Loading an int with bits

[DerPflug]

What is the proper way to load a 32-bit integer with 23 bit values from a database? For instance, I have a database record with 23 fields that are a bit datatype. I want to load those 23 fields' values into a 32-bit integer value and return it as one value to be parsed in a different function. Is this the idea?:

intValue = first_bit_field_value;
intValue = intValue + (second_bit_field_value * 2);
intValue = "" + (third_ "" * 4);
"" "" * 8);
"" "" 16
"" "" 32
"" "" 64
"" "" 128
"" "" 256
"" "" 512

etc...

Any help would be appreciated.

 

[lordblood]

You can just set the bit with something like (Solaris):

var |= (1 << bit_to_set);
----------------------

...

var |= (1 << 0); /*First bit ... shift 0 bits*/
var |= (1 << 1); /*Second bit ... shift 1 bit*/

printf(&quot;%d\n&quot;, var); /* Prints 3 (8-bits example) 00000011*/



Just something to think about. ;-)