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Implement `hash' for structs.

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* libguile/hash.c (scm_hasher): Call `scm_i_struct_hash' upon
  `scm_tcs_struct'.
* libguile/struct.c (scm_i_struct_hash): New function.
* libguile/struct.h (scm_i_struct_hash): New declaration.

* test-suite/tests/structs.test ("hash"): New test prefix.
This commit is contained in:
Ludovic Courtès 2012-10-12 23:03:39 +02:00
parent 6996f07f57
commit 8ac870dee4
4 changed files with 98 additions and 2 deletions
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2
libguile/struct.h
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@ -193,6 +193,8 @@ SCM_API void scm_print_struct (SCM exp, SCM port, scm_print_state *);
SCM_INTERNAL SCM scm_i_struct_equalp (SCM s1, SCM s2);
SCM_INTERNAL unsigned long scm_struct_ihashq (SCM, unsigned long, void *);
SCM_INTERNAL unsigned long scm_i_struct_hash (SCM s, unsigned long n,
size_t depth);
SCM_INTERNAL SCM scm_i_alloc_struct (scm_t_bits *vtable_data, int n_words);
SCM_INTERNAL void scm_i_struct_inherit_vtable_magic (SCM vtable, SCM obj);
SCM_INTERNAL void scm_init_struct (void);