04 2 오버플로 상수 매크로
0 likes92 views
The document appears to discuss data types in programming, particularly the ranges of different integer types (short, int, long) and their unsigned variants. It includes code snippets using preprocessor directives and variable definitions for currency exchange calculations. Additionally, it mentions constant definitions and calculations involving the value of pi and circle area.
![#define
:
#define [ ] [ ]](https://image.slidesharecdn.com/042-180131065456/85/04-2-56-320.jpg)
![#define
#define EXCHANGE_RATE 1120
:
#define [ ] [ ]](https://image.slidesharecdn.com/042-180131065456/85/04-2-57-320.jpg)
![#define
#define EXCHANGE_RATE 1120
:
#define [ ] [ ]
(preprocessor) [ ] [ ] .](https://image.slidesharecdn.com/042-180131065456/85/04-2-58-320.jpg)
![#define
#define EXCHANGE_RATE 1120
:
#define [ ] [ ]
(preprocessor) [ ] [ ] .](https://image.slidesharecdn.com/042-180131065456/85/04-2-59-320.jpg)
![#define
#define EXCHANGE_RATE 1120
:
#define [ ] [ ]
(preprocessor) [ ] [ ] .
...
w = EXCHANGE_RATE * 100;
...
#define EXCHANGE_RATE 1120](https://image.slidesharecdn.com/042-180131065456/85/04-2-60-320.jpg)
![#define
#define EXCHANGE_RATE 1120
:
#define [ ] [ ]
(preprocessor) [ ] [ ] .
...
w = EXCHANGE_RATE * 100;
...
#define EXCHANGE_RATE 1120](https://image.slidesharecdn.com/042-180131065456/85/04-2-61-320.jpg)
![#define
#define EXCHANGE_RATE 1120
:
#define [ ] [ ]
(preprocessor) [ ] [ ] .
...
w = EXCHANGE_RATE * 100;
...
#define EXCHANGE_RATE 1120
...
w = 1120 * 100;
...](https://image.slidesharecdn.com/042-180131065456/85/04-2-62-320.jpg)
![const
:
const [ ] = ;](https://image.slidesharecdn.com/042-180131065456/85/04-2-65-320.jpg)
![const
const int EXCHANGE_RATE = 1120;
:
const [ ] = ;](https://image.slidesharecdn.com/042-180131065456/85/04-2-66-320.jpg)
![const
const int EXCHANGE_RATE = 1120;
:
const [ ] = ;
const .](https://image.slidesharecdn.com/042-180131065456/85/04-2-67-320.jpg)
![const
const int EXCHANGE_RATE = 1120;
:
const [ ] = ;
const .
pi
const](https://image.slidesharecdn.com/042-180131065456/85/04-2-68-320.jpg)
![const
const int EXCHANGE_RATE = 1120;
:
const [ ] = ;
const .
pi
const
3.14](https://image.slidesharecdn.com/042-180131065456/85/04-2-69-320.jpg)
04 2 오버플로 상수 매크로
- 2. • • (0-130 ) • km • C
- 3. short 2 byte (16 bit , -32768~32767 )
- 4. short 2 byte (16 bit , -32768~32767 ) ≤
- 5. short 2 byte (16 bit , -32768~32767 ) ≤
- 6. short 2 byte (16 bit , -32768~32767 ) ≤ int
- 7. short 2 byte (16 bit , -32768~32767 ) ≤ int 4 byte (32 bit , -2147483648~2147483647 )
- 8. short 2 byte (16 bit , -32768~32767 ) ≤ int 4 byte (32 bit , -2147483648~2147483647 ) ≤
- 9. short 2 byte (16 bit , -32768~32767 ) ≤ int 4 byte (32 bit , -2147483648~2147483647 ) ≤
- 10. short 2 byte (16 bit , -32768~32767 ) ≤ int 4 byte (32 bit , -2147483648~2147483647 ) ≤ long
- 11. short 2 byte (16 bit , -32768~32767 ) ≤ int 4 byte (32 bit , -2147483648~2147483647 ) ≤ long 8 byte (64 bit , -9223372036854775808 ~ 9223372036854775807)
- 12. short short 2 -32768~32767 int 4 -2147483648~2147483647 long long 8 -9223372036854775808~ 9223372036854775807 unsigned short short 2 0~65535 unsigned int 4 0~4294967295 unsigned long long 8 0~18446744073709551615 ( 1844 )
- 13. short short 2 -32768~32767 int 4 -2147483648~2147483647 long long 8 -9223372036854775808~ 9223372036854775807 unsigned short short 2 0~65535 unsigned int 4 0~4294967295 unsigned long long 8 0~18446744073709551615 ( 1844 ) int CPU .
