[antlr-interest] BENCHMARK. ANTLR. Bad results.

[Paul J. Lucas]

On Sat, 13 Nov 2004, Ruslan Zasukhin wrote:

> * but IMHO on of the main problems of ANTLR C++, is that it heavally uses
> std::string class and a lots of *copying* of string when it parse tokens.

	std::string (indeed, std:: everything) isn't usually (depending
	on your C++ vendor) some half-assed implementation.  The std
	classes are *supposed* to be written well so that people will
	use them.

	Writing yet another string class makes any API using them
	annoying because then you often have to convert foo::string to
	std::string and vice-versa -- and that most definitely adds
	overhead and negates any performance improvement you may have
	gotten from using foo::string.

	Granted, it's always possible to use an efficient tool in an
	inefficient way, so yes it's possible that std::string isn't
	being used efficiently; but that suggests correcting the use,
	not replacing the tool.

	- Paul




 
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