mirror of
https://github.com/ilyakooo0/urbit.git
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414 lines
9.2 KiB
C
414 lines
9.2 KiB
C
/* i/n/r.h
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**
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** This file is in the public domain.
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*/
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/** u3r_*: read without ever crashing.
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**/
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#if 1
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# define u3r_du(a) u3a_is_cell(a)
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# define u3r_ud(a) u3a_is_atom(a)
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#else
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/* u3r_du(): c3y iff `a` is cell.
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*/
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c3_o
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u3r_du(u3_noun a);
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/* u3r_ud(): c3n iff `a` is cell.
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*/
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c3_o
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u3r_ud(u3_noun a);
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#endif
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/* u3r_at(): fragment `a` of `b`, or u3_none.
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*/
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u3_weak
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u3r_at(u3_atom a, u3_weak b);
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/* u3r_mean():
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**
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** Attempt to deconstruct `a` by axis, noun pairs; 0 terminates.
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** Axes must be sorted in tree order.
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*/
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c3_o
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u3r_mean(u3_noun a, ...);
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/* u3r_mug():
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**
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** Compute and/or recall the mug (31-bit hash) of (a).
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*/
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c3_w
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u3r_mug(u3_noun a);
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/* u3r_mug_string():
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**
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** Compute the mug of `a`, LSB first.
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*/
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c3_w
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u3r_mug_string(const c3_c *a_c);
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/* u3r_mug_words():
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**
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** Compute the mug of `buf`, `len`, LSW first.
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*/
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c3_w
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u3r_mug_words(const c3_w *buf_w,
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c3_w len_w);
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/* u3r_mug_bytes():
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**
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** Compute the mug of `buf`, `len`, LSW first.
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*/
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c3_w
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u3r_mug_bytes(const c3_y *buf_w,
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c3_w len_w);
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/* u3r_mug_cell():
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**
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** Compute the mug of `[a b]`.
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*/
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c3_w
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u3r_mug_cell(u3_noun a,
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u3_noun b);
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/* u3r_mug_trel():
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**
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** Compute the mug of `[a b c]`.
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*/
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c3_w
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u3r_mug_trel(u3_noun a,
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u3_noun b,
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u3_noun c);
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/* u3r_mug_qual():
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**
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** Compute the mug of `[a b c d]`.
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*/
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c3_w
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u3r_mug_qual(u3_noun a,
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u3_noun b,
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u3_noun c,
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u3_noun d);
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/* u3r_mug_both():
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**
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** Join two mugs.
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*/
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c3_w
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u3r_mug_both(c3_w a_w,
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c3_w b_w);
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/* u3r_fing():
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**
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** Yes iff (a) and (b) are the same copy of the same noun.
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** (Ie, by pointer equality - u3r_sing with false negatives.)
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*/
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c3_o
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u3r_fing(u3_noun a,
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u3_noun b);
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/* u3r_fing_cell():
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**
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** Yes iff `[p q]` and `b` are the same copy of the same noun.
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*/
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c3_o
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u3r_fing_cell(u3_noun p,
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u3_noun q,
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u3_noun b);
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/* u3r_fing_mixt():
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**
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** Yes iff `[p q]` and `b` are the same copy of the same noun.
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*/
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c3_o
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u3r_fing_mixt(const c3_c* p_c,
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u3_noun q,
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u3_noun b);
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/* u3r_fing_trel():
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**
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** Yes iff `[p q r]` and `b` are the same copy of the same noun.
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*/
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c3_o
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u3r_fing_trel(u3_noun p,
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u3_noun q,
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u3_noun r,
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u3_noun b);
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/* u3r_fing_qual():
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**
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** Yes iff `[p q r s]` and `b` are the same copy of the same noun.
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*/
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c3_o
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u3r_fing_qual(u3_noun p,
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u3_noun q,
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u3_noun r,
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u3_noun s,
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u3_noun b);
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/* u3r_sing():
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**
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** Yes iff (a) and (b) are the same noun.
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*/
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c3_o
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u3r_sing(u3_noun a, u3_noun b);
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/* u3r_sung(): yes iff (a) and (b) are the same noun, unifying equals.
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**
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** Make sure you have no live, uncounted pointers to any noun
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** within (a) or (b)!
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*/
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c3_o
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u3r_sung(u3_noun a, u3_noun b);
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/* u3r_sing_c):
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**
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** Yes iff (b) is the same noun as the C string [a].
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*/
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c3_o
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u3r_sing_c(const c3_c* a_c,
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u3_noun b);
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/* u3r_sing_cell():
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**
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** Yes iff `[p q]` and `b` are the same noun.
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*/
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c3_o
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u3r_sing_cell(u3_noun p,
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u3_noun q,
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u3_noun b);
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/* u3r_sing_mixt():
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**
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** Yes iff `[p q]` and `b` are the same noun.
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*/
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c3_o
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u3r_sing_mixt(const c3_c* p_c,
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u3_noun q,
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u3_noun b);
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/* u3r_sing_trel():
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**
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** Yes iff `[p q r]` and `b` are the same noun.
