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Imported Upstream version 4.0.1

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Former-commit-id: 757121caeaad523350be5330f0a3ecc891c70fb8
This commit is contained in:
Jo Shields
2015-04-26 19:10:23 +01:00
parent 7fce50ac98
commit c54b0bda4e
252 changed files with 16715 additions and 1176 deletions
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67
external/referencesource/mscorlib/system/globalization/charunicodeinfo.cs vendored
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@@ -109,6 +109,54 @@ namespace System.Globalization {
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
@@ -125,11 +173,11 @@ namespace System.Globalization {
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;
}
@@ -254,11 +302,11 @@ namespace System.Globalization {
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
@@ -448,12 +496,13 @@ namespace System.Globalization {
[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)];