double buff = (double )inventoryData.getPrice();
size_t size = sizeof(double)+1;
Dbt key(&buff, (u_int32_t)size);

buff = inventoryData.getBuffer();
size = inventoryData.getBufferSize();
Dbt data(buff, (u_int32_t)size);
inventoryDB.getDb().put(NULL, &key, &data, 0);

The constructor must be Dbt:bt (const Dbt&) or (void *)
but why I saw an example from sleepycat's manual which does this pg 20
of C++ reference manual

float money = 122.45;
char *description = "Grocery bill."

Dbt key(&money, sizeof(float));
Dbt data (description, strlen (description)+1);
Thanks
Jack

I changed it to Dbt key((void*)&buff, sizeof(float));
and it worked okay

Is there any way that I can use a float as the key?
Thanks
Jack

Jack,

Please use this example where money is used as a floating point key:

http://www.sleepycat.com/docs/gsg/C/...#databaseWrite

Ron

Jack,

A couple more things:

In your code you are setting size to:
size_t size = sizeof(double)+1;

I'm not sure why you wanted to do that. I'm also not sure what you
mean by won't work.

Floats do indeed work as keys so you'll need to debug your code if you
are having problems. But you should be able to use the example in the
documentation to help you find your problem. Running though both the
example and your code through the debugger may help.

Ron