uCBQN/src/utils/each.h
2021-05-23 21:55:49 +03:00

151 lines
4.9 KiB
C

#pragma once
#include "mut.h"
static inline B mv(B* p, usz n) { B r = p [n]; p [n] = m_f64(0); return r; }
static inline B hmv(HArr_p p, usz n) { B r = p.a[n]; p.a[n] = m_f64(0); return r; }
static B eachd_fn(BBB2B f, B fo, B w, B x) { // consumes w,x; assumes at least one is array
if (isAtm(w)) w = m_atomUnit(w);
if (isAtm(x)) x = m_atomUnit(x);
ur wr = rnk(w); BS2B wget = TI(w).get;
ur xr = rnk(x); BS2B xget = TI(x).get;
bool wg = wr>xr;
ur rM = wg? wr : xr;
ur rm = wg? xr : wr;
if (rM==0) {
B r = f(fo, wget(w,0), xget(x,0));
dec(w); dec(x);
return m_hunit(r);
}
if (rm && !eqShPrefix(a(w)->sh, a(x)->sh, rm)) thrF("Mapping: Expected equal shape prefix (%H ≡ ≢𝕨, %H ≡ ≢𝕩)", w, x);
bool rw = rM==wr && ((v(w)->type==t_harr) & reusable(w)); // v(…) is safe as rank>0
bool rx = rM==xr && ((v(x)->type==t_harr) & reusable(x));
if (rw|rx && (wr==xr | rm==0)) {
HArr_p r = harr_parts(rw? w : x);
usz ria = r.c->ia;
if (wr==0) { B c=wget(w, 0); for(usz i = 0; i < ria; i++) r.a[i] = f(fo, inc(c), hmv(r,i)); dec(c); }
else if (xr==0) { B c=xget(x, 0); for(usz i = 0; i < ria; i++) r.a[i] = f(fo, hmv(r,i), inc(c) ); dec(c); }
else {
assert(wr==xr);
if (rw) for (usz i = 0; i < ria; i++) r.a[i] = f(fo, hmv(r,i), xget(x,i));
else for (usz i = 0; i < ria; i++) r.a[i] = f(fo, wget(w,i), hmv(r,i));
}
dec(rw? x : w);
return r.b;
}
B bo = wg? w : x;
usz ria = a(bo)->ia;
usz ri = 0;
HArr_p r = m_harrs(ria, &ri);
if (wr==xr) for(; ri < ria; ri++) r.a[ri] = f(fo, wget(w,ri), xget(x,ri));
else if (wr==0) { B c=wget(w, 0); for(; ri < ria; ri++) r.a[ri] = f(fo, inc(c) , xget(x,ri)); dec(c); }
else if (xr==0) { B c=xget(x, 0); for(; ri < ria; ri++) r.a[ri] = f(fo, wget(w,ri), inc(c) ); dec(c); }
else if (ria>0) {
usz min = wg? a(x)->ia : a(w)->ia;
usz ext = ria / min;
if (wg) for (usz i = 0; i < min; i++) { B c=xget(x,i); for (usz j = 0; j < ext; j++,ri++) r.a[ri] = f(fo, wget(w,ri), inc(c)); }
else for (usz i = 0; i < min; i++) { B c=wget(w,i); for (usz j = 0; j < ext; j++,ri++) r.a[ri] = f(fo, inc(c), xget(x,ri)); }
}
B rb = harr_fc(r, bo);
dec(w); dec(x);
return rb;
}
static B eachm_fn(BB2B f, B fo, B x) { // consumes x; x must be array
usz ia = a(x)->ia;
if (ia==0) return x;
BS2B xget = TI(x).get;
usz i = 0;
B cr = f(fo, xget(x,0));
HArr_p rH;
if (TI(x).canStore(cr)) {
bool reuse = reusable(x);
if (v(x)->type==t_harr) {
B* xp = harr_ptr(x);
if (reuse) {
dec(xp[i]); xp[i++] = cr;
for (; i < ia; i++) xp[i] = f(fo, mv(xp,i));
return x;
} else {
rH = m_harrs(ia, &i);
rH.a[i++] = cr;
for (; i < ia; i++) rH.a[i] = f(fo, inc(xp[i]));
return harr_fcd(rH, x);
}
} else if (TI(x).elType==el_i32) {
i32* xp = i32any_ptr(x);
B r; i32* rp;
if (reuse && v(x)->type==t_i32arr) { r=x; rp = xp; }
else r = m_i32arrc(&rp, x);
rp[i++] = o2iu(cr);
for (; i < ia; i++) {
cr = f(fo, m_i32(xp[i]));
if (!q_i32(cr)) {
rH = m_harrs(ia, &i);
for (usz j = 0; j < i; j++) rH.a[j] = m_i32(rp[j]);
if (!reuse) dec(r);
goto fallback;
}
rp[i] = o2iu(cr);
}
if (!reuse) dec(x);
return r;
} else if (TI(x).elType==el_f64) {
f64* xp = f64any_ptr(x);
B r; f64* rp;
if (reuse && v(x)->type==t_f64arr) { r=x; rp = xp; }
else r = m_f64arrc(&rp, x);
rp[i++] = o2fu(cr);
for (; i < ia; i++) {
cr = f(fo, m_f64(xp[i]));
if (!q_f64(cr)) {
rH = m_harrs(ia, &i);
for (usz j = 0; j < i; j++) rH.a[j] = m_f64(rp[j]);
if (!reuse) dec(r);
goto fallback;
}
rp[i] = o2fu(cr);
}
if (!reuse) dec(x);
return r;
} else if (v(x)->type==t_fillarr) {
B* xp = fillarr_ptr(x);
if (reuse) {
dec(c(FillArr,x)->fill);
c(FillArr,x)->fill = bi_noFill;
dec(xp[i]); xp[i++] = cr;
for (; i < ia; i++) xp[i] = f(fo, mv(xp,i));
return x;
} else {
HArr_p rp = m_harrs(ia, &i);
rp.a[i++] = cr;
for (; i < ia; i++) rp.a[i] = f(fo, inc(xp[i]));
return harr_fcd(rp, x);
}
} else
rH = m_harrs(ia, &i);
} else
rH = m_harrs(ia, &i);
fallback:
rH.a[i++] = cr;
for (; i < ia; i++) rH.a[i] = f(fo, xget(x,i));
return harr_fcd(rH, x);
}
static B eachm(B f, B x) { // complete F¨ x without fills
if (isAtm(x)) return m_hunit(c1(f, x));
if (isFun(f)) return eachm_fn(c(Fun,f)->c1, f, x);
if (isMd(f)) if (isAtm(x) || a(x)->ia) { decR(x); thrM("Calling a modifier"); }
usz ia = a(x)->ia;
MAKE_MUT(r, ia);
mut_fill(r, 0, f, ia);
return mut_fcd(r, x);
}
static B eachd(B f, B w, B x) { // complete w F¨ x without fills
if (isAtm(w) & isAtm(x)) return m_hunit(c2(f, w, x));
return eachd_fn(c2fn(f), f, w, x);
}