| A simple C++ wrapper for Unix file I/O. |
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| This is intended to be lightweight and easy to use, similar to Java's |
| RandomAccessFile and related classes. The usual C++ idioms of RAII and "you |
| don't pay for what you don't use" apply. |
| |
| In particular, the basic RandomAccessFile interface is kept small and simple so |
| it's trivial to add new implementations. |
| |
| This code will not log, because it can't know whether that's appropriate in |
| your application. |
| |
| This code will, in general, return -errno on failure. If an operation consisted |
| of multiple sub-operations, it will return the errno corresponding to the most |
| relevant operation. |
