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/* Spurious uninitialized variable warnings.
This one inspired by java/class.c:build_utf8_ref. */
/* { dg-do compile } */
/* { dg-options "-O -Wuninitialized" } */
#include <stddef.h>
struct tree
{
struct tree *car;
struct tree *cdr;
int type, data;
};
extern void *malloc(size_t);
#define INTEGER_T 1
#define PTR_T 2
#define APPEND(TREE, LAST, TYPE, VALUE) \
do { \
struct tree *tmp = malloc (sizeof (struct tree)); \
tmp->car = 0; tmp->cdr = 0; tmp->type = TYPE; \
tmp->data = VALUE; \
if (TREE->car) \
LAST->cdr = tmp; \
else \
TREE->car = tmp; \
LAST = tmp; \
} while(0)
struct tree *
make_something(int a, int b, int c)
{
struct tree *rv;
struct tree *field;
rv = malloc (sizeof (struct tree));
rv->car = 0;
APPEND(rv, field, INTEGER_T, a); /* { dg-bogus "field" "uninitialized variable warning" } */
APPEND(rv, field, PTR_T, b);
APPEND(rv, field, INTEGER_T, c);
return rv;
}
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