98 #define DO1(buf,i)  {adler += (buf)[i]; sum2 += adler;}  argument
99 #define DO2(buf,i)  DO1(buf,i); DO1(buf,i+1);  argument
100 #define DO4(buf,i)  DO2(buf,i); DO2(buf,i+2);  argument
101 #define DO8(buf,i)  DO4(buf,i); DO4(buf,i+4);  argument
102 #define DO16(buf)   DO8(buf,0); DO8(buf,8);  argument
110 unsigned long adler32( unsigned long adler, const unsigned char *buf, unsigned int len )  in adler32()  argument
121     adler += buf[0];  in adler32()
131   if (buf == 0)  in adler32()
137       adler += *buf++;  in adler32()
151       DO16(buf);          /* 16 sums unrolled */  in adler32()
152       buf += 16;  in adler32()
162       DO16(buf);  in adler32()
163       buf += 16;  in adler32()
166       adler += *buf++;  in adler32()