[Solved] Why does pointer assignment cause variable assignment to not always stick?

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The problem is with the pointer assignments as you build the slice you are trying to reference. The addresses keep changing.

func main(){
    var lump []int
    
    // A loop to build a slice of `int`'s from 0 size to 8 size
    // and print each index address
    for i:= 0; i < 8; i++{
        lump = append(lump, int(i))
        fmt.Printf("addr of lump[%v]: %p\n",i, &lump[i])
    }
    
    fmt.Println()
    
    // A loop to look at the addresses of each index
    for i := range lump{
        fmt.Printf("addr of lump[%v]: %p\n",i, &lump[i])
    }
}

Check out the addresses not being created in sequential memory locations.

//while building the slice
// notice the addresses making big jumps
addr of lump[0]: 0xc00000a0c8
addr of lump[1]: 0xc00000a0f8
addr of lump[2]: 0xc00000e3b0
addr of lump[3]: 0xc00000e3b8
addr of lump[4]: 0xc00000c2e0
addr of lump[5]: 0xc00000c2e8
addr of lump[6]: 0xc00000c2f0
addr of lump[7]: 0xc00000c2f8

//after building the slice
// notice all address being sequential
addr of lump[0]: 0xc00000c2c0
addr of lump[1]: 0xc00000c2c8
addr of lump[2]: 0xc00000c2d0
addr of lump[3]: 0xc00000c2d8
addr of lump[4]: 0xc00000c2e0
addr of lump[5]: 0xc00000c2e8
addr of lump[6]: 0xc00000c2f0
addr of lump[7]: 0xc00000c2f8

You could move to C/C++ where you could handle all the memory adjustments as the array increases in size. Or build one slice then the other.

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solved Why does pointer assignment cause variable assignment to not always stick?