I have been seeing that we could use extended data types like unsigned long long which consume 16 bytes of memory, i.e. sizeof(an unsigned long long variable) results in 16 on my 64 bit machine, I understand that largest possible data type is restricted by the architecture of the system, i.e. to 8 bytes on my 64 bit machine, I just wanted to know how is this data type handled on a machine whose CPU instruction set is only 64 bit long. Please help. Thanks
As per c99 standard, size of long long should be minimum 64 bits. How is this implemented in a 32 bit machine (eg. addition or multiplication of 2 long longs). Also, What is the equivalent of long long in C++.
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I'm learning about decision making structures and I came across these codes:  if [ -f ./myfile ] then      cat ./myfile else      cat /home/user/myfile fi   [ -f ./myfile ] &amp;&amp; cat ./myfile || cat /home/user/myfile   Both of them behave the same. Are there any advantages to using one way from the other? Where can I download Ubuntu 16.04? I am unable to find the link for downloading Ubuntu 16.04 onto my   desktop/laptop. I am able to see the link only for 18.04, but I need 16.04.