C++ writing and reading doubles from a binary file

Question

I want to perform disk I/O operations for a program that takes too much RAM. I use matrices of doubles and think writing them to disk as bytes is the fastest way (I need to

Answer 1

I think that the portability issue only occurs when you write to a file and read from it on a different machine. However, since you said you want to read/write to a file because of ram limitations, I can only assume you would do read/write operations on one machine at a time. This should work.