Jonathan Wakely wrote:
> On 02/07/07, Andrew Sayers <andrew-mysqlpp@stripped> wrote:
>> +inline std::ostream& operator <<(quote_type1 o,
>> + char in)
>> + return operator <<(o, static_cast<const char*
> Personally I would use simply static_cast<cont char*>(in) if doing that.
Go try it. Andrew and I both know what will happen, but it seems you
need a demonstration. >:) When you're done, you will understand the
lament in my previous message in this thread.
> The assembly code shows five instructions
You're trying to save three assembly instructions in a process that
moves data from a hard disk to a remote program over an IPC channel in
an intermediate representation, up through two layers of libraries, to a
program that will reformat that data via the C++ IOStreams library?
Have you any idea how many clock cycles elapsed in all that? 3 clock
cycles is so small by comparison that you should express the ratio on a
logarithmic scale, rather than as a percentage.
If three instructions matters to you, you should be using flat files of
fixed-length C structs instead of a relational database. That's the
only way you'll have any hope of being able to measure a meaningful