bitshift Double inputs error

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Lefteris Kostakis
Lefteris Kostakis 2019-11-24
编辑： Lefteris Kostakis 2019-11-24
I use this command where A is a 4x4 array and "s" is a dobule (actually it's value is 18.000)
I assume the inputs as int64, then why I get error "Double inputs must have integer values in the range of ASSUMEDTYPE" ?
W = bitshift(A,s-15,'int64');
whos A prints: " A 4x4 128 double "
Edit: I changed the command to "W = bitshift(int64(A),int64(s-15),'int64');"
But is the way to do it ?

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KALYAN ACHARJYA
KALYAN ACHARJYA 2019-11-24
编辑：KALYAN ACHARJYA 2019-11-24
A=randi(10,[4 4]);
s=18;
W = bitshift(A,s-15,'int64')
Result:
W =
40 56 32 72
32 16 80 72
64 8 80 48
64 48 24 72
Documentation: If A is an array of signed integers, then bitshift returns the arithmetic shift results, preserving the signed bit when k is negative, and not preserving the signed bit when k is positive.
See simmilar question here

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