The variable e is a pointer to an array of n + 1 elements of type double. Using the dereference operator on e gives you the base-type of e which is ” array of n + 1 elements of type double“. The malloc call simply takes the base-type of e (explained above) and gets its … Read more
Simple declaration var s []int does not allocate memory and s points to nil, while s := make([]int, 0) allocates memory and s points to memory to a slice with 0 elements. Usually, the first one is more idiomatic if you don’t know the exact size of your use case.
Managing the lifetimes of garbage-collected objects [closed]
The answer is right there in the man page (at least on Linux): RETURN VALUE The alloca() function returns a pointer to the beginning of the allocated space. If the allocation causes stack overflow, program behaviour is undefined. Which isn’t to say it should never be used. One of the OSS projects I work on … Read more