88 lines
1.6 KiB
C
88 lines
1.6 KiB
C
#include "picrin.h"
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#include "picrin/pair.h"
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struct pic_vector *
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pic_vec_new(pic_state *pic, size_t len)
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{
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struct pic_vector *vec;
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vec = (struct pic_vector *)pic_obj_alloc(pic, sizeof(struct pic_vector), PIC_TT_VECTOR);
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vec->len = len;
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vec->data = (pic_value *)pic_alloc(pic, sizeof(pic_value) * len);
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return vec;
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}
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struct pic_vector *
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pic_vec_new_from_list(pic_state *pic, pic_value data)
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{
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struct pic_vector *vec;
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int i, len;
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len = pic_length(pic, data);
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vec = pic_vec_new(pic, len);
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for (i = 0; i < len; ++i) {
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vec->data[i] = pic_car(pic, data);
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data = pic_cdr(pic, data);
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}
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return vec;
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}
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static pic_value
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pic_vec_vector_p(pic_state *pic)
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{
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pic_value v;
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pic_get_args(pic, "o", &v);
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return pic_bool_value(pic_vec_p(v));
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}
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static pic_value
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pic_vec_make_vector(pic_state *pic)
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{
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pic_value v;
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int k, n, i;
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struct pic_vector *vec;
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n = pic_get_args(pic, "i|o", &k, &v);
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vec = pic_vec_new(pic, k);
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if (n == 3) {
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for (i = 0; i < k; ++i) {
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vec->data[i] = v;
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}
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}
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return pic_obj_value(vec);
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}
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static pic_value
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pic_vec_vector_length(pic_state *pic)
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{
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struct pic_vector *v;
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pic_get_args(pic, "v", &v);
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return pic_int_value(v->len);
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}
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static pic_value
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pic_vec_vector_ref(pic_state *pic)
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{
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struct pic_vector *v;
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int k;
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pic_get_args(pic, "vi", &v, k);
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return v->data[k];
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}
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void
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pic_init_vector(pic_state *pic)
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{
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pic_defun(pic, "vector?", pic_vec_vector_p);
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pic_defun(pic, "make-vector", pic_vec_make_vector);
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pic_defun(pic, "vector-length", pic_vec_vector_length);
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pic_defun(pic, "vector-ref", pic_vec_vector_ref);
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}
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