08-01-2001
When a new process is created it is not given unlimited memory. Much of the memory requirements come from symbols created during compile time based on memory allocation requirements. Examples in C include the
malloc system call, memory allocation.
So, the size of any array is contrained by how much space for that array was
malloc'ed for example, when the binary was compiled and process executed.
Hope this helps.
Quote:
MALLOC(3) Linux Programmer's Manual MALLOC(3)
NAME
calloc, malloc, free, realloc - Allocate and free dynamic
memory
SYNOPSIS
#include <stdlib.h>
void *calloc(size_t nmemb, size_t size);
void *malloc(size_t size);
void free(void *ptr);
void *realloc(void *ptr, size_t size);
DESCRIPTION
calloc() allocates memory for an array of nmemb elements
of size bytes each and returns a pointer to the allocated
memory. The memory is set to zero.
malloc() allocates size bytes and returns a pointer to the
allocated memory. The memory is not cleared.
( ..... extract from man page ... )
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