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add boolean functions

This commit is contained in:
Yuichi Nishiwaki 2013-11-03 11:39:13 -05:00
parent 404ccb7fb1
commit 808fe32ac0
1 changed files with 24 additions and 0 deletions
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24
src/bool.c
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@ -28,8 +28,32 @@ pic_bool_eq_p(pic_state *pic)
return pic_bool_value(pic_eq_p(pic, x, y)); return pic_bool_value(pic_eq_p(pic, x, y));
} }
/* TODO: replace it with native opcode */
static pic_value
pic_bool_not(pic_state *pic)
{
pic_value v;
pic_get_args(pic, "o", &v);
return pic_false_p(v) ? pic_true_value() : pic_false_value();
}
static pic_value
pic_bool_boolean_p(pic_state *pic)
{
pic_value v;
pic_get_args(pic, "o", &v);
return (pic_true_p(v) || pic_false_p(v)) ? pic_true_value() : pic_false_value();
}
void void
pic_init_bool(pic_state *pic) pic_init_bool(pic_state *pic)
{ {
pic_defun(pic, "eq?", pic_bool_eq_p); pic_defun(pic, "eq?", pic_bool_eq_p);
pic_defun(pic, "not", pic_bool_not);
pic_defun(pic, "boolean?", pic_bool_boolean_p);
} }