allocation.md

Overview

• Summary of (heap) allocation mechanisms

make function

1. Creates slices, maps, channels
2. returns initialized T
3. assignment creates a new variable which points to the same storage location
   1. Similar to a reference in c++ (but not the same)
4. returns a pointer
5. Official docs

new function

1. Allocates memory on heap (like calloc in c)
2. Does NOT initialize memory
3. Official docs

Idioms

1. Use make 90% of the time

Other Resources

1. https://go101.org/optimizations/0.3-memory-allocations.html
2. make
3. new
4. Effective Go > make
5. Effective Go > new