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add pic_cxxr functions

This commit is contained in:
Yuichi Nishiwaki 2013-11-26 02:42:13 -08:00
parent 72cf45d4ea
commit bf6a337a5f
2 changed files with 29 additions and 0 deletions
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5
include/picrin/pair.h
View File

@ -15,4 +15,9 @@ pic_value pic_reverse(pic_state *, pic_value);
pic_value pic_assq(pic_state *, pic_value key, pic_value assoc);
pic_value pic_acons(pic_state *, pic_value key, pic_value val, pic_value assoc);
pic_value pic_caar(pic_state *, pic_value);
pic_value pic_cadr(pic_state *, pic_value);
pic_value pic_cdar(pic_state *, pic_value);
pic_value pic_cddr(pic_state *, pic_value);
#endif

24
src/pair.c
View File

@ -134,6 +134,30 @@ pic_acons(pic_state *pic, pic_value key, pic_value val, pic_value assoc)
return pic_cons(pic, pic_cons(pic, key, val), assoc);
}
pic_value
pic_caar(pic_state *pic, pic_value v)
{
return pic_car(pic, pic_car(pic, v));
}
pic_value
pic_cadr(pic_state *pic, pic_value v)
{
return pic_car(pic, pic_cdr(pic, v));
}
pic_value
pic_cdar(pic_state *pic, pic_value v)
{
return pic_cdr(pic, pic_car(pic, v));
}
pic_value
pic_cddr(pic_state *pic, pic_value v)
{
return pic_cdr(pic, pic_cdr(pic, v));
}
static pic_value
pic_pair_pair_p(pic_state *pic)
{