perfhash.h 2.1 KB

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  1. /* ----------------------------------------------------------------------- *
  2. *
  3. * Copyright 2017 The NASM Authors - All Rights Reserved
  4. * See the file AUTHORS included with the NASM distribution for
  5. * the specific copyright holders.
  6. *
  7. * Redistribution and use in source and binary forms, with or without
  8. * modification, are permitted provided that the following
  9. * conditions are met:
  10. *
  11. * * Redistributions of source code must retain the above copyright
  12. * notice, this list of conditions and the following disclaimer.
  13. * * Redistributions in binary form must reproduce the above
  14. * copyright notice, this list of conditions and the following
  15. * disclaimer in the documentation and/or other materials provided
  16. * with the distribution.
  17. *
  18. * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
  19. * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
  20. * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  21. * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  22. * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
  23. * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  24. * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  25. * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  26. * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  27. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28. * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
  29. * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
  30. * EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  31. *
  32. * ----------------------------------------------------------------------- */
  33. #ifndef PERFHASH_H
  34. #define PERFHASH_H 1
  35. #include "compiler.h"
  36. #include "nasmlib.h" /* For invalid_enum_str() */
  37. struct perfect_hash {
  38. uint64_t crcinit;
  39. uint32_t hashmask;
  40. uint32_t tbllen;
  41. int tbloffs;
  42. int errval;
  43. const int16_t *hashvals;
  44. const char * const *strings;
  45. };
  46. int perfhash_find(const struct perfect_hash *, const char *);
  47. #endif /* PERFHASH_H */