diff options
Diffstat (limited to 'libguile/generalized-arrays.c')
-rw-r--r-- | libguile/generalized-arrays.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/libguile/generalized-arrays.c b/libguile/generalized-arrays.c index f5f41ac24..7e17a9f70 100644 --- a/libguile/generalized-arrays.c +++ b/libguile/generalized-arrays.c @@ -113,6 +113,36 @@ SCM_DEFINE (scm_array_rank, "array-rank", 1, 0, 0, #undef FUNC_NAME +size_t +scm_c_array_length (SCM array) +{ + scm_t_array_handle handle; + size_t res; + + scm_array_get_handle (array, &handle); + if (scm_array_handle_rank (&handle) < 1) + { + scm_array_handle_release (&handle); + scm_wrong_type_arg_msg (NULL, 0, array, "array of nonzero rank"); + } + res = handle.dims[0].ubnd - handle.dims[0].lbnd + 1; + scm_array_handle_release (&handle); + + return res; +} + +SCM_DEFINE (scm_array_length, "array-length", 1, 0, 0, + (SCM array), + "Return the length of an array: the dimension of its first\n" + "dimension. It is an error to ask for the length of an\n" + "array of rank 0.") +#define FUNC_NAME s_scm_array_rank +{ + return scm_from_size_t (scm_c_array_length (array)); +} +#undef FUNC_NAME + + SCM_DEFINE (scm_array_dimensions, "array-dimensions", 1, 0, 0, (SCM ra), "@code{array-dimensions} is similar to @code{array-shape} but replaces\n" |