But the problem with bitget remains. The new bitstring is ok:
--> bitstring(a)
ans =
"0010000000000000000000000000000000000000000000000000000000000000"
--> bitstring(a+1)
ans =
"0010000000000000000000000000000000000000000000000000000000000001"
S.
Le 27/02/2020 à 16:37, Stéphane Mottelet a écrit :
You should generate big ints like this:
a=uint64(2)^61
S.
Le 27/02/2020 à 16:17, JLan a écrit :
I wonder if i have misunderstood the documentation for bitget, or if
this is
a bug? It seems to me that numbers > 2^53 are still not handled
correctly.
--> a=uint64(2^61)
a = 2305843009213693952
--> b=uint64(2^61)+1
b = 2305843009213693953
--> bitget(a,1:64)
ans =
column 1 to 32
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0
0 0 0 0 0 0 0
column 33 to 64
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0
0 0 0 0 1 0 0
--> bitget(b,1:64)
ans =
column 1 to 32
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0
0 0 0 0 0 0 0
column 33 to 64
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 0 0
0 0 0 0 1 0 0
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Stéphane Mottelet
Ingénieur de recherche
EA 4297 Transformations Intégrées de la Matière Renouvelable
Département Génie des Procédés Industriels
Sorbonne Universités - Université de Technologie de Compiègne
CS 60319, 60203 Compiègne cedex
Tel : +33(0)344234688
http://www.utc.fr/~mottelet
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