Home > Article > Backend Development > Golang function memory allocation principle
In Go, function memory allocation is divided into stack allocation and heap allocation. Stack allocation is used for function parameters and local variables, and the life cycle is bound to the function execution cycle. Heap allocation is used for pointer type allocation, which is managed by the garbage collection mechanism and will not be automatically released even if it goes out of scope. Understanding memory allocation principles can help optimize memory usage, avoid memory leaks, and debug memory management problems.
In the Go language, function memory allocation follows the following principles:
1. Stack allocation:
2. Heap allocation:
Practical case:
func main() { // 栈分配 var x int = 10 var y float64 = 3.14 // 堆分配 ptr := new(int) *ptr = 20 fmt.Println("栈分配:", x, y) fmt.Println("堆分配:", *ptr) }
Result:
栈分配: 10 3.14 堆分配: 20
In the output, we can see the stack allocation The variables x
and y
are automatically released at the end of the function, while the heap-allocated variable ptr
still points to space in the heap.
The importance of understanding the memory allocation principle parser:
Understanding the memory allocation principle of Go language function is very important for the following aspects:
The above is the detailed content of Golang function memory allocation principle. For more information, please follow other related articles on the PHP Chinese website!