MD4_LONG
const MD4_LONG *in32;
in32 = (const MD4_LONG *)in;
MD4_LONG l;
l = (c->Nl + (((MD4_LONG)len) << 3))&0xffffffffUL;
c->Nh+=(MD4_LONG)(len>>29); /* might cause compiler warning on 16-bit */
CTASSERT(sizeof(MD4_LONG) == sizeof(uint32_t));
MD4_LONG A, B,C, D;
MD4_LONG Nl, Nh;
MD4_LONG data[MD4_LBLOCK];