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1 // RUN: %clang_cc1 -triple i686-apple-darwin9 %s -fsyntax-only -verify
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2 // expected-no-diagnostics
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3
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4 #include <stddef.h>
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5
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6 #pragma pack(4)
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7
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8 // Baseline
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9 struct s0 {
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10 char f0;
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11 int f1;
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12 };
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13 extern int a0[offsetof(struct s0, f1) == 4 ? 1 : -1];
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14
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15 #pragma pack(push, 2)
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16 struct s1 {
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17 char f0;
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18 int f1;
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19 };
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20 extern int a1[offsetof(struct s1, f1) == 2 ? 1 : -1];
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21 #pragma pack(pop)
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22
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23 #pragma pack(1)
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24 struct s3_0 {
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25 char f0;
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26 int f1;
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27 };
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28 #pragma pack()
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29 struct s3_1 {
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30 char f0;
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31 int f1;
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32 };
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33 extern int a3_0[offsetof(struct s3_0, f1) == 1 ? 1 : -1];
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34 extern int a3_1[offsetof(struct s3_1, f1) == 4 ? 1 : -1];
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35
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36 // pack(0) is like pack()
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37 #pragma pack(1)
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38 struct s4_0 {
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39 char f0;
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40 int f1;
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41 };
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42 #pragma pack(0)
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43 struct s4_1 {
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44 char f0;
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45 int f1;
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46 };
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47 extern int a4_0[offsetof(struct s4_0, f1) == 1 ? 1 : -1];
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48 extern int a4_1[offsetof(struct s4_1, f1) == 4 ? 1 : -1];
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49
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50 void f() {
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51 #pragma pack(push, 2)
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52 struct s5_0 {
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53 char f0;
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54 struct s2_4_0 {
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55 int f0;
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56 } f1;
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57 };
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58 #pragma pack(pop)
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59 extern int s5_0[offsetof(struct s5_0, f1) == 2 ? 1 : -1];
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60 }
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