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111
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1 /* Test for -Wtraditional warnings on union initialization.
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2 Note, gcc should omit these warnings in system header files.
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3 By Kaveh R. Ghazi <ghazi@caip.rutgers.edu> 9/11/2000. */
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4 /* { dg-do compile } */
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5 /* { dg-options "-Wtraditional" } */
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6
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7 struct bar
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8 {
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9 int i;
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10 long j;
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11 };
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12
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13 union foo
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14 {
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15 struct bar b;
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16 int i;
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17 long l;
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18 };
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19
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20 union foo2
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21 {
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22 int i;
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23 long l;
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24 };
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25
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26 struct baz
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27 {
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28 int a;
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29 double b;
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30 union foo c;
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31 };
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32
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33 struct baz2
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34 {
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35 int a;
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36 double b;
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37 union foo2 c;
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38 };
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39
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40 void
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41 testfunc ()
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42 {
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43 /* Note we only warn for nonzero initializers. Xfail on substructures. */
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44 static union foo f1 = {{0,0}}; /* { dg-bogus "traditional C rejects initialization of unions" "initialization of unions" { xfail *-*-* } } */
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45 static union foo f2 = {{1,1}}; /* { dg-warning "traditional C rejects initialization of unions" "initialization of unions" } */
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46
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47 static struct baz f3 = { 1, 2, {{0,0}} }; /* { dg-bogus "traditional C rejects initialization of unions" "initialization of unions" { xfail *-*-* } } */
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48 static struct baz f4 = { 1, 2, {{1,1}} }; /* { dg-warning "traditional C rejects initialization of unions" "initialization of unions" } */
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49
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50 static struct baz2 f5 = { 1, 2, {0} };
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51 static struct baz2 f6 = { 1, 2, {1} }; /* { dg-warning "traditional C rejects initialization of unions" "initialization of unions" } */
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52
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53 # 54 "sys-header.h" 3
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54 /* We are in system headers now, no -Wtraditional warnings should issue. */
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55
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56 static union foo b1 = {{0,0}};
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57 static union foo b2 = {{1,1}};
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58
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59 static struct baz b3 = { 1, 2, {{0,0}} };
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60 static struct baz b4 = { 1, 2, {{1,1}} };
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61
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62 static struct baz2 b5 = { 1, 2, {0} };
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63 static struct baz2 b6 = { 1, 2, {1} };
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64 }
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