| static private memcpy ( byte src, int srcIndex, byte dest, int destIndex, int len ) : void | ||
| src | byte | |
| srcIndex | int | |
| dest | byte | |
| destIndex | int | |
| len | int | |
| return | void | |
public String(char *value)
{
Length = wcslen(value);
void *size = (void *)(Length * sizeof(char));
buffer = (char *)GC.CS2X_Malloc(size);
Buffer.memcpy(buffer, value, size);
}
internal static unsafe void FillStringChecked(string dest, int destPos, string src)
{
if (src.Length > dest.Length - destPos)
{
throw new IndexOutOfRangeException();
fixed(char *pDest = &dest._firstChar)
fixed(char *pSrc = &src._firstChar)
{
Buffer.memcpy(pDest + destPos, pSrc, (UIntPtr)(src.Length * sizeof(char)));
}
}
private static unsafe char[] GetEnvironmentCharArray()
{
char[] chArray = null;
RuntimeHelpers.PrepareConstrainedRegions();
try
{
}
finally
{
char *pSrc = null;
try
{
pSrc = Win32Native.GetEnvironmentStrings();
if (pSrc == null)
{
throw new OutOfMemoryException();
}
char *chPtr2 = pSrc;
while ((chPtr2[0] != '\0') || (chPtr2[1] != '\0'))
{
chPtr2++;
}
int len = (int)(((long)((chPtr2 - pSrc) / 2)) + 1L);
chArray = new char[len];
try
{
fixed(char *chRef = chArray)
{
Buffer.memcpy(pSrc, 0, chRef, 0, len);
}
}
finally
{
chRef = null;
}
}
finally
{
if (pSrc != null)
{
Win32Native.FreeEnvironmentStrings(pSrc);
}
}
}
return(chArray);
}
