FreeMat
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Section: Type Conversion Functions
Converts the binary decomposition of an integer array back to an integer array. The general syntax for its use is
y = bin2int(x)
where x
is a multi-dimensional logical array, where the last dimension indexes the bit planes (see int2bin
for an example). By default, the output of bin2int
is unsigned uint32
. To get a signed integer, it must be typecast correctly. A second form for bin2int
takes a 'signed'
flag
y = bin2int(x,'signed')
in which case the output is signed.
The following piece of code demonstrates various uses of the int2bin function. First the simplest example:
--> A = [2;5;6;2] A = 2 5 6 2 --> B = int2bin(A,8) B = 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 0 0 0 0 0 1 1 0 0 0 0 0 0 0 1 0 --> bin2int(B) ans = 2 5 6 2 --> A = [1;2;-5;2] A = 1 2 -5 2 --> B = int2bin(A,8) B = 0 0 0 0 0 0 0 1 0 0 0 0 0 0 1 0 1 1 1 1 1 0 1 1 0 0 0 0 0 0 1 0 --> bin2int(B) ans = 1 2 251 2 --> int32(bin2int(B)) ans = 1 2 251 2