return *a - *b;
return UpperToLower[*a] - UpperToLower[*b];
int sqliteStrICmp(const char *zLeft, const char *zRight){  register unsigned char *a, *b;  a = (unsigned char *)zLeft;  b = (unsigned char *)zRight;  while( *a!=0 && UpperToLower[*a]==UpperToLower[*b]){ a++; b++; }  return *a - *b;}