Simple contract - but solc compiler hangs

mjackson001mjackson001 Member Posts: 9
I have a simple contract that hangs solc when computing the gas estimate:

$ solc --gas simple.sol

The function was meant to compute a natural log estimate using fixed point math with 'int128's where 1=1000000. Aside from the ugly coding (I was just experimenting around), the solc compiler doesn't seem to know what to do with it:

Any ideas?

contract simple {
function ln(int128 x) constant returns (int128 result) {
int128 t = x / 256;
int128 y = 5545177;
x = t;
t = x * 16; if (t <= 1000000) { x = t; y = y - 2772588; }
t = x * 4; if (t <= 1000000) { x = t; y = y - 1386294; }
t = x * 2; if (t <= 1000000) { x = t; y = y - 693147; }
t = x + x / 2; if (t <= 1000000) { x = t; y = y - 405465; }
t = x + x / 4; if (t <= 1000000) { x = t; y = y - 223144; }
t = x + x / 8; if (t <= 1000000) { x = t; y = y - 117783; }
t = x + x / 16; if (t <= 1000000) { x = t; y = y - 60624; }
t = x + x / 32; if (t <= 1000000) { x = t; y = y - 30771; }
t = x + x / 64; if (t <= 1000000) { x = t; y = y - 15504; }
t = x + x / 128; if (t <= 1000000) { x = t; y = y - 7782; }
t = x + x / 256; if (t <= 1000000) { x = t; y = y - 3898; }
t = x + x / 512; if (t <= 1000000) { x = t; y = y - 1951; }
t = x + x / 1024; if (t <= 1000000) { x = t; y = y - 976; }
t = x + x / 2048; if (t <= 1000000) { x = t; y = y - 488; }
t = x + x / 4096; if (t <= 1000000) { x = t; y = y - 244; }
t = x + x / 8192; if (t <= 1000000) { x = t; y = y - 122; }
t = x + x / 16384; if (t <= 1000000) { x = t; y = y - 61; }
t = x + x / 32768; if (t <= 1000000) { x = t; y = y - 31; }
t = x + x / 65536; if (t <= 1000000) { y = y - 15; }
return y;
}
}

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