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Tech Arsenal 1
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Tech Arsenal (Arsenal Computer).ISO
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1992-06-02
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423b
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26 lines
/*
* Listing 2 -- Error by writing a freed pointer
* (item's value may have changed)
*/
#include <stdlib.h>
#include <assert.h>
void main() {
int *ip;
/* allocate an integer */
ip = malloc(sizeof(int));
assert(ip != NULL);
/* initialize the integer */
(*ip) = 1;
/* deallocate the integer */
free(ip);
/* update the deallocated integer */
(*ip)++;
printf("*ip == %d\n",*ip);
}