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| subject: | Pointers |
Hi Bo.
31-Aug-03 23:49:32, Bo Simonsen wrote to All
BS> tmp = (char *) malloc(80);
BS> sprintf(tmp, "test");
could be wise to do
if (NULL != (tmp=(char*) malloc(80)) // check for available memory
sprintf(tmp,"%.79S","test"); // protect against
overrun (not needed here)
BS> int main() { printf("%s", test()); }
BS> How do i free the memory i allocated for tmp?
int main()
{
char *ptr;
ptr=test();
printf("%s",ptr);
free(ptr);
return 0;
}
you can do
char *ptr=test();
or
printf("%s",ptr=test());
to reduce the number of lines needed but you will need to use a variable
to hold the resuult from test() so you can both use it and free it.
-=> Bye <=-
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