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  1. /*ideone.com,codepad.orgはエンコードにUTF-8を採用*/
  2. #include <stdio.h>
  3. #define SAMPLES 4
  4.  
  5. int main(void) {
  6. 	const char ascii_codes[]="123abc <,";
  7. 	const char kanakanji_codes[]="あいう亜伊宇";
  8. 	const char kigou_codes[]="□　■";
  9. 	const char others[]="𪐷𪗱𪘂";
  10. 	const char* chr_pointer;
  11. 	const char* const chrtary[SAMPLES] = {ascii_codes,kanakanji_codes,kigou_codes,others};
  12. 	for(int i=0;i<SAMPLES;i++){
  13. 		chr_pointer = chrtary[i];
  14. 		printf("「%s」={'%x'", chrtary[i], (unsigned char)*chrtary[i]);
  15. 		while(*(chr_pointer++)){
  16. 			printf(",'%x'", (unsigned char)*chr_pointer);
  17. 		}
  18. 		printf("}\n");
  19. 	}
  20. 	printf("\n///Unicode(UTF-8)の特徴///\n半角文字は基本的に1byte\n例:'1'=0x31、' '=0x20\n\n通常使う全角漢字かな記号は3byteが多い\n例:'あ'=0xe38182、'亜'=0xe4ba9c、'　'=0xe38080\n\nマイナーな漢字や記号になると4byte以上使う例も出てくる\n文字列の終端は必ずヌル文字0x00となる\n");
  21. 	return 0;
  22. }
Success #stdin #stdout 0s 2156KB
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「123abc <,」={'31','32','33','61','62','63','20','3c','2c','0'}
「あいう亜伊宇」={'e3','81','82','e3','81','84','e3','81','86','e4','ba','9c','e4','bc','8a','e5','ae','87','0'}
「□　■」={'e2','96','a1','e3','80','80','e2','96','a0','0'}
「𪐷𪗱𪘂」={'f0','aa','90','b7','f0','aa','97','b1','f0','aa','98','82','0'}

///Unicode(UTF-8)の特徴///
半角文字は基本的に1byte
例:'1'=0x31、' '=0x20

通常使う全角漢字かな記号は3byteが多い
例:'あ'=0xe38182、'亜'=0xe4ba9c、'　'=0xe38080

マイナーな漢字や記号になると4byte以上使う例も出てくる
文字列の終端は必ずヌル文字0x00となる
https://ideone.com/LO4490
language:
C99 (gcc 8.3)
created:
9 years ago
visibility:
secret

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