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/test/Sema/pragma-pack-and-options-align.c

http://github.com/jacob-carlborg/clang
C | 42 lines | 33 code | 7 blank | 2 comment | 5 complexity | 5f2ae3fd5353e44a5fe51e4a23cf8e3c MD5 | raw file
    

  1. // RUN: %clang_cc1 -triple i686-apple-darwin9 %s -fsyntax-only -verify
    2. 

  2. 

  3. // Check that #pragma pack and #pragma options share the same stack.
    4. 

  4. 

  5. #pragma pack(push, 1)
    6. 

  6. struct s0 {
    7. 

  7.   char c;
    8. 

  8.   int x;
    9. 

  9. };
    10. 

  10. extern int a[sizeof(struct s0) == 5 ? 1 : -1];
    11. 

  11. 

  12. #pragma options align=natural
    13. 

  13. struct s1 {
    14. 

  14.   char c;
    15. 

  15.   int x;
    16. 

  16. };
    17. 

  17. extern int a[sizeof(struct s1) == 8 ? 1 : -1];
    18. 

  18. 

  19. #pragma options align=reset
    20. 

  20. #pragma options align=native
    21. 

  21. struct s1_1 {
    22. 

  22.   char c;
    23. 

  23.   int x;
    24. 

  24. };
    25. 

  25. extern int a[sizeof(struct s1_1) == 8 ? 1 : -1];
    26. 

  26. 

  27. #pragma pack(pop)
    28. 

  28. struct s2 {
    29. 

  29.   char c;
    30. 

  30.   int x;
    31. 

  31. };
    32. 

  32. extern int a[sizeof(struct s2) == 5 ? 1 : -1];
    33. 

  33. #pragma pack(pop)
    34. 

  34. 

  35. struct s3 {
    36. 

  36.   char c;
    37. 

  37.   int x;
    38. 

  38. };
    39. 

  39. extern int a[sizeof(struct s3) == 8 ? 1 : -1];
    40. 

  40. 

  41. /* expected-warning {{#pragma options align=reset failed: stack empty}} */ #pragma options align=reset
    42. 

  42. /* expected-warning {{#pragma pack(pop, ...) failed: stack empty}} */ #pragma pack(pop)
    43. 

  43.