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C Array Q&A » bit » memory

1. fast way to check if an array of chars is zero stackoverflow.com

I have an array of bytes, in memory. What's the fastest way to see if all the bytes in the array are zero?

2. Got segfault on a macbook pro with a 24+bits indexed array stackoverflow.com

I am using GCC + the terminal to make an array of prime numbers. I once asked on #C@irc.freenode.net, but I still don't understand: An int can store values on 32 bits (so ...

3. Representing a very large array of bits in little memory stackoverflow.com

I would like to represent a structure containing 250 M states(1 bit each) somehow into as less memory as possible (100 k maximum). The operations on it are set/get. I cold ...

4. memory efficient flag array in C stackoverflow.com

I need to store in memory a very long array.Each array item will be just a flag TRUE/FALSE (0/1). I need it to be very memory efficient so I have thought ...

5. Executing memory array on 64-bit architecture bytes.com

The first problem is that code is a pointer returned from malloc() and you are incrementing it therby losing the start of you allocation. Not good. I would assign code to a temp pointer in increment it. Secondly, the de-reference operatot an the incrment operator have the same precedence and are associated right to left. So *code++ will increment code and ...

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