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Kuidas toimub mälu jaotamine ja haldamine süsteemis Memory Allocator abil?

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In Go, memory management is performed by the built-in Memory Allocator, which automatically allocates and frees memory. When creating variables or objects, memory is allocated from the heap or stack depending on the scope and lifetime of the object.

Main features:

  • Automatic memory management: Go uses a Garbage Collector that periodically frees unused memory.
  • Memory allocation: The functions new and make are used respectively for allocating memory for objects, slices, maps, and channels.
  • Optimization: The compiler analyzes where the object should be placed — on the stack or on the heap — to minimize overhead.

Example of memory allocation:

package main

import "fmt"

func main() {
    // new allocates memory for an int and returns a pointer
    p := new(int)
    *p = 10
    fmt.Println(*p) // 10

    // make allocates and initializes a slice
    s := make([]int, 3)
    s[0] = 1
    fmt.Println(s) // [1 0 0]
}

Thus, the Memory Allocator in Go ensures efficient and safe memory management without the need for manual freeing.