System Memory s-memory ads (GNAT Reference Manual)

### 12.137 `System.Memory` (`s-memory.ads`) ¶

This package provides the interface to the low level routines used by the generated code for allocation and freeing storage for the default storage pool (analogous to the C routines malloc and free). It also provides a reallocation interface analogous to the C routine realloc. The body of this unit may be modified to provide alternative allocation mechanisms for the default pool, and in addition, direct calls to this unit may be made for low level allocation uses (for example see the body of `GNAT.Tables`).