Hashing function

[Pat]

I want to look for some one-to-one hashing function.

In C++, any one-to-one hashing function?

 

[osmium]

I want to look for some one-to-one hashing function.

In C++, any one-to-one hashing function?

I assume by one-to-one you mean perfect hashing. There is no such thing in
the standard libraries, I would search google to see what you can dig up.

 

[Ivan Vecerina]

I want to look for some one-to-one hashing function.

In C++, any one-to-one hashing function?

Assuming you are looking for a 'perfect hash' function:

There is no such thing as a general-purpose perfect hash. A hash
function can only be perfect for a specific set of inputs.

There are C/C++ tools, however, that can automatically generate
a perfect hash function for a specific list of input strings.
For example: http://www.gnu.org/software/gperf/gperf.html


hth