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  1. #include <iostream>
  2. #include <string.h>
  3.  
  4. uint8_t utf8CharacterLength( char const c )
  5. {
  6.   return
  7.     (c & 0b10000000) == 0b00000000 ? 1 :
  8.     (c & 0b11100000) == 0b11000000 ? 2 :
  9.     (c & 0b11110000) == 0b11100000 ? 3 :
  10.     (c & 0b11111000) == 0b11110000 ? 4 :
  11.     0;
  12. }
  13.  
  14. int main()
  15. {
  16. 	char str[] = "ab€cdéefègh";
  17.  
  18. 	size_t len = strlen( str );
  19.  
  20. 	for ( size_t i = 0; i < len; i++ )
  21. 	{
  22. 		uint8_t len = utf8CharacterLength( str[i] );
  23. 		printf( "Length of character at pos %2d is %d byte(s)\n", i, len );
  24. 		i += len-1;
  25. 	}
  26.  
  27. 	return 0;
  28. }
Success #stdin #stdout 0.01s 5440KB
comments (?)
stdin
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Standard input is empty
stdout
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Length of character at pos  0 is 1 byte(s)
Length of character at pos  1 is 1 byte(s)
Length of character at pos  2 is 3 byte(s)
Length of character at pos  5 is 1 byte(s)
Length of character at pos  6 is 1 byte(s)
Length of character at pos  7 is 2 byte(s)
Length of character at pos  9 is 1 byte(s)
Length of character at pos 10 is 1 byte(s)
Length of character at pos 11 is 2 byte(s)
Length of character at pos 13 is 1 byte(s)
Length of character at pos 14 is 1 byte(s)
https://ideone.com/Bh8bos
language:
C++ 4.3.2 (gcc-4.3.2)
created:
2 years ago
visibility:
secret

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