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diff --git a/ACE/apps/gperf/README b/ACE/apps/gperf/README new file mode 100644 index 00000000000..1da434549a1 --- /dev/null +++ b/ACE/apps/gperf/README @@ -0,0 +1,31 @@ +$Id$ + +While teaching a data structures course at University of California, +Irvine, I developed a program called GPERF that generates perfect hash +functions for sets of key words. A perfect hash function is: + + A hash function and a data structure that allows + recognition of a key word in a set of words using + exactly 1 probe into the data structure. + +The ace_gperf.texinfo file explains how the program works, the form of the +input, what options are available, and hints on choosing the best +options for particular key word sets. The texinfo file is readable +both via the GNU emacs `info' command and is also suitable for +typesetting with TeX. + +The enclosed Makefile creates the executable program ``ace_gperf'' and +also runs the regression tests. + +Output from the GPERF program is used to recognize reserved words in +the GNU C, GNU C++, and GNU Pascal compilers. In addition, it is used +by TAO'd IDL compiler to generate operation dispatching tables. + +For more information on GPERF, please see + +http://www.cs.wustl.edu/~schmidt/PDF/gperf.pdf + +Happy hacking! + +Douglas C. Schmidt +schmidt@cs.wustl.edu |