- 14. short short 2 -32768~32767 int 4 -2147483648~2147483647 long long 8 -9223372036854775808~ 9223372036854775807 unsigned short short 2 0~65535 unsigned int 4 0~4294967295 unsigned long long 8 0~18446744073709551615 ( 1844 ) long 64bit .( )
- 15. short short 2 -32768~32767 int 4 -2147483648~2147483647 long long 8 -9223372036854775808~ 9223372036854775807 unsigned short short 2 0~65535 unsigned int 4 0~4294967295 unsigned long long 8 0~18446744073709551615 ( 1844 ) unsigned .
- 19. Lab
- 20. .
- 21. . short
- 25. overflow.c
- 26. Lab
- 28. radius
- 29. radius 500 / /
- 32. 12 100 .
- 33. 12 100 . sum = 123;
- 34. 12 100 . sum = 123;
- 35. 12 100 . sum = 123;
- 36. 12 100 . sum = 123; int int
- 37. 12 100 . sum = 123; int int
- 38. 12 100 . sum = 123; int int sum = 123L;
- 39. 12 100 . sum = 123; int int sum = 123L; .
- 40. 12 100 . sum = 123; int int sum = 123L; long long
- 41. u U unsigned int 123u 123U l L long 123l 123L ul UL unsigned long 123ul 123UL
- 42. 8 16
- 43. ex) 10 8 sum = 012; 10 = 1×8¹ + 2×8⁰ = 012₈ 8 16 8
- 44. ex) 10 8 sum = 012; 10 = 1×8¹ + 2×8⁰ = 012₈ 8 16 8 ‘0’ .
- 45. ex) 10 16 sum = 0xA; 10 = 10×16⁰ = 0xA₁₆ ex) 10 8 sum = 012; 10 = 1×8¹ + 2×8⁰ = 012₈ 8 16 8 ‘0’ . 16
- 46. ex) 10 16 sum = 0xA; 10 = 10×16⁰ = 0xA₁₆ ex) 10 8 sum = 012; 10 = 1×8¹ + 2×8⁰ = 012₈ 8 16 8 ‘0’ . 16 ‘0X’ ‘0x’ .
- 47. #include <stdio.h> #define EXCHANGE_RATE 1120 int main(void) { ... won1 = EXCHANGE_RATE * dollar1; won2 = EXCHANGE_RATE * dollar2; ... } #include <stdio.h> int main(void) { ... won1 = 1120 * dollar1; won2 = 1120 * dollar2; ... }
- 48. #include <stdio.h> #define EXCHANGE_RATE 1120 int main(void) { ... won1 = EXCHANGE_RATE * dollar1; won2 = EXCHANGE_RATE * dollar2; ... } #include <stdio.h> int main(void) { ... won1 = 1120 * dollar1; won2 = 1120 * dollar2; ... } won = 1120 * dollar; // (1) won = EXCHANGE_RATE * dollar; // (2)
- 49. #include <stdio.h> #define EXCHANGE_RATE 1120 int main(void) { ... won1 = EXCHANGE_RATE * dollar1; won2 = EXCHANGE_RATE * dollar2; ... } #include <stdio.h> int main(void) { ... won1 = 1120 * dollar1; won2 = 1120 * dollar2; ... } won = 1120 * dollar; // (1) won = EXCHANGE_RATE * dollar; // (2) (literal constant) :
- 50. #include <stdio.h> #define EXCHANGE_RATE 1120 int main(void) { ... won1 = EXCHANGE_RATE * dollar1; won2 = EXCHANGE_RATE * dollar2; ... } #include <stdio.h> int main(void) { ... won1 = 1120 * dollar1; won2 = 1120 * dollar2; ... } won = 1120 * dollar; // (1) won = EXCHANGE_RATE * dollar; // (2) :
