3 ms·

Oh I didn't realize its size varies on x86 and x64... I thought it's always 64-bit under compilers that target Linux! Today I learned...

• jamesfinlayson 5y ago
  I think the size can vary by compiler rather than just by architecture.
  • dataflow 5y ago
    Yeah it can but in practice systems have a canonical model in their official headers.
    • gpderetta 5y ago
      And yet msvc and gcc disagree on sizeof(long) on AMD64. Edit: but of course you meant OS with system, not hardware architecture :)
      • dataflow 5y ago
        MSVC on... Linux AMD64?
        • gpderetta 5y ago
          :) to be fair I did note my misunderstanding in my edit.
• tomsmeding 5y ago
  There is a difference between 'long' and 'long long'. I believe the latter is always 64 bits on Linux.
  • dataflow 5y ago
    I'm indeed aware of that one :-)