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What does the prefix 0x mean in hexadecimal?


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*nix (UNIX and related) shells, and likewise the C programming language, which was designed for UNIX (and the syntactical descendants of C[2]) use the prefix 0x for numeric constants represented in hex:

 

Wiki

 

looks like to denote the following number is hex

 

hope this helps

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  • 2 years later...

0x[0-9|A|B|C|D|E|F]+ : Hexadecimal

 

0[0-7]+ : Octal

 

int Piano = (0xCDEFAB); // hexadecimal (0x..)

int Zero = (00); // octal (0..)

int JamesBond = (.007); // decimal (.xxx)

Edited by khaled
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  • 3 weeks later...

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