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*/
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c3_o
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u3r_sing_trel(u3_noun p,
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u3_noun q,
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u3_noun r,
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u3_noun b);
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/* u3r_sing_qual():
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**
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** Yes iff `[p q r s]` and `b` are the same noun.
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*/
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c3_o
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u3r_sing_qual(u3_noun p,
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u3_noun q,
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u3_noun r,
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u3_noun s,
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u3_noun b);
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/* u3r_nord():
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**
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** Return 0, 1 or 2 if `a` is below, equal to, or above `b`.
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*/
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u3_atom
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u3r_nord(u3_noun a,
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u3_noun b);
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/* u3r_mold():
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**
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** Divide `a` as a mold `[b.[p q] c]`.
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*/
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c3_o
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u3r_mold(u3_noun a,
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u3_noun* b,
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u3_noun* c);
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/* u3r_cell():
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**
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** Divide `a` as a cell `[b c]`.
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*/
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c3_o
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u3r_cell(u3_noun a,
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u3_noun* b,
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u3_noun* c);
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/* u3r_trel():
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**
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** Divide `a` as a trel `[b c]`.
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*/
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c3_o
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u3r_trel(u3_noun a,
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u3_noun* b,
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u3_noun* c,
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u3_noun* d);
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/* u3r_qual():
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**
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** Divide (a) as a qual [b c d e f].
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*/
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c3_o
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u3r_qual(u3_noun a,
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u3_noun* b,
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u3_noun* c,
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u3_noun* d,
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u3_noun* e);
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/* u3r_quil():
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**
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** Divide (a) as a quil [b c d e f].
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*/
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c3_o
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u3r_quil(u3_noun a,
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u3_noun* b,
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u3_noun* c,
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u3_noun* d,
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u3_noun* e,
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u3_noun* f);
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/* u3r_p():
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**
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** & [0] if [a] is of the form [b *c].
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*/
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c3_o
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u3r_p(u3_noun a,
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u3_noun b,
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u3_noun* c);
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/* u3r_bush():
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**
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** Factor [a] as a bush [b.[p q] c].
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*/
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c3_o
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u3r_bush(u3_noun a,
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u3_noun* b,
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u3_noun* c);
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/* u3r_pq():
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**
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** & [0] if [a] is of the form [b *c d].
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*/
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c3_o
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u3r_pq(u3_noun a,
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u3_noun b,
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u3_noun* c,
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u3_noun* d);
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/* u3r_pqr():
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**
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** & [0] if [a] is of the form [b *c *d *e].
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*/
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c3_o
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u3r_pqr(u3_noun a,
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u3_noun b,
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u3_noun* c,
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u3_noun* d,
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u3_noun* e);
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/* u3r_pqrs():
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**
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** & [0] if [a] is of the form [b *c *d *e *f].
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*/
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c3_o
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u3r_pqrs(u3_noun a,
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u3_noun b,
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u3_noun* c,
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u3_noun* d,
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u3_noun* e,
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u3_noun* f);
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/* u3r_met():
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**
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** Return the size of (b) in bits, rounded up to
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** (1 << a_y).
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**
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** For example, (a_y == 3) returns the size in bytes.
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*/
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c3_w
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u3r_met(c3_y a_y,
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u3_atom b);
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/* u3r_bit():
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**
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** Return bit (a_w) of (b).
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*/
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c3_b
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u3r_bit(c3_w a_w,
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u3_atom b);
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/* u3r_byte():
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**
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** Return byte (a_w) of (b).
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*/
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c3_y
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u3r_byte(c3_w a_w,
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u3_atom b);
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/* u3r_bytes():
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**
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** Copy bytes (a_w) through (a_w + b_w - 1) from (d) to (c).
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*/
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void
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u3r_bytes(c3_w a_w,
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c3_w b_w,
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c3_y* c_y,
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u3_atom d);
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/* u3r_chop():
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**
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** Into the bloq space of `met`, from position `fum` for a
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** span of `wid`, to position `tou`, XOR from atom `src`
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** into ray `dst`.
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*/
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void
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u3r_chop(c3_g met_g,
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c3_w fum_w,
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c3_w wid_w,
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c3_w tou_w,
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c3_w* dst_w,
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u3_atom src);
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/* u3r_mp():
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**
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** Copy (b) into (a_mp).
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*/
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void
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u3r_mp(mpz_t a_mp,
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u3_atom b);
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/* u3r_word():
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**
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** Return word (a_w) of (b).
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*/
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c3_w
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u3r_word(c3_w a_w,
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u3_atom b);
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/* u3r_chub():
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**
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** Return double-word (a_w) of (b).
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*/
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c3_d
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u3r_chub(c3_w a_w,
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u3_atom b);
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/* u3r_words():
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**
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** Copy words (a_w) through (a_w + b_w - 1) from (d) to (c).
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*/
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void
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u3r_words(c3_w a_w,
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c3_w b_w,
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c3_w* c_w,
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u3_atom d);
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/* u3r_string(): `a`, a text atom, as malloced C string.
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*/
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c3_c*
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u3r_string(u3_atom a);
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/* u3r_tape(): `a`, a list of bytes, as malloced C string.
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*/
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c3_y*
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u3r_tape(u3_noun a);
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