This question’s accepted answer shows how to set a bit in c: How do you set, clear, and toggle a single bit?
But it is not really said what ‘x’ is.
Is it counted from left to right or right to left ? Isn’t that platform dependent anyway ?
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This question’s accepted answer shows how to set a bit in c: How do you set, clear, and toggle a single bit?
But it is not really said what ‘x’ is.
Is it counted from left to right or right to left ? Isn’t that platform dependent anyway ?
The C standard doesn’t say how you number the bits you shift. It says that a value will be twice as large for each position you shift it.
On most current machines, this means that
1 << xwill set bit number x in the value’s representation. It formally doesn’t say where that bit is stored.