[ios] Objective-C Types & Storage Capacity
Code:
@import <limits.h> // ... NSLog(@"Primitive sizes:"); NSLog(@"The size of a char is: %d.", sizeof(char)); NSLog(@"The size of short is: %d.", sizeof(short)); NSLog(@"The size of int is: %d.", sizeof(int)); NSLog(@"The size of long is: %d.", sizeof(long)); NSLog(@"The size of long long is: %d.", sizeof(long long)); NSLog(@"The size of a unsigned char is: %d.", sizeof(unsigned char)); NSLog(@"The size of unsigned short is: %d.", sizeof(unsigned short)); NSLog(@"The size of unsigned int is: %d.", sizeof(unsigned int)); NSLog(@"The size of unsigned long is: %d.", sizeof(unsigned long)); NSLog(@"The size of unsigned long long is: %d.", sizeof(unsigned long long)); NSLog(@"The size of a float is: %d.", sizeof(float)); NSLog(@"The size of a double is %d.", sizeof(double)); NSLog(@"Ranges:"); NSLog(@"CHAR_MIN: %c", CHAR_MIN); NSLog(@"CHAR_MAX: %c", CHAR_MAX); NSLog(@"SHRT_MIN: %hi", SHRT_MIN); // signed short int NSLog(@"SHRT_MAX: %hi", SHRT_MAX); NSLog(@"INT_MIN: %i", INT_MIN); NSLog(@"INT_MAX: %i", INT_MAX); NSLog(@"LONG_MIN: %li", LONG_MIN); // signed long int NSLog(@"LONG_MAX: %li", LONG_MAX); NSLog(@"ULONG_MAX: %lu", ULONG_MAX); // unsigned long int NSLog(@"LLONG_MIN: %lli", LLONG_MIN); // signed long long int NSLog(@"LLONG_MAX: %lli", LLONG_MAX); NSLog(@"ULLONG_MAX: %llu", ULLONG_MAX); // unsigned long long int
Result:
<32 bit process>
Primitive sizes:
The size of a char is: 1.
The size of short is: 2.
The size of int is: 4.
The size of long is: 4.
The size of long long is: 8.
The size of a unsigned char is: 1.
The size of unsigned short is: 2.
The size of unsigned int is: 4.
The size of unsigned long is: 4.
The size of unsigned long long is: 8.
The size of a float is: 4.
The size of a double is 8.
Ranges:
CHAR_MIN: -128
CHAR_MAX: 127
SHRT_MIN: -32768
SHRT_MAX: 32767
INT_MIN: -2147483648
INT_MAX: 2147483647
LONG_MIN: -2147483648
LONG_MAX: 2147483647
ULONG_MAX: 4294967295
LLONG_MIN: -9223372036854775808
LLONG_MAX: 9223372036854775807
ULLONG_MAX: 18446744073709551615
<64 bit process>
Primitive sizes:
The size of a char is: 1.
The size of short is: 2.
The size of int is: 4.
The size of long is: 8.
The size of long long is: 8.
The size of a unsigned char is: 1.
The size of unsigned short is: 2.
The size of unsigned int is: 4.
The size of unsigned long is: 8.
The size of unsigned long long is: 8.
The size of a float is: 4.
The size of a double is 8.
Ranges:
CHAR_MIN: -128
CHAR_MAX: 127
SHRT_MIN: -32768
SHRT_MAX: 32767
INT_MIN: -2147483648
INT_MAX: 2147483647
LONG_MIN: -9223372036854775808
LONG_MAX: 9223372036854775807
ULONG_MAX: 18446744073709551615
LLONG_MIN: -9223372036854775808
LLONG_MAX: 9223372036854775807
ULLONG_MAX: 18446744073709551615
[출처] https://bhaveshdhaduk.wordpress.com/2014/01/25/ios-objective-c-types/
[참고] http://reference.jumpingmonkey.org/programming_languages/objective-c/types.html
번호 | 분류 | 제목 | 글쓴이 | 날짜 | 조회 수 |
---|---|---|---|---|---|
733 | Develop | [c++] mfc로 만든 현재 디렉토리 읽어오기/세팅하기 (GetCurrentDirectory/SetCurrentDirectory) | hooni | 2013.04.23 | 8461 |
732 | Develop | [c++] mfc에서 윈도우 항상 위 속성 주기.. | hooni | 2013.04.23 | 11292 |
731 | Develop | [c++] mfc이용한 트레이아이콘(TrayIcon) 클래스 예제 프로젝트 | hooni | 2013.04.23 | 9245 |
730 | Develop | [c++] namespace 사용 예 | hooni | 2003.04.23 | 8654 |
729 | Develop | [c++] p.118 확인학습 5번 | hooni | 2003.04.23 | 10734 |
728 | Develop | [c++] p.47 연습문제 3번 | hooni | 2003.04.23 | 10105 |
727 | Develop | [c++] p.58 연습문제 2번 | hooni | 2003.04.23 | 16296 |
726 | Develop | [c++] RSA Sample 4 CPP | hooni | 2013.04.23 | 9181 |
725 | Develop | [c++] SetWindowPos함수를 이용한 크기조절 예제 1 | hooni | 2013.04.23 | 11075 |
724 | Develop | [c++] String Tokenizer (나중에 c 코드로 변경해서 사용할 것) | hooni | 2013.04.23 | 11690 |
723 | Develop | [c++] template 사용예 | hooni | 2003.04.23 | 7147 |
722 | Develop | [c++] Win32 API 기본 출력인 MessageBox() 함수 사용 예제.. | hooni | 2013.04.23 | 12625 |