[Overview][Constants][Procedures and functions][Index] | Reference for unit 'cmem' (#rtl)

# Reference for unit 'cmem'

Memory manager replacement using the C memory manager

`uses`
`System;` |  | The system unit

## Overview

The cmem memory manager sets the system units memory manager to a C-based memory manager: all memory management calls are shunted through to the C memory manager, using Malloc, Free and ReAlloc. For this reason, the cmem unit should be the first unit of the uses clause of the program.

The unit also offers the C memory calls directly as external declarations from the C library, but it is recommended to use the normal FPC routines for this.

Obviously, including this unit links your program to the C library.

Remark: | Note that specifying the -gv command-line option, to enable valgrind debugging info will implicitly add this unit to your program.