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Millistel juhtudel broneerib kompilaator automaatselt mälu dünaamilises piirkonnas (kõrbes)?
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In the Go compiler, memory on the heap is automatically allocated in the following situations:
- When a variable needs to live longer than the execution time of the function in which it is declared (escape analysis). For example, if the address of a local variable is returned from a function or stored in a structure that lives longer.
- If the variable is too large for the stack or its size is unknown at compile time.
Example:
func create() *int {
x := 10
return &x // the variable x "escapes" to the heap, as a pointer is returned
}
Here, the variable x will be placed on the heap so that the pointer remains valid after the function exits. The compiler analyzes the code (escape analysis) and decides where to allocate memory.