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Trailing u in Hex Number C/C++ [duplicate]

Tags:

c++

c

hex

Possible Duplicate:
Meaning of U suffix

I'm going through code that has a bunch of defines that look like: #define HEX_NUMBER (0x000000FFu)

What is the trailing u? I've tried compiling with and without it and I don't see any difference.

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ace Avatar asked Dec 14 '11 18:12

ace

1 Answers

Appending u to any integral constant makes the compiler interpret it as unsigned.

like image 123
zneak Avatar answered Oct 27 '22 07:10

zneak
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