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131
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1 /* PR c/46921 lost side effect when struct initializer expr uses comma
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2 operator */
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3
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4 /* { dg-do run } */
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5 /* { dg-options "" } */
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6
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7 extern int printf(const char *, ...);
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8 extern void abort (void);
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9
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10 typedef struct __uws_0 { } uw_unit;
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11 uw_unit uw_unit_v = {};
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12
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13 struct __uws_1
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14 {
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15 struct __uws_0 __uwf_1;
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16 struct __uws_1* __uwf_2;
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17 };
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18
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19 static int left_hand_eval = 0;
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20
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21 static void
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22 foo (const char *s)
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23 {
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24 ++left_hand_eval;
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25 printf("%s", s);
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26 }
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27
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28 int
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29 main ()
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30 {
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31 struct __uws_1 tmp = {(foo("Inner\n"), uw_unit_v)};
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32
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33 printf("Outer\n");
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34 /* left hand expression in comma operator initializer must always be
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35 evaluated if there are side effects. */
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36 if (!left_hand_eval)
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37 abort ();
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38
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39 return 0;
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40 }
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