static int bcrc_optimal(lua_State* L)
{
Crc** ud = newudata(L);
*ud = new CrcOptimal<Optimal>();
luaL_argcheck(L, *ud, 1, "out of memory");
return 1;
}
void *kp_newuserdata(ktap_State *ks, size_t size)
{
Udata *u;
u = newudata(ks, size);
return u + 1;
}
/*-
- crc = bcrc.new(bits, poly[, initial, xor, reflect_input, reflect_remainder])
Mandatory args:
- bits=n, where n is 8, 16, 24, 32
- poly=n, where n is the polynomial
Optional args:
- initial=n, where n is the initial value for the crc, defaults to 0
- xor=n, where n is the value to xor with the final value, defaults to 0
- reflect_input=bool, defaults to false
- reflect_remainder=bool, defaults to false
Returns a crc object.
*/
static int bcrc_new(lua_State *L)
{
int bits = luaL_checkint(L, 1);
int poly = luaL_checkint(L, 2);
int initial = luaL_optint(L, 3, 0);
int xor_ = luaL_optint(L, 4, 0);
int reflect_input = lua_toboolean(L, 5);
int reflect_remainder = lua_toboolean(L, 6);
Crc** ud = newudata(L);
switch(bits) {
case 8: *ud = new CrcBasic< 8>(poly, initial, xor_, reflect_input, reflect_remainder); break;
case 16: *ud = new CrcBasic<16>(poly, initial, xor_, reflect_input, reflect_remainder); break;
case 24: *ud = new CrcBasic<24>(poly, initial, xor_, reflect_input, reflect_remainder); break;
case 32: *ud = new CrcBasic<32>(poly, initial, xor_, reflect_input, reflect_remainder); break;
default: return luaL_argerror(L, 2, "unsupported crc bit width");
}
luaL_argcheck(L, *ud, 1, "out of memory");
return 1;
}