- 51. #include <stdio.h> #define EXCHANGE_RATE 1120 int main(void) { ... won1 = EXCHANGE_RATE * dollar1; won2 = EXCHANGE_RATE * dollar2; ... } #include <stdio.h> int main(void) { ... won1 = 1120 * dollar1; won2 = 1120 * dollar2; ... } won = 1120 * dollar; // (1) won = EXCHANGE_RATE * dollar; // (2)
- 52. #include <stdio.h> #define EXCHANGE_RATE 1120 int main(void) { ... won1 = EXCHANGE_RATE * dollar1; won2 = EXCHANGE_RATE * dollar2; ... } #include <stdio.h> int main(void) { ... won1 = 1120 * dollar1; won2 = 1120 * dollar2; ... } won = 1120 * dollar; // (1) won = EXCHANGE_RATE * dollar; // (2) 1050 1050
- 53. #include <stdio.h> #define EXCHANGE_RATE 1120 int main(void) { ... won1 = EXCHANGE_RATE * dollar1; won2 = EXCHANGE_RATE * dollar2; ... } #include <stdio.h> int main(void) { ... won1 = 1120 * dollar1; won2 = 1120 * dollar2; ... } won = 1120 * dollar; // (1) won = EXCHANGE_RATE * dollar; // (2) 1050 1050 1050
- 54. #include <stdio.h> #define EXCHANGE_RATE 1120 int main(void) { ... won1 = EXCHANGE_RATE * dollar1; won2 = EXCHANGE_RATE * dollar2; ... } #include <stdio.h> int main(void) { ... won1 = 1120 * dollar1; won2 = 1120 * dollar2; ... } won = 1120 * dollar; // (1) won = EXCHANGE_RATE * dollar; // (2) 1050 . 1050 1050
- 55. #define
- 56. #define : #define [ ] [ ]
- 57. #define #define EXCHANGE_RATE 1120 : #define [ ] [ ]
- 58. #define #define EXCHANGE_RATE 1120 : #define [ ] [ ] (preprocessor) [ ] [ ] .
- 59. #define #define EXCHANGE_RATE 1120 : #define [ ] [ ] (preprocessor) [ ] [ ] .
- 60. #define #define EXCHANGE_RATE 1120 : #define [ ] [ ] (preprocessor) [ ] [ ] . ... w = EXCHANGE_RATE * 100; ... #define EXCHANGE_RATE 1120
- 61. #define #define EXCHANGE_RATE 1120 : #define [ ] [ ] (preprocessor) [ ] [ ] . ... w = EXCHANGE_RATE * 100; ... #define EXCHANGE_RATE 1120
- 62. #define #define EXCHANGE_RATE 1120 : #define [ ] [ ] (preprocessor) [ ] [ ] . ... w = EXCHANGE_RATE * 100; ... #define EXCHANGE_RATE 1120 ... w = 1120 * 100; ...
- 63. • • ) radius, circle_area, setCount(), getMax(),… • • _( ,underline) • • g_ ( )
- 64. const
- 65. const : const [ ] = ;
- 66. const const int EXCHANGE_RATE = 1120; : const [ ] = ;
- 67. const const int EXCHANGE_RATE = 1120; : const [ ] = ; const .
- 68. const const int EXCHANGE_RATE = 1120; : const [ ] = ; const . pi const
- 69. const const int EXCHANGE_RATE = 1120; : const [ ] = ; const . pi const 3.14
- 70. Lab
- 71. #define const (type) const int, char, float ( ) ( )
- 72. #define const (type) const int, char, float ( ) ( )
- 73. #define const (type) const int, char, float ( ) ( )
- 74. #define const (type) const int, char, float ( ) ( )
- 75. #define const (type) const int, char, float ( ) ( )
- 76. #define const (type) const int, char, float ( ) ( )