internal sbyte digit;
}
+ unsafe private static int EndianSwap(int value)
+ {
+ if (!BitConverter.IsLittleEndian) {
+ byte *ptr = (byte *) &value;
+ int res;
+ byte *buf = (byte *) &res;
+ int t = sizeof(int) - 1;
+
+ for (int i = 0; i < sizeof(int); i++)
+ buf[t-i] = ptr[i];
+
+ return(res);
+ } else
+ return(value);
+ }
+
+ unsafe private static uint EndianSwap(uint value)
+ {
+ if (!BitConverter.IsLittleEndian) {
+ byte *ptr = (byte *) &value;
+ uint res;
+ byte *buf = (byte *) &res;
+ uint t = sizeof(uint) - 1;
+
+ for (uint i = 0; i < sizeof(uint); i++)
+ buf[t-i] = ptr[i];
+
+ return(res);
+ } else
+ return(value);
+ }
+
+ unsafe private static ushort EndianSwap(ushort value)
+ {
+ if (!BitConverter.IsLittleEndian) {
+ byte *ptr = (byte *) &value;
+ ushort res;
+ byte *buf = (byte *) &res;
+ ushort t = sizeof(ushort) - 1;
+
+ for (ushort i = 0; i < sizeof(ushort); i++)
+ buf[t-i] = ptr[i];
+
+ return(res);
+ } else
+ return(value);
+ }
+
//We need to allocate the underlying table that provides us with the information that we
//use. We allocate this once in the class initializer and then we don't need to worry
UnicodeDataHeader* mainHeader = (UnicodeDataHeader*)pDataTable;
// Set up the native pointer to different part of the tables.
- s_pCategoryLevel1Index = (ushort*) (pDataTable + mainHeader->OffsetToCategoriesIndex);
- s_pCategoriesValue = (byte*) (pDataTable + mainHeader->OffsetToCategoriesValue);
- s_pNumericLevel1Index = (ushort*) (pDataTable + mainHeader->OffsetToNumbericIndex);
- s_pNumericValues = (byte*) (pDataTable + mainHeader->OffsetToNumbericValue);
- s_pDigitValues = (DigitValues*) (pDataTable + mainHeader->OffsetToDigitValue);
+ s_pCategoryLevel1Index = (ushort*) (pDataTable + EndianSwap(mainHeader->OffsetToCategoriesIndex));
+ s_pCategoriesValue = (byte*) (pDataTable + EndianSwap(mainHeader->OffsetToCategoriesValue));
+ s_pNumericLevel1Index = (ushort*) (pDataTable + EndianSwap(mainHeader->OffsetToNumbericIndex));
+ s_pNumericValues = (byte*) (pDataTable + EndianSwap(mainHeader->OffsetToNumbericValue));
+ s_pDigitValues = (DigitValues*) (pDataTable + EndianSwap(mainHeader->OffsetToDigitValue));
return true;
}
internal unsafe static double InternalGetNumericValue(int ch) {
Contract.Assert(ch >= 0 && ch <= 0x10ffff, "ch is not in valid Unicode range.");
// Get the level 2 item from the highest 12 bit (8 - 19) of ch.
- ushort index = s_pNumericLevel1Index[ch >> 8];
+ ushort index = EndianSwap(s_pNumericLevel1Index[ch >> 8]);
// Get the level 2 WORD offset from the 4 - 7 bit of ch. This provides the base offset of the level 3 table.
// The offset is referred to an float item in m_pNumericFloatData.
// Note that & has the lower precedence than addition, so don't forget the parathesis.
- index = s_pNumericLevel1Index[index + ((ch >> 4) & 0x000f)];
+ index = EndianSwap(s_pNumericLevel1Index[index + ((ch >> 4) & 0x000f)]);
byte* pBytePtr = (byte*)&(s_pNumericLevel1Index[index]);
// Get the result from the 0 -3 bit of ch.
#if WIN64
[System.Security.SecuritySafeCritical] // auto-generated
internal unsafe static byte InternalGetCategoryValue(int ch, int offset) {
+
Contract.Assert(ch >= 0 && ch <= 0x10ffff, "ch is not in valid Unicode range.");
// Get the level 2 item from the highest 12 bit (8 - 19) of ch.
- ushort index = s_pCategoryLevel1Index[ch >> 8];
+ ushort index = EndianSwap(s_pCategoryLevel1Index[ch >> 8]);
// Get the level 2 WORD offset from the 4 - 7 bit of ch. This provides the base offset of the level 3 table.
// Note that & has the lower precedence than addition, so don't forget the parathesis.
- index = s_pCategoryLevel1Index[index + ((ch >> 4) & 0x000f)];
+ index = EndianSwap(s_pCategoryLevel1Index[index + ((ch >> 4) & 0x000f)]);
byte* pBytePtr = (byte*)&(s_pCategoryLevel1Index[index]);
// Get the result from the 0 -3 bit of ch.
byte valueIndex = pBytePtr[(ch & 0x000f)];