static unsafe bool InternalStrcpy(byte *dest, int destPos, byte *src, int srcPos, int count)
{
/* Get size of src and dest */
int srcLength = *(int *)(src + StringOperations.GetLengthOffset());
int destLength = *(int *)(dest + StringOperations.GetLengthOffset());
/* Ensure the source and destination are big enough */
if (destPos < 0)
{
return(false);
}
if (srcPos < 0)
{
return(false);
}
if (count < 0)
{
return(false);
}
if (destPos + count > destLength)
{
return(false);
}
if (srcPos + count > srcLength)
{
return(false);
}
/* Do the copy */
MemoryOperations.MemCpy((void *)(dest + StringOperations.GetDataOffset() + destPos * 2),
(void *)(src + StringOperations.GetDataOffset() + srcPos * 2), count * 2);
return(true);
}
static unsafe void StringCtor(byte *str, sbyte *value)
{
int len = strlen((byte *)value);
void *dst = str + StringOperations.GetDataOffset();
mbstowcs((char *)dst, (byte *)value, len);
}
static unsafe void StringCtor(byte *str, char *value, int startIndex, int length)
{
void *src = value + startIndex;
int len = length * sizeof(char);
void *dst = str + StringOperations.GetDataOffset();
MemoryOperations.MemCpy(dst, src, len);
}
static unsafe void StringCtor(byte *str, char[] srcArr, int startIndex, int length)
{
void *src = (byte *)MemoryOperations.GetInternalArray(srcArr) + sizeof(char) * startIndex;
int len = length * sizeof(char);
void *dst = str + StringOperations.GetDataOffset();
MemoryOperations.MemCpy(dst, src, len);
}
static unsafe void StringCtor(byte *str, char[] srcArr)
{
void *src = MemoryOperations.GetInternalArray(srcArr);
int len = srcArr.Length * sizeof(char);
void *dst = str + StringOperations.GetDataOffset();
MemoryOperations.MemCpy(dst, src, len);
}
static unsafe void StringCtor(byte *str, char c, int count)
{
char *dst = (char *)(str + StringOperations.GetDataOffset());
for (int i = 0; i < count; i++)
{
*dst++ = c;
}
}
static unsafe int CompareOrdinalHelper(byte *strA, int indexA, int countA, byte *strB, int indexB, int countB)
{
char *a = (char *)(strA + StringOperations.GetDataOffset()) + indexA;
char *b = (char *)(strB + StringOperations.GetDataOffset()) + indexB;
for (int i = 0; i < countA; i++, a++, b++)
{
if (*a < *b)
{
return(-1);
}
else if (*a > *b)
{
return(1);
}
}
return(0);
}