sign « Cast « C Q&A

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C Q&A » Cast » sign

1. C: performing signed comparison in unsigned variables without casting stackoverflow.com

i want a function with the following signature:

bool signed_a_greater_than_signed_b(unsigned char a, unsigned char b);

its output should be 1 iff the 2's-complement view of the bits stored in a is greater than ...

2. Silent cast to unsigned cboard.cprogramming.com

I'm a bit confused about this behaviour (gcc 4.1.2, Linux): i have function that accepts "char*" argument. Function is basicly my version of str(case)cmp() and I'm trying to optimize it for my locale and catch up with str(case)cmp(). I don't want to compile with any optimization flags. I found out that any extra argument given to function slows it down (1 ...

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