hashset.c

A hashset implementation that uses contiguous memory space. This allows you to build large sets and load them at runtime using mmap.

Usage

Refer to hashset.h for the complete interface.

#include "hashset.h"

int main() {
  set *ptr = NULL;
  set_alloc(&ptr, 5*1024, 20*1024, hasher);
  set_add(ptr, "abc", sizeof("abc"));
  assert(0 == set_find(ptr, "abc", sizeof("abc")));
  return 0;
}

Examples

Refer to preprocess.c and level0.c for examples.

preprocess reads a dictionary of words and adds them to a hashset that is persisted to disk.

$ make examples/preprocess
$ examples/preprocess

level0 is a spellchecker that uses the blob created by preprocess.

$ make examples/level0
$ examples/level0
this is a corect string
this is a <corect> string

Tests

Tests live in tests/. To run them, use

$ make test