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Issue #1971 - Part 2: Update ICU source to 63.2.

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Job Bautista 2022-07-24 21:03:27 +08:00 • committed by roytam1
commit 1e69214382
3160 changed files with 275815 additions and 234203 deletions
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86
intl/icu/source/common/cmemory.h
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@ -1,4 +1,4 @@
// Copyright (C) 2016 and later: Unicode, Inc. and others.
// © 2016 and later: Unicode, Inc. and others.
// License & terms of use: http://www.unicode.org/copyright.html
/*
******************************************************************************
@ -36,31 +36,10 @@
#include <stdio.h>
#endif
#if U_DEBUG
/*
* The C++ standard requires that the source pointer for memcpy() & memmove()
* is valid, not NULL, and not at the end of an allocated memory block.
* In debug mode, we read one byte from the source point to verify that it's
* a valid, readable pointer.
*/
U_CAPI void uprv_checkValidMemory(const void *p, size_t n);
#define uprv_memcpy(dst, src, size) ( \
uprv_checkValidMemory(src, 1), \
U_STANDARD_CPP_NAMESPACE memcpy(dst, src, size))
#define uprv_memmove(dst, src, size) ( \
uprv_checkValidMemory(src, 1), \
U_STANDARD_CPP_NAMESPACE memmove(dst, src, size))
#else
#define uprv_memcpy(dst, src, size) U_STANDARD_CPP_NAMESPACE memcpy(dst, src, size)
#define uprv_memmove(dst, src, size) U_STANDARD_CPP_NAMESPACE memmove(dst, src, size)
#endif /* U_DEBUG */
/**
* \def UPRV_LENGTHOF
* Convenience macro to determine the length of a fixed array at compile-time.
@ -162,7 +141,6 @@ public:
* @param p simple pointer to an array of T items that is adopted
*/
explicit LocalMemory(T *p=NULL) : LocalPointerBase<T>(p) {}
#if U_HAVE_RVALUE_REFERENCES
/**
* Move constructor, leaves src with isNull().
* @param src source smart pointer
@ -170,14 +148,12 @@ public:
LocalMemory(LocalMemory<T> &&src) U_NOEXCEPT : LocalPointerBase<T>(src.ptr) {
src.ptr=NULL;
}
#endif
/**
* Destructor deletes the memory it owns.
*/
~LocalMemory() {
uprv_free(LocalPointerBase<T>::ptr);
}
#if U_HAVE_RVALUE_REFERENCES
/**
* Move assignment operator, leaves src with isNull().
* The behavior is undefined if *this and src are the same object.
@ -187,7 +163,6 @@ public:
LocalMemory<T> &operator=(LocalMemory<T> &&src) U_NOEXCEPT {
return moveFrom(src);
}
#endif
/**
* Move assignment, leaves src with isNull().
* The behavior is undefined if *this and src are the same object.
@ -197,7 +172,7 @@ public:
* @return *this
*/
LocalMemory<T> &moveFrom(LocalMemory<T> &src) U_NOEXCEPT {
delete[] LocalPointerBase<T>::ptr;
uprv_free(LocalPointerBase<T>::ptr);
LocalPointerBase<T>::ptr=src.ptr;
src.ptr=NULL;
return *this;
@ -304,6 +279,10 @@ inline T *LocalMemory<T>::allocateInsteadAndCopy(int32_t newCapacity, int32_t le
*
* Unlike LocalMemory and LocalArray, this class never adopts
* (takes ownership of) another array.
*
* WARNING: MaybeStackArray only works with primitive (plain-old data) types.
* It does NOT know how to call a destructor! If you work with classes with
* destructors, consider LocalArray in localpointer.h.
*/
template<typename T, int32_t stackCapacity>
class MaybeStackArray {
@ -312,10 +291,26 @@ public:
* Default constructor initializes with internal T[stackCapacity] buffer.
*/
MaybeStackArray() : ptr(stackArray), capacity(stackCapacity), needToRelease(FALSE) {}
/**
* Automatically allocates the heap array if the argument is larger than the stack capacity.
* Intended for use when an approximate capacity is known at compile time but the true
* capacity is not known until runtime.
*/
MaybeStackArray(int32_t newCapacity) : MaybeStackArray() {
if (capacity < newCapacity) { resize(newCapacity); }
};
/**
* Destructor deletes the array (if owned).
*/
~MaybeStackArray() { releaseArray(); }
/**
* Move constructor: transfers ownership or copies the stack array.
*/
MaybeStackArray(MaybeStackArray<T, stackCapacity> &&src) U_NOEXCEPT;
/**
* Move assignment: transfers ownership or copies the stack array.
*/
MaybeStackArray<T, stackCapacity> &operator=(MaybeStackArray<T, stackCapacity> &&src) U_NOEXCEPT;
/**
* Returns the array capacity (number of T items).
* @return array capacity
@ -393,6 +388,11 @@ private:
uprv_free(ptr);
}
}
void resetToStackArray() {
ptr=stackArray;
capacity=stackCapacity;
needToRelease=FALSE;
}
/* No comparison operators with other MaybeStackArray's. */
bool operator==(const MaybeStackArray & /*other*/) {return FALSE;}
bool operator!=(const MaybeStackArray & /*other*/) {return TRUE;}
@ -415,6 +415,34 @@ private:
#endif
};
template<typename T, int32_t stackCapacity>
icu::MaybeStackArray<T, stackCapacity>::MaybeStackArray(
MaybeStackArray <T, stackCapacity>&& src) U_NOEXCEPT
: ptr(src.ptr), capacity(src.capacity), needToRelease(src.needToRelease) {
if (src.ptr == src.stackArray) {
ptr = stackArray;
uprv_memcpy(stackArray, src.stackArray, sizeof(T) * src.capacity);
} else {
src.resetToStackArray(); // take ownership away from src
}
}
template<typename T, int32_t stackCapacity>
inline MaybeStackArray <T, stackCapacity>&
MaybeStackArray<T, stackCapacity>::operator=(MaybeStackArray <T, stackCapacity>&& src) U_NOEXCEPT {
releaseArray(); // in case this instance had its own memory allocated
capacity = src.capacity;
needToRelease = src.needToRelease;
if (src.ptr == src.stackArray) {
ptr = stackArray;
uprv_memcpy(stackArray, src.stackArray, sizeof(T) * src.capacity);
} else {
ptr = src.ptr;
src.resetToStackArray(); // take ownership away from src
}
return *this;
}
template<typename T, int32_t stackCapacity>
inline T *MaybeStackArray<T, stackCapacity>::resize(int32_t newCapacity, int32_t length) {
if(newCapacity>0) {
@ -464,9 +492,7 @@ inline T *MaybeStackArray<T, stackCapacity>::orphanOrClone(int32_t length, int32
uprv_memcpy(p, ptr, (size_t)length*sizeof(T));
}
resultCapacity=length;
ptr=stackArray;
capacity=stackCapacity;
needToRelease=FALSE;
resetToStackArray();
return p;
}