simple/hogs/memhog.c

#include <errno.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>

int main(void) {
        size_t s = 0x100000;
	size_t sum = 0;

        while (s) {
                void *p;
		errno = 0;
                if (p = malloc(s)) {
			sum += s;
                        printf("%lu - %lu\n",
			       (unsigned long)s,
			       (unsigned long)sum);
                        sleep (1);
                        memset(p, 'a', s);
			s *= 2;
                } else {
                        printf("%lu - %lu: %s\n",
			       (unsigned long)s,
			       (unsigned long)sum,
			       strerror(errno)
			      );
                        s /= 2;
                }
        }
        return 0;
}