U_SIZEOF_WCHAR_T==2 219 ConstChar16Ptr::ConstChar16Ptr(
const wchar_t *p) : p_(cast(p)) {}
221 ConstChar16Ptr::ConstChar16Ptr(
const std::nullptr_t p) : p_(p) {}
223 U_ALIASING_BARRIER(p_);
230 ConstChar16Ptr::ConstChar16Ptr(
const char16_t *p) { u_.cp = p; }
231 #if !U_CHAR16_IS_TYPEDEF 232 ConstChar16Ptr::ConstChar16Ptr(
const uint16_t *p) { u_.up = p; }
234 #if U_SIZEOF_WCHAR_T==2 235 ConstChar16Ptr::ConstChar16Ptr(
const wchar_t *p) { u_.wp = p; }
237 ConstChar16Ptr::ConstChar16Ptr(
const std::nullptr_t p) { u_.cp = p; }
252 #ifdef U_ALIASING_BARRIER 253 U_ALIASING_BARRIER(p);
255 return reinterpret_cast<const UChar *
>(p);
266 #ifdef U_ALIASING_BARRIER 267 U_ALIASING_BARRIER(p);
269 return reinterpret_cast<UChar *
>(p);
280 #ifdef U_ALIASING_BARRIER 281 U_ALIASING_BARRIER(p);
283 return reinterpret_cast<const OldUChar *
>(p);
294 #ifdef U_ALIASING_BARRIER 295 U_ALIASING_BARRIER(p);
297 return reinterpret_cast<OldUChar *
>(p);
302 #endif // __CHAR16PTR_H__ char16_t * get() const
Pointer access.
uint16_t OldUChar
Default ICU 58 definition of UChar.
const OldUChar * toOldUCharPtr(const char16_t *p)
Converts from const char16_t * to const OldUChar *.
#define U_NAMESPACE_BEGIN
This is used to begin a declaration of a public ICU C++ API.
~ConstChar16Ptr()
Destructor.
const UChar * toUCharPtr(const char16_t *p)
Converts from const char16_t * to const UChar *.
const char16_t * get() const
Pointer access.
uint16_t UChar
The base type for UTF-16 code units and pointers.
#define U_NAMESPACE_END
This is used to end a declaration of a public ICU C++ API.
char16_t * wrapper with implicit conversion from distinct but bit-compatible pointer types...
const char16_t * wrapper with implicit conversion from distinct but bit-compatible pointer types...
Basic definitions for ICU, for both C and C++ APIs.
#define U_COMMON_API
Set to export library symbols from inside the common library, and to import them from outside...