[go-nuts] []byte to int32

[kar]

is there a way to convert byte arrays to integer in GO?. here is my
situation, im porting my legacy C program to Go, and in old codes, i
have special integer sizes, int8, int16, (int24 - 3bytes), int32,
(int40 - 5bytes), int64. that way provides some compression to my
internal database format. so when i read a 3-bytes (int24) from the
DB, i need to convert it to int32 for processing. any suggestion on
how to convert this?

thanks in advance.


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[Roger Pau Monné]

You could use something like:

number := uint32(byte[0]) | (uint32(byte[1]) << 8) | (uint32(byte[2]) << 16) | ....

The encoding/binary package has some examples.

2010/4/21 kar <akma...@gmail.com>

[kar]

good to know i could cast byte directly to int and shift it. thanks

On Apr 21, 4:28 pm, Roger Pau Monné <roy...@gmail.com> wrote:
> You could use something like:
>
> number := uint32(byte[0]) | (uint32(byte[1]) << 8) | (uint32(byte[2]) << 16)
> | ....
>
> The encoding/binary package has some examples.
>

> 2010/4/21 kar <akmal...@gmail.com>