You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: main.go
    path of file: ./repos/100-go-mistakes/src/03-data-types/18-integer-overflows
    
    the code of the file until where you have to start completion: package main

import "math"

func Inc32(counter int32) int32 {
	if counter == math.MaxInt32 {
		panic("int32 overflow")
	}
	ret
    
func MultiplyInt(a, b int) int {
	if a == 0 || b == 0 {
		return 0
	}

	result := a * b
	if a == 1 || b == 1 {
		return result
	}
	if a == math.MinInt || b == math.MinInt {
		panic("integer overflow")
	}
	if result/b != a {
		panic("integer overflow")
	}
	return result
}