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__