Hi, On Sun, Mar 05, 2006 at 07:28:52PM +0100, Olaf van der Spek wrote:

On 3/5/06, Sebastian Redl wrote:

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Does Boost contain a (string) compare function that returns -1 if a < b, 0 if a == b and 1 if a > b? Doing both < and == sounds like a lot of extra work in for example sorting algorithms.

std::string itself has a compare() member function that does this. You can use Boost.Bind to turn it into a function object.

But that's only case sensitive I guess. Does STL also have such a three-way function for ints (or a generic function)?

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In addition, the string algorithm library has such functions in the development version, likely to be included in the next official release.

What's the name of those?

There is case-insensitive lexicographical_compare included in string_algo lib. but it has only bool return value, not integer as you require. I could add something like that in future, but I will not be included in the following release. Regards, Pavol