I think computing memory use of any *constant* is not straightforward and
probably not worth it. Even a typed constant may only exist in an instruction
stream. For instance "var x int64 = 42" may compile down to a single
instruction (or more, depending on the underlying architecture). Or there m
On Wed, Jan 30, 2019 at 4:05 PM 伊藤和也 wrote:
> :
> So in this case below, Is the memory usage "12" bytes in total? (Question
> 1)
>
> var num int32 = 100
>> | |
>> 4 bytes + 8 bytes = 12 bytes
>
>
no. the literal "100" has no specific size and is conformed to the ta
An interger constant is "int" type and takes "8" bytes memory on 64-bit
system.
fmt.Println(unsafe.Sizeof(100)) // 8
> fmt.Println(reflect.TypeOf(100)) // int
and an "int32" type value takes "4" bytes.
var num int32
> fmt.Println(unsafe.Sizeof(num)) // 4
So in this case below, Is the memory
