How to convert a hex code value to a unicode char

Question

Can someone tell me how to display a corresponding unicode character for a given input hex value

For example, consider I have a buffer which contain data like this [00210028004d015500abffff....]. Now i need to take set of four bytes and then convert that to equivalent unicode character.

So the output of this buffer will be !(M... (Don't know what are the unicode equivalent of 0155,00ab,ffff)

I can use a code like this to print an ascii char

    int t=65;
    char asciiChar = static_cast<char>(t);
    printf("%s",asciiChar);

and the output will be 'A'

Similarly is there any method to get Unicode chars

Thanks

score 0 · Answer 1 · answered Aug 02 '13 at 10:46

0

If you are using windows use the functions described here

answered Aug 02 '13 at 10:46

Quonux

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Joseph Pla · Answer 2 · 2013-08-02T11:13:53.627

0

You can do this:

char myChar = '\u0028';

edited Aug 02 '13 at 11:13

answered Aug 02 '13 at 10:46

Joseph Pla

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Why not use a `char`? – David G Aug 02 '13 at 10:47
@0x499602D2 Because in this context a `char` does not hold a character. – R. Martinho Fernandes Aug 02 '13 at 10:48
One for the escape character, one for the octo and one for the null terminator. – Joseph Pla Aug 02 '13 at 10:48
@JosephPla That depends on various factors (but the code is ill-formed anyway, because string literals are not convertible to `char*`). – R. Martinho Fernandes Aug 02 '13 at 10:50
@R.MartinhoFernandes What do you mean? – Joseph Pla Aug 02 '13 at 10:51
Actually, scratch that. It doesn't really depend on anything (I was thinking of the source character set, but left parenthesis is on the basic one). There's no escape character, and there's no octo. That literal is equivalent to `"("` which does not have three `char`s. – R. Martinho Fernandes Aug 02 '13 at 10:56
@R.MartinhoFernandes Ok thanks for the info but I'm not quite sure what was wrong with my answer. – Joseph Pla Aug 02 '13 at 10:57
When i used that i got an error "error C3851: '\u0028': a universal-character-name cannot designate a character in the basic character set " – Vinod Paul Aug 02 '13 at 11:08
And its not 0028 always. I need to convert the values in a buffer to its unicode char – Vinod Paul Aug 02 '13 at 11:12
@Vinod Paul, check this question out. You'll find it useful I think. http://stackoverflow.com/questions/12015571/how-to-print-unicode-character-in-c – Joseph Pla Aug 02 '13 at 11:13
@VinodPaul change your IDE settings to a unicode character set. – Joseph Pla Aug 02 '13 at 11:14
@VinodPaul sounds like the example you gave was misleading then. I recommend providing a more accurate example. Giving an example of Y when you want to do X doesn't really help. – R. Martinho Fernandes Aug 02 '13 at 11:35

How to convert a hex code value to a unicode char

2 Answers2