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optimize access to arrays of rank 1 or 2

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* libguile/array-handle.c (scm_array_handle_pos_1):
  (scm_array_handle_pos_2): New functions.

* libguile/generalized-arrays.c (scm_c_array_ref_1, scm_c_array_ref_2):
  (scm_c_array_set_1_x, scm_c_array_set_2_x): New functions.
  (scm_i_array_ref, scm_i_array_set_x): New subr bindings for array-ref
  and array-set! that avoid consing for arrays of rank 1 or 2.

* test-suite/tests/arrays.test ("array-set!"): Fix expected exception
  for wrong number of indices.
This commit is contained in:
Andy Wingo 2013-02-18 16:38:24 +01:00
parent 18cd9aff94
commit 336c921146
5 changed files with 154 additions and 17 deletions
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2
libguile/array-handle.h
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@ -114,6 +114,8 @@ typedef struct scm_t_array_handle {
SCM_API void scm_array_get_handle (SCM array, scm_t_array_handle *h);
SCM_API ssize_t scm_array_handle_pos (scm_t_array_handle *h, SCM indices);
SCM_API ssize_t scm_array_handle_pos_1 (scm_t_array_handle *h, ssize_t idx0);
SCM_API ssize_t scm_array_handle_pos_2 (scm_t_array_handle *h, ssize_t idx0, ssize_t idx1);
SCM_API SCM scm_array_handle_element_type (scm_t_array_handle *h);
SCM_API void scm_array_handle_release (scm_t_array_handle *h);
SCM_API const SCM* scm_array_handle_elements (scm_t_array_handle *h);