1. #include <stdio.h>
  3. #define checktheborders(x) \
  4. { \
  5. prev = -1; \
  6. x = 0; \
  7. \
  8. while (prev < x) \
  9. { \
  10. prev++; \
  11. x++; \
  12. } \
  13. printf("max value for " #x " is %lld\n", prev); \
  14. \
  15. prev = 1; \
  16. x = 0; \
  17. \
  18. while (prev > x) \
  19. { \
  20. prev--; \
  21. x--; \
  22. } \
  23. printf("min value for " #x " is %lld\n", prev); \
  24. }
  26. int main(void)
  27. {
  28. signed char signedchar = 0;
  29. unsigned char unsignedchar = 0;
  30. signed short int signedshortint = 0;
  31. unsigned short int unsignedshortint = 0;
  32. signed int signedint = 0;
  33. unsigned int unsignedint = 0;
  34. signed long int signedlongint = 0;
  35. unsigned long int unsignedlongint = 0;
  37. float floatvar = 0;
  38. double doublevar = 0;
  40. signed long long int prev = -1;
  42. checktheborders(signedchar);
  43. checktheborders(unsignedchar);
  44. checktheborders(signedshortint);
  45. checktheborders(unsignedshortint);
  46. checktheborders(signedint);
  47. checktheborders(unsignedint);
  48. checktheborders(signedlongint);
  49. checktheborders(unsignedlongint);
  51. checktheborders(floatvar);
  52. checktheborders(doublevar);
  54. return 0;
  55. }