nsHtml5ArrayCopy.h (2567B)
1 /* 2 * Copyright (c) 2008 Mozilla Foundation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 19 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 20 * DEALINGS IN THE SOFTWARE. 21 */ 22 23 #ifndef nsHtml5ArrayCopy_h 24 #define nsHtml5ArrayCopy_h 25 26 class nsHtml5StackNode; 27 28 // Unfortunately, these don't work as template functions because the arguments 29 // would need coercion from a template class, which complicates things. 30 class nsHtml5ArrayCopy { 31 public: 32 static inline void arraycopy(char16_t* source, int32_t sourceOffset, 33 char16_t* target, int32_t targetOffset, 34 int32_t length) { 35 memcpy(&(target[targetOffset]), &(source[sourceOffset]), 36 size_t(length) * sizeof(char16_t)); 37 } 38 39 static inline void arraycopy(char16_t* source, char16_t* target, 40 int32_t length) { 41 memcpy(target, source, size_t(length) * sizeof(char16_t)); 42 } 43 44 static inline void arraycopy(int32_t* source, int32_t* target, 45 int32_t length) { 46 memcpy(target, source, size_t(length) * sizeof(int32_t)); 47 } 48 49 static inline void arraycopy(nsHtml5StackNode** source, 50 nsHtml5StackNode** target, int32_t length) { 51 memcpy(target, source, size_t(length) * sizeof(nsHtml5StackNode*)); 52 } 53 54 static inline void arraycopy(nsHtml5StackNode** arr, int32_t sourceOffset, 55 int32_t targetOffset, int32_t length) { 56 memmove(&(arr[targetOffset]), &(arr[sourceOffset]), 57 size_t(length) * sizeof(nsHtml5StackNode*)); 58 } 59 }; 60 #endif // nsHtml5ArrayCopy_h