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Questions - logical-and

Why is the expression true after bit shifting the value and condition with && in C

Have a look at the example: unsigned char c = 64; /* 0100 0000 */ c = (c << 2 && 512); /* 512: 10 0000 0000 */ If I shift c two times to the left, I should get from 0100 0000 (64) to t...
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B0r1

c

logical-operators

bit-shift

integer-promotion

logical-and

Votes: 0

Answers: 3

Latest Answer

From the C Standard (6.5.7 Bitwise shift operators) 3 The integer promotions are performed on each of the operands. The type of the result is that of the promoted left operand. So in this expression...
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Vlad from Moscow

Why does it display the sum if numbers aren&#39;t between the 2 values?

I want it to not display the result of the sum if the numbers are lower or equal to 1 or 1000. I don't know if using if is the best way, but that's what I tried using, and I don't really understand wh...
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NickPG44

c++

if-statement

constraints

logical-and

relational-operators

Votes: 0

Answers: 3

Latest Answer

The expression in this if statement if ( 1 <= a, b, c <= 1000) is an expression with the comma operator. It is equivalent to if ( ( 1 <= a ), ( b ), ( c <= 1000 ) ) and the value of the ...
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Vlad from Moscow

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