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")
31 #elif defined(U_IN_DOXYGEN)
32 # define U_ALIASING_BARRIER(ptr)
47 #if !U_CHAR16_IS_TYPEDEF
55 #if U_SIZEOF_WCHAR_T==2 || defined(U_IN_DOXYGEN)
81 inline char16_t *get()
const;
87 inline operator char16_t *()
const {
return get(); }
92 #ifdef U_ALIASING_BARRIER
93 template<
typename T>
static char16_t *cast(T *t) {
95 return reinterpret_cast<char16_t *>(t);
109 #ifdef U_ALIASING_BARRIER
111 Char16Ptr::Char16Ptr(char16_t *p) : p_(p) {}
112 #if !U_CHAR16_IS_TYPEDEF
113 Char16Ptr::Char16Ptr(uint16_t *p) : p_(cast(p)) {}
115 #if U_SIZEOF_WCHAR_T==2
116 Char16Ptr::Char16Ptr(
wchar_t *p) : p_(cast(p)) {}
118 Char16Ptr::Char16Ptr(std::nullptr_t p) : p_(p) {}
127 Char16Ptr::Char16Ptr(char16_t *p) { u_.cp = p; }
128 #if !U_CHAR16_IS_TYPEDEF
129 Char16Ptr::Char16Ptr(uint16_t *p) { u_.up = p; }
131 #if U_SIZEOF_WCHAR_T==2
132 Char16Ptr::Char16Ptr(
wchar_t *p) { u_.wp = p; }
134 Char16Ptr::Char16Ptr(std::nullptr_t p) { u_.cp = p; }
154 #if !U_CHAR16_IS_TYPEDEF
162 #if U_SIZEOF_WCHAR_T==2 || defined(U_IN_DOXYGEN)
189 inline const char16_t *get()
const;
195 inline operator const char16_t *()
const {
return get(); }
200 #ifdef U_ALIASING_BARRIER
201 template<
typename T>
static const char16_t *cast(
const T *t) {
203 return reinterpret_cast<const char16_t *>(t);
217 #ifdef U_ALIASING_BARRIER
219 ConstChar16Ptr::ConstChar16Ptr(
const char16_t *p) : p_(p) {}
220 #if !U_CHAR16_IS_TYPEDEF
221 ConstChar16Ptr::ConstChar16Ptr(
const uint16_t *p) : p_(cast(p)) {}
223 #if U_SIZEOF_WCHAR_T==2
224 ConstChar16Ptr::ConstChar16Ptr(
const wchar_t *p) : p_(cast(p)) {}
226 ConstChar16Ptr::ConstChar16Ptr(
const std::nullptr_t p) : p_(p) {}
235 ConstChar16Ptr::ConstChar16Ptr(
const char16_t *p) { u_.cp = p; }
236 #if !U_CHAR16_IS_TYPEDEF
237 ConstChar16Ptr::ConstChar16Ptr(
const uint16_t *p) { u_.up = p; }
239 #if U_SIZEOF_WCHAR_T==2
240 ConstChar16Ptr::ConstChar16Ptr(
const wchar_t *p) { u_.wp = p; }
242 ConstChar16Ptr::ConstChar16Ptr(
const std::nullptr_t p) { u_.cp = p; }
258 #ifdef U_ALIASING_BARRIER
261 return reinterpret_cast<const UChar *>(p);
272 #ifdef U_ALIASING_BARRIER
275 return reinterpret_cast<UChar *>(p);
286 #ifdef U_ALIASING_BARRIER
289 return reinterpret_cast<const OldUChar *>(p);
300 #ifdef U_ALIASING_BARRIER
303 return reinterpret_cast<OldUChar *>(p);
308 #endif // __CHAR16PTR_H__