[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
No. | Category | Subject | Author | Date | Views |
---|---|---|---|---|---|
841 | Develop | [ios] 아이폰용 앱 오픈 소스들 | hooni | 2013.04.23 | 470288 |
840 | Develop | 자주 쓰는 Docker 명령어 alias | hooni | 2020.01.10 | 272903 |
839 | Develop | [ios] 언어, 지역, 국가 설정 가져오기 | hooni | 2014.05.12 | 272319 |
838 | Develop | [ios] Start developing your navigation app for CarPlay without enrollment | hooni | 2020.02.22 | 125561 |
837 | Develop | [android] 만화 어플 소스코드 | hooni | 2013.04.23 | 92925 |
836 | Develop | 레고 마인드스톰 NXT 수도쿠, 큐브 소스코드.. 20 | hooni | 2013.04.23 | 81603 |
835 | Develop | [c#] Hashtable <-> Json (dll 포함) | hooni | 2013.04.23 | 80732 |
834 | Develop | [C#] MD5, SHA1 해시 & 인코딩 | hooni | 2013.04.23 | 77970 |
833 | Develop | [android] 점심 해결 앱 소스 코드 ㅋㅋ | hooni | 2013.04.23 | 76506 |
832 | Develop | [json] 종결자 (설명과 웹, C/C++/C# 프로그램 샘플 코드) | hooni | 2013.04.23 | 72048 |
831 | Develop | [android] keytool을 사용하여 키스토어 생성 | hooni | 2013.04.23 | 69579 |
830 | Develop | [ios] Random Thoughts: Rand() vs. arc4random() | hooni | 2013.10.31 | 68125 |