I found goto useful in C.
char *p1 = alloc();
if (p1 == NULL) goto ERROR;
char *p2 = alloc();
if (p2 == NULL) goto ERROR2;
char *p3 = alloc();
if (p3 == NULL) goto ERROR3;
...
return 1;
ERROR3: free(p2);
ERROR2: free(p1);
ERROR: return 0
But with Perl's reference counting and destructors, this model isn't necessary.
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